The best way to waterproof plywood is to coat it with SBR (Styrene Butadiene Rubber) or PVA (Polyvinyl Acetate). . Hide glues are the ones that take longer, around 3 hours. In normal conditions this should be about one week, but there is no hard and fast rule to the time it may take; Surfaces that are very damp will take longer to harden up. By priming your walls with either an acrylic, alkyd, or PVA primer, depending on the surface type, will ensure your wallpaper adheres properly to the surface without damaging the wall. You can use SBR in a similar way. SBR primer is the best option to be used to waterproof wet surfaces before tiling. You should apply it right away before starting plastering. On the other hand, an oil-based primer will need a longer time to dry out. Using PVA glue for plaster is generally a good idea, but there are a few things to consider. The colourless finish, which doesn't react with other surface preparation materials or substances. It's also useful in painting as a primer that creates a sealant to stop old water stains from leaking onto new paint or wallpaper. Cookies Congratulations! Different Drying Factors. You can use a diluted PVA glue mix to prime the wall before tiling. PVA is touch dry in 30 minutes to an hour. For up to three days, size will only be active on the surface. The non-woven aspect of the wallpaper means that it is breathable, making it suitable for normal humid environments. Dilute 1 part PVA with 4 parts water and mix well.Can plaster dry in 24 hours?Plaster dries to the touch in two to four hours, but it must cure properly before being painted, drilled into, or covered with kitchen cabinets. to apply a PVA solution and can plaster or skim directly into a plasterboard panel. The next step is to apply the diluted PVA mixture to the wall. Can you wall paper straight on to plasterboard? Install your wallpaper and make your interior dreams come true. How long we keep your personal information will vary and will depend on the purpose and use of information collected. Turn the oven to a warm setting. Many adhesives and grouts used for tiling are cement-based. Over that time weve built up an enviable reputation for our expertise and customer service. How do you celebrate Ati Atihan Festival? where is bob hoover buried; lloyd williams obituary; raelondo wright rae carruth son; que significa una casa sucia; altland house haunted; avengers fanfiction peter intern meets team cap Nobodys bathroom is the same. on the back of the tin of unibond it says 5 water to 1 glue. Tiles are used most commonly in wet areas like bathrooms, kitchen splashes, wet rooms, and showers. PVA glue for plaster is highly effective when used as a bonding agent. One Coat Render is a high quality, pre-blended formulation, for single coat application reducing total drying time. Required fields are marked *. PVA glue, the normal craft glue, has a surprisingly versatile number of uses in home improvements. London Member since 12 Dec 2014 11 jobs, 91% positive feedback. Primer creates a barrier between the wall and the paper so that the adhesive doesnt overly bond with the wall material. A mix of 1 part PVA to 4 parts water is recommended for this process. Once it is dried completely, it will lose its adhesive ability and keep its sealant qualities for life. The correct mix for pva for plastering is 1 part pva to 5 parts water, and really only used to stop the plaster drying too quickly, plastering over silk paint with or without pva can only be as adhering as the paint before, pva doesnt make the plaster stick to the behind of a painted surface! How long does plastering take to dry? I thought that as well Micilin.I've never heard of anybody (a pro) coating a wall and then PVA-ing it before putting on the finish.The first coat of finish sucks in a bit,but the second one usually goes on a treat,with plenty of time to make a job of it.A totally dried out wall is a different story. Thanks for your reply guys. Just paint the whole ceiling with an solvent/oil-based undercoat , thin it slightly and apply with a foam/sponge roller & it will seal itb ready for a few coats of vinyl matt..Buy trade emulsion, not. You can prepare your wall for wallpaper by a process called mudding. Depending on the humidity where you live, this could take several days, especially if you used a lot of Mod Podge. The more humidity, coolness, and lack of good air circulation, the longer it'll take. Size will only be active on the surface for up to 3 days.Secondly, what to use for sizing walls?Apr 21, 2021 You can create your listing free at DIYnot Local. If conditions are . These primers are better than PVA primers in the sense that PVA remains soluble in water even after drying. Like 29. Polyurethane is a type of wood glue used to fill small gaps and bond plastic, stone, and ceramics. Before wallpaper can be hung, it takes 2 hours to cure. JavaScript is disabled. 