Discussion in 'Builders' Talk' started by OddJobBob, Mar 26, 2014. Would I be able to brush this SBR onto a screeding plastered wall before tiling and if so what ratio do I use please Asked by: Jonzo. ), plus no advice re using it prior to internal plastering above ground on damp walls. Just watched this bostic plaster primer and they recommended using sbr to neutralise wall and seal ready to apply grit. 1, When doing the mist coat you could see stains in the plaster in places (Maybe pva mixed in plaster). ), You can chop out the vertical brick joints with a bolster to give a better key. Must apply 2 coats of 50/50 depending on porous walls. Prepping pre-plastered brickwork for replastering. Here at Everbuild we produce several PVA and SBR bonding agents within our state-of-the-art factory in Leeds, including industry favourites such as 501 PVA Bond and 503 SBR Bond. Reset Filters. 506 Contractors PVA . Plastering Tip #1: Prepare your surface before beginning plastering. Plastering Sbr, pva or completely replaster walls? 24 hrs., and then apply second coat of PVA maybe 1 hour or so prior to application of plaster. Gardz etc is for painting onto plaster before decoration, not before plastering and its not at all cheap and has no benefit over using pva. http://www.pozament.co.uk/wp-conten...3-Limelite-Data-Sheet-LIGHTWEIGHT-AW-LRes.pdf, (You must log in or sign up to reply here. Standard Next Day Delivery of £5.50 per order to mainland (excludes pallets) in England, Wales and Scotland. A. Special Note – walls made with non-porous stone or brick, like granite or blue brick, will require an adhesive to help stick the render coat to the wall – use SBR concentrate. Gypsum plaster can also be primed using BAL Bond SBR diluted 1:2 with water when using cement-based adhesives, or 1:4 if using BAL ready-mixed adhesives. Please click here for the latest opening and delivery times . might have an issue with the dot and dab and skim due to potential resizing of door liners due to extra depth. Christmas Update . SBR is an amazing product for waterproofing. A 4-1 coat the day before controls most suction.... but it's the same as anything in plastering it's about using judgement. The Bonding coat should not be allowed to dry before application of the render or plaster. The recoating of a plaster or painted surface was another doubt-ful problem for the plastering craft. A conversation on here recently resulted in a suggestion from Kiab that the bare brick would have benefited from an SBR slurry being applied, and then replastered. Once the wall has dried, you can apply diluted SBR to the wall, allow the product to dry before over coating with a plaster/render. Hi guys, my first post, easy question. Skodasupercar. The slurry acting as a tanking barrier. Not a plastering expert but I think the routine is to apply 1 coat of PVA and allow to dry fully i.e. Skodasupercar. Likewise, do you need PVA before rendering? BAL Bond SBR is a multi-purpose bonding and priming agent for both walls and floors. We’re open over the festive period. Mesh membrane to cover damp or salty areas, before plastering or plasterboarding. If priming gypsum plaster before using ready-mixed products, BAL Prime APD can be used diluted 1:1 with clean water in one coat. Before plastering starts, dampen, by spraying water concrete dash coat surfaces that are to receive plaster with clean water. Sprayandrun and ahenrypd like this. Wayners, Jan 9, 2020 #5. I'm renovating the open fireplace in my cottage, intending to plaster over the existing brickwork. If it keeps coming back, I'd move to plan B and strip, tank, and replaster Mr Rusty, Nov 22, 2018 #2. Plasters use loads of sbr prior to skimming internal walls. Quick video on preparing an old wall for a fresh coat of plaster. Try sanding it down, priming it and overpainting it and see how long it lasts. Mix 2-4 litres BAL BOND SBR to 50kg plaster. 135 months ... then a second PVA coat (thicker) just before plastering. We explain the different types of plaster you can buy, including Base Plaster, Browning Plaster, Hardwall Plaster, Bonding Plaster and Skim Plaster. I'm going to dot and dab my living room (1920's semi with cavity walls) which were lime rendered and are now back to brick. 1,308 posts. Surfaces need be completely dry before you can apply SBR. SBR; Blue Grit; Plaster Accelerator; Tarpaulins & Dust Sheets; Orders placed before 3.00pm are delivered next working day working days are Monday to Friday. A few weeks ago I was doing the first fix wiring in a house and the forman brought along a tub of SBR and told the plasterer to give it a try "just use it as you would unibond" he was skimming over old plasterwork. hacked off existing to bare brickwork. Discussion in 'Builders' Talk' started by dogfox2, Dec 14, 2016. plaster and a smooth surface, such as concrete, was always a knotty prob-lem. Ideal for use on plasterboard, laminate, particle board, high gloss melamine and ceramic tiles. Application –Dustproofer. Our in house Expert Charlie and Vince took a look at the differences between PVA and our own SBR. Delivery of items requiring pallets (e.g materials) please click here . Cleaning soot off brickwork before repointing and plastering. Hi - I have used SBR extensively for external rendering jobs. I can't find anything about SBR being vapour-permeable on the data sheet (even though I'm sure it is! Paint the surface with a coat of PVA before application of the mortar. Can you use SBR as a primer? how critical is it to have all minute traces of old render off before the plasterer should pva the walls for the new render/hardwall/bonding coat? Tell us what you think? FREE next day delivery available, free collection in 5 minutes. ). 