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#1
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Stripping PVA and masonary paint for exterior wall?
Here's the lowdown...
I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Many thanks, dean. |
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#2
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
In article ,
deano writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
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#3
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
Wallpaper steam stripper?
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#4
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
On 31 Oct, 09:15, (Andrew Gabriel) wrote:
In article , * * * writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!) |
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#5
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
On 1 Nov, 18:45, Rednadnerb wrote:
Wallpaper steam stripper? Yeah, you'd think it would, but I tried and it didn't... thanks for the suggestion though. |
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#6
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
deano wrote:
On 31 Oct, 09:15, (Andrew Gabriel) wrote: In article , writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!) Pressure washer should strip. Use high power close. It will take ages. Or get a grit blasting company to strip it. |
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#7
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
The Natural Philosopher wrote:
deano wrote: On 31 Oct, 09:15, (Andrew Gabriel) wrote: In article , writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!) Pressure washer should strip. Use high power close. It will take ages. Or get a grit blasting company to strip it. Or see the current "bitumastic paint on brick" thread |
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#8
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Stripping PVA and masonary paint for exterior wall?
On 7 Nov, 11:31, Stuart Noble wrote:
The Natural Philosopher wrote: deano wrote: On 31 Oct, 09:15, (Andrew Gabriel) wrote: In article , * * * writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!) Pressure washer should strip. Use high power close. It will take ages. Or get a grit blasting company to strip it. Or see the current "bitumastic paint on brick" thread That's a great link... http://www.stripperspaintremovers.com/index.htm I've contacted them to see what they have in the stripper department. Thanks. I know it will take ages for the jet washer to do the job, I will however consult a friend who does sandblasting and compare his price against that of buying the stripper and doing the graft. |
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#9
Posted to uk.d-i-y
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Stripping PVA and masonary paint for exterior wall?
deano wrote:
On 7 Nov, 11:31, Stuart Noble wrote: The Natural Philosopher wrote: deano wrote: On 31 Oct, 09:15, (Andrew Gabriel) wrote: In article , writes: Here's the lowdown... I rendered my garden wall to a smooth finish, then PVA'd it, then painted it with Leyland exterior masonary paint. The big mistake was PVAing it! Not allowing the wall to breathe through the paint layer and dry out after a wet spell. The result... large clusters of bubbling as parts of the PVA coating has laminated away from the render. The problem... getting the whole wall stripped, including areas where bubbling hasn't occurred and the paint layer is stuck fast to the render... I have tried scraping and sanding and even a blowtorch! Next step jet wash? I'm worried that if I don't get it all off it will continue to blister, even when I've repainted! Any suggestions to me getting this all off? Some kind of PVA eating solvent? Ordinary PVA softens with long exposure to water. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] sorry been away... So does a jet washer sound like a viable method? I can't otherwise see how I could soak the wall. Maybe connect my jet washer up to the hot water tap and the rear of my house (use this for washing the dog!) Pressure washer should strip. Use high power close. It will take ages. Or get a grit blasting company to strip it. Or see the current "bitumastic paint on brick" thread That's a great link... http://www.stripperspaintremovers.com/index.htm I've contacted them to see what they have in the stripper department. Thanks. I know it will take ages for the jet washer to do the job, I will however consult a friend who does sandblasting and compare his price against that of buying the stripper and doing the graft. IME the graft isn't too bad, you just need a *lot* of stripper |
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