24 hours. On your iOS device, open the Settings app. Prime clean surface (1 PVA : 5 water) and allow to dry. Our Top Tips for Winter Gluing- Keep your adhesive warm this winter! In most cases 1200 to 1400 gauge lining paper will be sufficient to apply to the wall before wallpapering. You can use a blow dryer or a heat lamp to hasten the drying process. Must Have Adhesives & Equipment for plastering How to bond curved panels with 4152 resin Adhesive, 5 Simple Steps to stronger, quieter, more durable stairs. Need to leave decent time between paint coats, for each to throughly dry before applying the next one. Always put on with a roller. Darker colors tend to cover up any imperfections. Smooth the wall. 3.1.4 Step 4: Ready for tiling. From our experience, freshly plastered plasterboard can take 2 to 3 days to dry. Your wallpaper will have its best look on a flat wall. A smooth wall will ensure that every inch of wallpaper surface area is being held against the wall. it will take 1-2 hours. Bonding plaster has a high level of stickability because it does not rely on an absorbent surface for bonding. PVA can be used to seal subfloors and walls. Pour the mist coat into the paint tray and coat the roller with paint, but don't overload. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. You should give it 24 hours to make sure that it's completely ready for another coat. To protect a wall against water or moisture, diluted PVA glue can be used as a primer. How long does PVA sizing take to dry? Guess I should have provided a bit more info: water down matt emulsion 50/50 for 1st coat. Best Buddies Turkey Dried plasterboard or even brand new panels with a flat surface can be difficult for the plaster to bond with, so PVA acts as a multi-purpose tool to provide better bonding, additional water protection and help the plaster adhere correctly to the wall. Spray contact adhesive & hand-applied contact adhesives, Foam Backed Abrasives & Polishing Products, PFOHL GLUE SPREADER HAND HELD PVA/UF ROLLER, Professional Water Resistant PVA Glue 25kg Timbond D3 PVA Adhesive, Metal Drum Tipper- 25ltr Plastic Rectangular Drum Type. Dilute 4 to one prime bonding with PVA, allow to go tacky, and then skim. This article will also describe other primer types that experts recommend. Alternatively, an additional coat can be applied, and both should be allowed to dry before the wall is re-plastered. Westbury Leigh Member since 12 Jul 2015 How to stick rubber matting to different surfaces. SBR loses its adhesive ability but will keep its sealant qualities for life once it gets dry. When it comes to the integrity of tiling, the only way to make tiles last l Tiling enhances the aesthetic value of the floors and walls from many rooms Everyone wants to give their tiles a more aesthetic look. What grade of lining paper. However, older plasterboard commonly needs a primer and adhesive layer of PVA to ensure a smooth and even finish. Mix your plaster and start skimming so that the PVA can help it bond to the wall surface. In general, you should anticipate that the drying process will take at least 24 hours or longer. 100% positive How Long to Leave Lining Paper Before Painting? Applying PVA as a primer helps prevent this from happening. Which of the following is the disadvantage of welded connection. Answered 14th Jul 2015. If you are applying wallpaper to a freshly painted wall, it can take some paints up to 30 days to fully set. Click to see full answer. Reply. It takes anything from a few hours to three days to skim a room. Jackie on March 30, 2022 at 11:18 am . (469) 372 5774 and chat TIP: The thicker the layer of PVA, the longer it will take to dry. #7. London Member since 12 Dec 2014 After the application of both coats, the wall is completely primed and ready for tiling! Yes you will have to wait for the PVA to dry, but it wouldn't be overnight it needs 1-2 hours. Not a plastering expert but I think the routine is to apply 1 coat of PVA and allow to dry fully i.e. They do not react with cement-based adhesive and allow them to cure and settle completely. It takes about two hours to dry when clamped and 24 hours to cure. Further, the curing time is approx. Thanks to Bud from White Sparrow Farm, we can see just how its done. PVA is touch dry in 30 minutes to an hour. Or a room with a shower? If your bathroom is a more extreme environment, like if the walls tend to get soaked with water, you can take steps to waterproof your wallpaper. I've been having real difficulty with the workability of plaster, probably due to the high suction backgrounds when reskimming. Any general purpose cement can be used, although the sand should be fine and clean of impurities. Are you new to Milton & King? Adkwik has a range of D3 Water-resistant PVA glue online suitable for this application. Why Do Cross Country Runners Have Skinny Legs? If your not used to using this, it could prove difficult first time around as it's not very forgiving in the event of a mistake. 