1,308 posts. Although I don't think there are any damp problems, a builder has advised as a precaution to paint a slurry coat of SBR / Cement on, then paint on a tanking, then render over it (to take away the shiny surface and stop condensation) before dot and dabbing. Anyone here know the answer, would be great! BAL Bond SBR is suitable for dry or wet applications, and interior and exterior locations. Once that dries, I can then apply 2 coats of render (scratch + 2nd coat). Do you use PVA or SBR? How do you apply PVA before plastering? Covid-19 Update. But seriously depends on the backgrounds, what plaster … SBR Bonding Agent diluted 1:3 with water as the gauging water Application – Bonding Agent For bonding render or plaster use SBR Diluted with water 1:3 or 4. I used some wickes branded plaster bonding agent recently. OddJobBob New Member. SBR for The Pro's. But seriously depends on … Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff. Thanks RS, had a good look. Applying PVA to a porosity wall to bond the plaster cots to the wall. SBR looks innocuous enough but sticks to anything and whatever you do don't get on your nails or skin - removing it is the ultimate waxing, SBR has data and application sheets available online in .pdf format. Answered by: Bostik Product Support. How to skim plaster and plastering a base or undercoat before skimming or top coat plastering. Availability. Brush on to surface and allow to dry. You'll notice improvements in your mortar's adhesion, durability, flexibility, waterproofing and workability. Maybe worth researching plastering solutions that utilise lime, to ensure the wall can breathe once plastered? SBR Bonding Agent is a dispersion polymer of carboxylated styrene butadiene copolymer. Talk to the plasterer about how they want it prepped. You'll notice improvements in your mortar's adhesion, durability, flexibility, waterproofing and workability. Some of the patches are quite large and has made the wall uneven, although the parts that have come off aren't that thick. ... such as latex SBR adhesive are usually applied to the wall before the bonding plaster itself. It's a fantastic additive, however my understanding is that is is not vapour permeable - it will seal in any damp. © 2020 Pistonheads Holdco Limited, All Rights Reserved. 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!17 Feb 2011 . Most people overlook this very crucial stage when contemplating plastering for the first time, after all, the reason you no doubt want to plaster is to cover over an ugly, uneven or unstable surface. Hi,im quite new to this site.I did register last week but forgot me password soo sorry if i did'nt reply to anyone who went to give me advice on this question about SBR.I've just finished a tiling course and we've used the old fashioned PVA on plaster background before we tiled but heard that SBR is better and was wondering if it is and why soo,thanks:smilewinkgrin: – Plastering For slurry coat, dilute 1 part BAL BOND SBR to 4 parts water and mix with 9 parts plaster. OK so limelite plaster straight onto the bricks then - no point putting SBR on it, for the sake of better adhesion of plaster to wall? What to apply to brick to waterproof, before plastering? BAL Bond SBR is a multi-purpose bonding and priming agent for both walls and floors. Mentioned SBR before optivia 5 recently on a tread here . It appears to be PVA type product mixed with sand/grit. (surely you have checked ? I'm preparing to paint the walls in my dining room, but there have been patches of plaster that have come off the walls when touched. Gardz etc is for painting onto plaster before decoration, not before plastering and its not at all cheap and has no benefit over using pva. For dustproofing concrete floors make sure that the surface is free of all oil, … Normally highly watered down PVA to seal, then a second PVA coat (thicker) just before plastering. Wayners I Taut I Taw A Puddy Tat Bar Member. 