PVA Glue - Spray Gun

[khamill]

Hi Guys

Looking to seal internal brick, large area.

Whats the best way to apply, would a spray gun be of any use, even a cheap electrical one, or the type that can be used as a pump to spray fences etc???

Cheers guys!

Also, whats the best way to go about it - Hoover Walls - Then Wash walls - Then Seal???

 

[joe-90]

Just use a roller.

 

[misterhelpful]

Personally, I would recommend using a specialist brick sealer, rather than PVA, as they are more washable. Any moisture contact with PVA runs the risk of re-activating it and causing sticky/flaky patches. That's not to say you can't use PVA if you prefer - just be aware of the possible downsides should you need to clean it.

As far as prep and application goes, I would brush with a stiff brush, vacuum and then wipe off any remaining dust with a wet sponge.
Allow to dry then use a brush and small roller to apply your choice of sealer. I wouldn't use a spray gun with PVA as it can block the nozzle. Brick sealer manufacturers will give the best application methods for their products in the instructions.

 

[khamill]

Hey thanks guys!

I was looking at PVA simply for cost effectiveness, and also was pointed towards it after some research and some guys in the building trade.

Its a massive space, with high roofs, and only have access with ladders, why i was looking at the spray gun. With the roller, I was worrying that it wouldn't completely get into the crevices between the brick.

Also, what would you guys say is the most cost effective/quickest/easiest way for a complete laymen.

Cheers again men!

 

[misterhelpful]

PVA will be a lot cheaper and will seal the brick but as I said earlier it has it's downsides.
I would use a roller to do the majority and a brush to do the nooks and crannies/pointing. You could try a spray gun, which would obviously be much quicker, but any lumps of PVA which haven't been thoroughly mixed may clog it up.

 

[khamill]

PVA will be a lot cheaper and will seal the brick but as I said earlier it has it's downsides.
I would use a roller to do the majority and a brush to do the nooks and crannies/pointing. You could try a spray gun, which would obviously be much quicker, but any lumps of PVA which haven't been thoroughly mixed may clog it up.

Thank you very much man, really appreciated!

 

[TheDec]

Polyvine do a stone and brick varnish, dries to a flat matt finish. Brilliant product.

Dec

 

[JohnD]

what is the effect you hope to gain by PVAing the brickwork?

you aren't hoping to ever be able to paint it, are you?