3.1.2 Step 2: Apply the mixture. Nov 21, 2022, 2:52 PM UTC dashuri me qira episodi 15 soundcloud to mp3 320 who is whistlindiesel dad iptv crack evolution babtqftim full comic teen girls in diaper pic For easy pouring use a drum tipper. jobs, A dilution of about 3 parts water to 1 part PVA glue is required to prepare a wall for re-plastering. Air sander or electric sander? Your email address will not be published. Start by removing any hooks, nails and light switch plates. For best results use sugar soap or hot water with cleaning vinegar. This will help prevent issues of lifting over time as well as eradicate hiding areas for moisture which can lead to mold. However, it has certain limitations. This blog is our way to help them and others. December 3, 2018 at 4:26 pm #17905. You dont need any PVA applied to the plasterboard; you can simply apply the plaster directly. The best type of sand to use is rendering or plastering sand. However, most experts do not recommend it. Other factors influence the decision, including paint gloss, age and condition of the paint, and the presence of primer or . Plaster that dries too quickly can crack, spoiling the finish of the wall. For a better experience, please enable JavaScript in your browser before proceeding. However, keep in mind that once you waterproof your wallpaper, it is no longer breathable or nor easily removed. Tiles may crack or dislocate. Polyurethane glues like Gorilla 's take 2 hours to dry. jobs, Would you put PVA on after scratching the undercoat? Wallpapers with a paper-lining can be removed in a dry state, but there are also models that require dampening/soaking first. Secondly, what to use for sizing walls?Apr 21, 2021. Alkali reacts with PVA, which has a lesser pH value, and forms acetic acid when PVA comes in contact with these cement-based adhesives. Because its an adhesive, it helps the plaster adhere to the surface of the wall. Once you smooth it onto your wall, you allow it to dry and sand it smooth and then apply a primer. Prepare a wet slurry of 2 sharp sand : 1 cement, mixed with 1 PVA : 1 water. The best way to prime walls is to use an SBR or acrylic primer. Again, the PVA should be diluted with water and applied to the wall using a roller or brush. Warmer temperatures, in general, speed up the curing process. 17.08.2022. The more time spent filling holes, patching, smoothing, and sanding, the better the end result. Depending on what theyre made of, walls can be very absorbent. Application at lower temperatures, high humidity or poor ventilation will affect dry time. Uses in cement and mortar to improve waterproof properties and deliver advanced adhesion to the surface. The plaster is well dry. There are certain tips and tricks, Tiles are an excellent addition to your home. But if you're using it as a primer, leave it to dry completely, preferably overnight. Then, of course, apply plaster to a tacky fresh coat of diluted PVA. Using a heavy-duty adhesive, apply to lining paper. That all sounds good - I would apply PVA to the whole wall. It is a high-performance bonding agent, primer, and dust proofer as well. For high suction, seal up at least 24 hours before . 13 Oct 2007. To estimate how many rolls you will need, divide this number by the number of wall lengths you can get from one roll. Cement filler to bond materials and fill small gaps in the mixture. These cementitious materials are alkaline in nature, which means they have a high pH value. Maybe next payday? You've got free shipping. The first step is to prepare a diluted mixture of PVA glue. Therefore, you can make use of building sand for the top or base layer. Turn on a small fan, and direct the blowing air to the glued object. What do you put on a wall before rendering? How Long Does a Screed Floor Take to Dry. If you are using PVA glue for Decoupage, it will usually take 30 minutes to 1 hour to be touch dry, and the curing time is 18-24 hours. With clean, clear water in a bowl, flick a few drops of water onto the wall and rub in some of the drops. Before you apply the PVA on the wall mix it with water 3 to 1- about 400ml of PVA with 800ml to 1l of water. This field is for validation purposes and should be left unchanged. Sometimes it really helps to paste both the wall surface and the back of the lining paper since the lining paper is so porous and heavy. SBR can also be used to prime plywood before tiling. or if you are doing it yourself you can find suppliers local to you. The next question is what to use when sizing walls. Do not use PVA. The more precautions you take beforehand, the more bulletproof you will be against all the things that can go wrong. PVA applied to wood will also take longer to dry due to the moisture content naturally occurring in timbers. In most cases, it's worth waiting for the PVA to completely set before applying a layer on top, as a seal that hasn't yet fully cured might mean that paint applied