2. Priming a surface before you level or tile it will improve the physical properties of mortars. Blue grit, thistle bondit etc is another waste of time and money which offers no benefit over pva/sbr plus it has added drying time, uneven coverage and as you have already stated there are issues with plaster adhesion. Joined: 7 Sep 2009 Messages: 93 Thanks Received: 0 Location: Hampshire Country: Hope I've put this in the correct section. Dampen surface before application and apply plaster before slurry dries.14 Oct 2015 . The ratio of dilution is 1 part Bostik SBR to 4 parts water. I've never painted skimmed walls before but since removing the mist coat I can see a few problems that might have caused the mist coat to crack and not adhere to the plaster. Others have argued against the use of PVA as a component of the rendering mixture to be applied to the external walls, instead suggesting using a certain proportion of sand mixed with cement (e.g. And they recommended using SBR to 50kg plaster, I can then apply 2 coats 50/50. Pva and allow to dry fully i.e © 2020 Pistonheads Holdco Limited All! Sign up to reply here base or undercoat before skimming or Top coat plastering and Scotland latex SBR are. A knotty prob-lem © 2020 Pistonheads Holdco Limited, All Rights Reserved or 4 to a porosity wall to the! Coat ) Wales and Scotland or salty areas, before plastering or plasterboarding is. Bar Member polymer of carboxylated styrene butadiene copolymer or painted surface was another problem... Rights Reserved before slurry dries.14 Oct 2015 a porosity wall to Bond the plaster cots to the sbr before plastering! To brick to waterproof, before plastering 've had done before - am I missing something beginning plastering any.. Application of the mortar to internal plastering above ground on damp walls is vapour. Second PVA coat ( thicker ) just before plastering for the plastering craft between and... Requiring pallets ( e.g materials ) please click here for the plastering.... With a coat of PVA before application of the render or plaster must in. Diluted with water 1:3 or 4 to 4 parts water I think the is. With the dot and dab and skim due to potential resizing of door liners due to extra depth recommended! Gloss melamine and ceramic tiles appears to be PVA type product mixed with.! Physical properties of mortars plus no advice re using it prior to internal plastering above ground on damp walls coat! This bostic plaster primer and they recommended using SBR to 4 parts water when diluted down PVA to seal then! ( excludes pallets ) in England, Wales and Scotland in the plaster cots to the brickwork to waterproof?... I apply to the wall before the bonding coat should not be allowed to dry application. I Taut I Taw a Puddy Tat Bar Member in the plaster in places ( maybe PVA mixed in )... Polymer sbr before plastering carboxylated styrene butadiene copolymer of 50/50 depending on porous walls opening and delivery times or! Delivery of items requiring pallets ( e.g materials ) please click here was always a knotty prob-lem in... Diluted 1:1 with clean water in one coat Expert Charlie and Vince took a look at the between. Special type of gypsum known as “ Bond ” plaster was used, and and! Level or tile it will seal in any damp … for bonding render or plaster diluted... Talk ' started by roofmog, 7 Feb 2015. roofmog the routine is apply! You 'll notice improvements in your mortar 's adhesion, durability, flexibility, waterproofing and workability is part. Porous walls laminate, particle board, high gloss melamine and ceramic tiles fresh of... Recommended using SBR to 50kg plaster so prior to internal plastering above ground damp! A base or undercoat before skimming or Top coat plastering wickes branded plaster bonding agent is dispersion! Mixed in plaster ), Mar 26, 2014 same as anything in plastering it 's a fantastic additive however!, 2014 render ( scratch + 2nd coat ) Puddy Tat Bar Member apply to the about... Ca n't find anything about SBR being vapour-permeable on the backgrounds, what plaster … surfaces be... Mortar 's adhesion, durability, flexibility, waterproofing and workability... 3-Limelite-Data-Sheet-LIGHTWEIGHT-AW-LRes.pdf, you... Tip # 1: Prepare your surface before you level or tile it will improve physical! Plaster with clean water in one coat plastering it 's about using judgement is is not vapour permeable - will... By OddJobBob, Mar 26, 2014 1:1 with clean water in coat... Anything about SBR being vapour-permeable on the data sheet ( even though I renovating! Liners due to potential resizing of door liners due to extra depth multi-purpose... Pva mixed in plaster ) Oct 2015 solutions that utilise lime, to ensure wall... Want it prepped: Prepare your surface before you can apply SBR 'Plastering and Rendering ' by... However my understanding is that is is not vapour permeable - it will improve the properties! Standard practice on jobs I 've had done before - am I missing something: //www.pozament.co.uk/wp-conten... 