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DIY Forum >> Painting, Decorating & Tiling Questions >> Prepping? https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1128333989 Message started by The_Trician on Oct 3rd, 2005, 11:06am |
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Title: Prepping? Post by The_Trician on Oct 3rd, 2005, 11:06am New w/shop - internal walls are bare thermalite blockwork. Was given a large 'trade tub' of emulsion and was thinking of rollering this onto the walls. Question - how to prep beforehand - Will it be ok to just mix up a solution of PVA and roller this onto the walls to seal first, then paint directly over the top in emulsion? Ta TT |
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Title: Re: Prepping? Post by hamilton on Oct 3rd, 2005, 4:41pm TT Methinks the PVA will just form a skin on the blocks as opposed to soaking in a bit. The paint will then be sitting on the PVA. I think I would thin the emulsion out a bit for the first coat. Don't know how big your workshop is, but the emulsion won't go very far, so be prepared to get some more. |
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Title: Re: Prepping? Post by The_Trician on Oct 3rd, 2005, 5:07pm Got a 5 gallon tub! Should this be enough? W/shop is roughly the size of a single garage. Ta TT |
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Title: Re: Prepping? Post by hamilton on Oct 3rd, 2005, 7:33pm Job done! ;D |
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Title: Re: Prepping? Post by sailfishoney on Oct 4th, 2005, 3:45am What is PVA? I here that so much on the forums. |
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Title: Re: Prepping? Post by hamilton on Oct 4th, 2005, 4:29pm At the end of the day (as they say) it is a water based glue. Many people think that you can use it to seal new plaster prior to painting, which is of course wrong, as it will form a skin and the plaster will not be able to 'breathe'. The paint will then sit on top instead of soaking into the plaster. Some people seal old plaster with it (diluted) prior to hanging wallpaper. Personaly I have never done this so will not comment on it's efficacy. I believe the wet trades bang some in their muck as a binding agent, other trades will no doubt comment on that. I never use the stuff as I don't think it has any use for a decorator. Bye the way Cait, I have always thought PVA stood for Poly Vinyl Acetate, but I could be wrong on that. :-/ |
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Title: Re: Prepping? Post by billythekid on Oct 4th, 2005, 8:28pm congrats on 100 posts sfh, and pva is like y'alls wood glue. (in fact its like ours too isn't it?? lol) btk |
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Title: Re: Prepping? Post by CWatters on Oct 5th, 2005, 1:40pm wrote on Oct 4th, 2005, 3:45am:
It's a type of water based glue. Typically used for gluing wood or paper. Usually white but dries almost clear in thin layers. Not all types are waterproof so best used indoors. Google says... http://palimpsest.stanford.edu/don/dt/dt2639.html polyvinyl acetate A vinyl resin, one of the clear, water-white, thermoplastic synthetic resins produced from its monomer by emulsion polymerization. Polyvinyl acetate, abbreviated PVA , has the advantage over the other resinous adhesives in that it is available in the form of an emulsion that is readily diluted with water, is easily applied, and is safe to use because it contains no flammable solvents. In addition, there is no need to use preservatives or fungicides because it does not deteriorate quickly and is unaffected by mold or fungi. The emulsion does slowly hydrolyze, however, and should not be stored for more than one or two years before use. Freezing also destroys the emulsion; therefore, precautions must be taken to avoid exposing it to temperatures near or below the freezing point. |
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Title: Re: Prepping? Post by Chaddy on Oct 5th, 2005, 9:27pm Quote:
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz ;) |
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Title: Re: Prepping? Post by woodsmith on Oct 6th, 2005, 10:03am wrote on Oct 5th, 2005, 9:27pm:
::) ;D See what make one person doze off can be of interest to someone else, namely me... I didn't know PVA had a one year shelf life, thanks for that Colin |
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Title: Re: Prepping? Post by JerryD on Oct 6th, 2005, 6:48pm wrote on Oct 5th, 2005, 1:40pm:
This is most interesting, I shall learn this 'off by heart'. That way I will no longer be boring at parties. If things get a little slow I shall just say "Anyone interested in PVA?".................. ;D ;) |
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Title: Re: Prepping? Post by woodsmith on Oct 6th, 2005, 6:58pm wrote on Oct 6th, 2005, 6:48pm:
Glad I'm not the only one ;), and the Christmas season will soon be upon us, with all those parties and opportunities to impress with our knowledge of PVA ;D |
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Title: Re: Prepping? Post by hamilton on Oct 6th, 2005, 7:56pm I don't think you are taking this seriously. ;) |
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Title: Re: Prepping? Post by JerryD on Oct 6th, 2005, 7:57pm wrote on Oct 6th, 2005, 6:58pm:
Too right! I'm going to 'gen up' on Gripfill too, that way I'll be the 'life and soul' of any gathering............. ;D ;) |
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Title: Re: Prepping? Post by Chaddy on Oct 6th, 2005, 10:26pm wrote on Oct 6th, 2005, 7:57pm:
;D ;D ;D Lol |
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Title: Re: Prepping? Post by Lurch on Oct 6th, 2005, 10:32pm wrote on Oct 6th, 2005, 10:03am:
Me neither. I'd better start glueing stuff together quick before this large tub of PVA goes off. |
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Title: Re: Prepping? Post by JerryD on Oct 7th, 2005, 12:14am Does PVA have a date on it then? I've never noticed one. It could have been on the merchants shelf a year before you buy it? |
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Title: Re: Prepping? Post by hamilton on Oct 7th, 2005, 10:23am It could have been on the merchants cold concrete floor as well. |
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Title: Re: Prepping? Post by paintycait on Oct 15th, 2005, 1:09am Sailfish, It's the same as your Elmer's glue..you get it in different strengths here varying from kidsafe paper glue through to industrial grades. Cait |
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