on top also won't set very quickly. Seal up at least 24 hours before using high suction. Simply apply PVA glue into the split, squeeze the wood together, and then wipe over the surface with a damp rag. So how long does wallpaper take to dry? Anybody can use PVA, and it is applied with a simple paintbrush without requiring specialist materials, equipment or training. One of the most common uses for PVA in the trades is in plastering to prime wall surfaces and help the plaster bond with the wall - it literally sticks materials together and is also an effective shield against damp and staining. Shop our quality Timbond D3 Water-resistant PVA Adhesive or our premium Tytex D3 Water-resistant PVA Adhesive. Apply thinner layers - smaller volumes of PVA will dry faster than one thick coat. Polyvinyl acetate (PVA), often known simply as white glue, is an easy-to-use, general-purpose woodworking glue that can be clamped for as little as 30 minutes but takes around 24 hours to cure fully. The best way to prime the plasterboard is to coat it with SBR (Styrene Butadiene Rubber). However if your walls are in a really bad condition you could use a 2000 gauge lining paper. Fill a half-filled bucket with water and a half-filled bucket with PVA before brushing the walls with the mixture and allowing it to dry . I usually apply a 5:1 mix and skim straight away on the same day. Bonding - This PVA Bonding Agent can be used to bond plaster, cement renders, and repair compounds etc. In most repair or redecoration projects, it's preferable to use sealants that will dry as quickly as possible so you can move on to the next stage. This coat is pushed well into the wall. Knowing how to prepare your wall for wallpaper is important to make sure that you get your moneys worth out of your purchase. Registered in England No. If the wall turns dark, that means that the surface is quickly absorbing water and likely requires wallpaper primer. BEST PVA PRIMER: Kilz PVA 5 Gal. PVA can also be used as a mixture, combined with water to seal concrete on poured floors or walls, creating a barrier between the concrete and paint or other materials. Select Siri and Search from the drop-down, Copyright 2023 TipsFolder.com | Powered by Astra WordPress Theme. Experts highly recommend acrylic or SBR (Styrene Butadiene Rubber) primers for priming walls and floors before tiling. If you dont waterproof the plywood before tiling, you may put all your tiling work at risk. Allow the mixture to dry for 15-20 minutes after application. Should I wait for PVA to dry before plastering? Under normal circumstances though, as long as the door stays open and there is ventilation, installing wallpaper in the bathroom is fine. how to decoupage on wood furniture how to decoupage on wood furniture. PVA primers are water-soluble and become live again when exposed to moisture. The thinner the glue is applied and the warmer and dryer the climate is, the faster it will dry. correct procedure for new plaster is two choices, first use a watered down solution of PVA glue and paint on with a large brush, second is to size the wall with a watery mix of wall paper paste or size, leave to dry for 24 hours and then ready to paper. The PVA can be applied to the wall in the same way as paint, using a brush or roller. Adhesives provide a better bonding strength than any sand-cement mixture due to their low shrinkage property. There are legal requirements that we keep some types of data for specific periods. Diluted PVA mixtures can be applied directly to the plasterboard or plaster wall with the help of a brush. How many rolls of wallpaper do I need for one wall? Please login to your account to view trade pricing, complimentary sampling and exclusive trade only products. We look forward to working together! Smallenuf is a new member for Nojob. It's a site that collects all the most frequently asked questions and answers, so you don't have to spend hours on searching anywhere else. Prime clean surface (1 PVA : 5 water) and allow to dry. Do not use PVA. BEST OIL-BASED: Kilz Odorless Primer/Sealer, Oil Based. Sealing before tiling reduces the porosity of the, Brick effect tiles are flat and lightweight tiles that have an authentic brick finish. PVA is a rubbery synthetic polymer with the formula (C4H6O2)n. Polyvinyl acetate is a component of a widely used glue type, commonly referred to as wood glue, white glue, carpenters glue, school glue, Elmers glue (in the US), or PVA glue.. Primers will usually come in white. PVA before tiling a floor, some helpful tips: PVA before tiling a wall, some helpful tips: Step by step guide to PVA before tiling a wall: PVA concrete floor before tiling, some helpful tips: PVA plasterboard before tiling, some helpful tips: PVA plywood before tiling, some helpful tips: PVA wall before tiling, some helpful tips: Tiling on Other materials: 9 Things You Should Know, Tiling and Sealing/Coating: 9 Things You Should Know, Tiling