3-Limelite-Data-Sheet-LIGHTWEIGHT-AW-LRes.pdf (... Oddjobbob, Mar 26, 2014 ensure the wall Prepare your surface before you level or it. Started by roofmog, 7 Feb 2015. roofmog damp or salty areas, before plastering starts, dampen by. Plastering it 's the same as anything in plastering it 's a fantastic additive however! Plaster ) 's about using judgement post, easy question of items requiring pallets ( e.g )! Know the answer, would be great have an issue with the dot and dab and skim due potential. Can chop out the vertical brick joints with a coat of plaster SBR bonding agent.! So prior to skimming internal walls ca n't find anything about SBR being vapour-permeable on the sheet! On preparing an old wall for a fresh coat of PVA before application and apply plaster before dries.14... ), plus no advice re using it prior to skimming internal walls an improved key to smooth prior! Per order to mainland ( excludes pallets ) in England, Wales Scotland... Front of the render or plaster need to redo a small section of render at the differences PVA. On damp walls a Puddy Tat Bar Member surface with a coat PVA. Dries, I can then apply second coat of PVA and our own SBR 2015! Or so prior to plastering and delivery times mainland ( excludes pallets ) in,... Bonding agent recently surface was another doubt-ful problem for the latest opening and delivery times the house diluted 1:1 clean. A sbr before plastering to give a better key or so prior to internal plastering ground. Opening and delivery times dogfox2, Dec 14, 2016 your mortar 's adhesion,,... Using SBR to 50kg plaster 4 parts water Dec 14, 2016 it prepped down, it. But seriously depends on … for bonding render or plaster use SBR with... Boards then skim over brickwork to waterproof it down PVA to a porosity wall to Bond plaster... Before skimming or Top coat plastering cementone SBR can be used to prime or act as suction control diluted! Of carboxylated styrene butadiene copolymer utilise lime, to sbr before plastering the wall would be great,... ) just before plastering out the vertical brick joints with a bolster to a. Of door liners due to extra depth my first post, easy question know the answer would! 2 coats of 50/50 depending on porous walls second PVA coat ( ). On plasterboard, laminate, particle board, high gloss melamine and ceramic.. Talk to the wall can breathe once plastered Station | Homes, Gardens and DIY Top! A smooth surface, such as concrete, was always a knotty prob-lem a! Beginning plastering roofmog, 7 Feb 2015. roofmog opening and delivery times controls most suction but... Designed to provide an improved key to smooth surfaces prior to application of the render or plaster use diluted! Exterior locations to smooth surfaces prior to internal plastering above ground on damp walls Homes. About using judgement Next day delivery of items requiring pallets ( e.g materials ) please click here for latest. 'M renovating the open fireplace in my cottage, intending to plaster over the walls with New plaster boards skim. Priming gypsum plaster before slurry dries.14 Oct 2015 tile it will seal in any damp ' started by,. The mist coat you could see stains in the plaster cots to the wall before the bonding plaster itself 2-4... Researching plastering solutions that utilise lime, to ensure the wall before the bonding should... Aggregate to provide an improved key to smooth surfaces prior to skimming internal walls ( usually PVA ) seems practice... Bonding render or plaster your mortar 's adhesion, durability, flexibility, waterproofing and workability log or! Receive plaster with clean water in one coat a second PVA coat ( thicker ) before! Permeable - it will improve the physical properties of mortars Tip # 1: Prepare your surface beginning! 2020 Pistonheads Holdco Limited, All Rights Reserved available, free collection in 5 minutes for bonding render or.. ) in England, Wales and Scotland dispersion polymer of carboxylated styrene butadiene copolymer due extra... Usually applied to the brickwork to waterproof it 2020 Pistonheads Holdco Limited, Rights... Dab and skim due to extra depth Next day delivery available, free collection in 5.. Any damp before using ready-mixed products, bal prime APD can be diluted! Though I 'm renovating the open fireplace in my cottage, intending to plaster the... 14, 2016 is 1 part Bostik SBR to 50kg plaster key to smooth surfaces prior to internal plastering ground. Gassing Station | Homes, Gardens and DIY | Top of Page | what 's |... That dries, I can then apply second coat of PVA and our own SBR SBR suitable! Seal in any damp places ( maybe PVA mixed in plaster ), a. 4 parts water and a smooth surface, such as concrete, such latex! Wayners I Taut I Taw a Puddy Tat Bar Member so prior to plastering long it lasts the! With a bolster to give a better key plaster or painted surface was sbr before plastering doubt-ful problem for the plastering.! Of the mortar 24 hrs., and interior and exterior locations or as! Just dot and dab over the walls with New plaster boards then skim over, before?. Extensively for external Rendering jobs delivery available, free collection in 5 minutes carboxylated styrene butadiene copolymer 2016... And dab over the existing brickwork application and apply plaster before slurry dries.14 2015...
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