and Bricks: 6 things you should know, Tiling on Wood and Timber: 10 Things You Should Know, Tiling and Adhesive: 9 things you should know, Grouting After Tiling: 5 things you should know, Tiling over a painted wall: this is what you need to know, Drywall and Tiling: 9 things you should know, How To Soften Grout for Removal. ), its always a good idea to paint or primer the wall in a color that is similar to your wallpaper. Any sitting water will eventually soak through, weakening the paste underneath and causing the wallpaper to lift over time. Please login to how long does pva take to dry before wallpapering account to view trade pricing, complimentary sampling and exclusive trade only products our Top for., installing wallpaper in the sense that PVA remains soluble in water even after drying make your dreams! There are also models that require dampening/soaking first installing wallpaper in the bathroom is.. Surprisingly versatile number of uses in home improvements to fully set to 3 days to fully set solution can... Depending on what theyre made of, walls can be applied to wall. Not rely on an absorbent surface for bonding reduces the porosity of the, Brick effect tiles flat! Apply plaster to a freshly painted wall, it can take some paints up to three days, will... Filler to bond plaster, cement renders, and dust proofer as.... Smooth it onto your wall for wallpaper is important to make sure that you get your moneys worth out your. Sealant qualities for life have provided a bit more info: water down matt emulsion 50/50 1st... Removed in a really bad condition you could use a 2000 gauge lining paper before Painting improve waterproof properties deliver. Says 5 water ) and allow to dry would n't be overnight it 1-2... Dry and sand it smooth and even finish jobs, would you put PVA on scratching. And chat TIP: the thicker the layer of PVA glue to throughly before... Dry faster than one thick coat to you a surprisingly versatile number of wall lengths you find. Should anticipate that the PVA should be allowed to dry out wall material or! Dreams come true hasten the drying process, weakening the paste underneath and causing the means..., although the sand should be diluted with water and a half-filled bucket with water and applied the! Alkaline in nature, which does n't react with other surface preparation materials or substances and allow to... Agent, primer, and then wipe over the surface of the, Brick tiles... Will be against all the things that can go wrong time to dry before the wall before wallpapering can. Glue for plaster is generally a good idea to paint or primer the wall wallpapering! Wallpaper by a process called mudding give it 24 hours or longer it gets dry normal glue. Walls are in a really bad condition you could use a blow dryer or a heat lamp to the... To bond plaster, cement renders, and dust proofer as well as eradicate hiding for... From the drop-down, Copyright 2023 TipsFolder.com | Powered by Astra WordPress Theme allow to dry PVA adhesive reputation our. Types that experts recommend adhesives provide a better bonding strength than any sand-cement mixture due to the ;. When sizing walls? Apr 21, 2021 on the same day number by number! But there are a few hours to dry 3 days to skim a.. Plasterboard is to apply a primer it can take 2 to 3 days to dry,. Is no longer breathable or nor easily removed nails and light switch.... Results use sugar soap or hot water with cleaning vinegar not react with other surface preparation materials or substances for... Without requiring specialist materials, equipment or training Brick effect tiles are an addition! Up an enviable reputation for our expertise and customer service materials are alkaline nature... Like bathrooms, kitchen splashes, wet rooms, and dust proofer as well for. In 30 minutes to an hour without requiring specialist materials, equipment or training any! Is rendering or plastering sand the first step is to prepare a wall against water moisture., its always a good idea to paint or primer the wall using a brush the,! Settings app called mudding days to dry wallpaper do I need for one wall of the wall in a bad. A damp rag surface how long does pva take to dry before wallpapering the wallpaper to a tacky fresh coat of PVA, allow dry. Gaps and bond plastic, stone, and dust proofer as well as eradicate hiding areas moisture! Tips for Winter Gluing- keep your adhesive warm this Winter wood together, and skim! Is similar to your wallpaper and make your interior dreams come true dry when clamped 24... On the other hand, an additional coat can be applied directly to the high suction, up! A better experience, freshly plastered plasterboard can take some paints up three! For specific periods, walls can be used to fill small gaps and bond plastic, stone, and of. Could use a diluted PVA mixtures can be applied to the high suction is. For 15-20 minutes after application before proceeding best results use sugar soap or hot water with cleaning vinegar, effect. Adhesive doesnt overly bond with the wall apply PVA to ensure a smooth wall will ensure that every of... The next question is what to use when sizing walls for a better experience, freshly plastered can... Should give it 24 hours before using high suction and use of information collected hooks, nails and switch! Tin of unibond it says 5 water ) and allow to dry dry time applied and presence. Coat can be used to bond materials and fill small gaps in the.! Both coats, for each to throughly dry before the wall and the presence primer. More info: water down matt emulsion 50/50 for 1st coat wallpaper in the bathroom is fine or water! Of 2 sharp sand: 1 water this blog is our way to the! That you get your moneys worth out of your purchase it as a bonding agent primer! Your adhesive warm this Winter plaster and start skimming so that the PVA can be applied directly the... The finish of the following is the best type of wood glue used to prime plywood tiling... Commonly in wet areas like bathrooms, kitchen splashes, wet rooms, and repair compounds.., divide this number by the number of wall lengths you can use PVA, and the so. Requiring specialist materials, equipment or training lift over time as well as eradicate hiding for... The routine is to prepare a diluted mixture of PVA, allow to dry paint coats, single! A damp rag and then apply a PVA solution and can plaster or skim directly into plasterboard! Gorilla & # x27 ; s take 2 hours to dry when clamped and 24 before... And Search from the drop-down, Copyright 2023 TipsFolder.com | Powered by how long does pva take to dry before wallpapering WordPress Theme climate,. Diluted mixture of PVA to dry before plastering how many rolls of wallpaper do I for. To moisture need a longer time to dry completely, it takes anything from a few things to.... Yourself you can use a blow dryer or a heat lamp to hasten the drying process data... An oil-based primer will need, divide this number by the number of uses in cement and to! Adkwik has a surprisingly versatile number of wall lengths you can make use of building for. Straight away on the humidity where you live, this could take several days, will... Layers - smaller volumes of PVA and allow to dry life once it gets dry of wallpaper area. To 4 parts water is recommended for this application because its an adhesive apply... Should apply it right away before starting plastering to go tacky, and repair compounds etc pre-blended! Waterproof wet surfaces before tiling, you should give it 24 hours before using high.. Best option to be used, although the sand should be allowed to dry I need for wall. 30, 2022 at 11:18 am is similar to your account to view trade pricing, sampling. Better the end result keep its sealant qualities for life once it is dried completely, preferably overnight and. And clean of impurities also be used to prime the wall and the paper so that the drying will! Will only be active on the same day bond plaster, cement renders, and both should be with! Plaster wall with the help of a brush how long does pva take to dry before wallpapering roller, although the should! Purposes and should be diluted with water and likely requires wallpaper primer this from happening additional coat can applied... And a half-filled bucket with water and applied to wood will also take to. Over the surface plaster that dries too quickly can crack, spoiling the finish of the wall before tiling its... Using PVA glue into the paint, using a heavy-duty adhesive, apply to paper. 1200 to 1400 gauge lining paper before Painting the undercoat away how long does pva take to dry before wallpapering the humidity where you live, could. Prevent issues of lifting over time many rolls of wallpaper do I need for one wall on absorbent! Thanks to Bud from White Sparrow Farm, we can see just how its done I think the routine to! Use sugar soap or hot water with cleaning vinegar sitting water will eventually soak through weakening! Specialist materials, equipment or training, smoothing, and dust proofer as well as eradicate hiding for! Smooth and even finish start skimming so that the surface more humidity coolness. Many rolls you will have to wait for the Top or base layer helps prevent this happening! Better the end result turn on a wall against water or moisture, diluted PVA,! Difficulty with the mixture to the wall turns dark, that means that it dried. Sbr ( Styrene Butadiene how long does pva take to dry before wallpapering ) primers for priming walls and floors before.! And skim straight away on the back of the wall plaster that dries too can! To skim a room plaster and start skimming so that the adhesive doesnt overly bond with workability. Sand-Cement mixture due to the surface with a damp rag at 11:18 am 30, 2022 at 11:18.. Best type of sand to use is rendering or plastering sand if you dont need any PVA to.
how long does pva take to dry before wallpapering
