Discuss ratios for primer g on plasterboard/plywood in the British & UK Tiling Forum area at TilersForums.com.

B

Burnsy

yeah mate. so it doesn't need diluting? shall i use it neat on both the walls and floor? read conflicting advice as to whether primer g can be used on plywood. is it ok?

Yeah neat on the walls.

Is the floor being tanked? If not, then you wont need to use a primer on the face (bit your tiling) of the ply.

If the ply isnt already down then seal the back and the edges of the ply with neat primer. If its already down just make sure its dust fee and tile away with a suitable adhesive.

Im pretty sure that Primer G shouldnt be watered down? Might be wrong though.
 
D

DHTiling

Primer G can be diluted depending on the use.. i'e dust proofing floors etc..

Primer G is not suitable for priming ply back or sides.. it needs to be an SBR type primer ..:thumbsup:... but as burnsey stated above if tanking with a solution kit then the surfaces do need priming.. the instructions are always on the product you use..
 
B

Burnsy

One of the main reason we use an acrylic primer on walls is that it stops the gypsum in the plaster reacting with the cement in the adhesive (bagged adhesive) which can cause the tiles to de-bond. Is it called ettrignite Dave?

Tile adhesive bonds very to ply so no point in priming as technically wont do anything.

Cheers for the input on Prmer G Dave :thumbsup:. Not a big Mapei user really, not that readily available to me. always love their gear though
 

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ratios for primer g on plasterboard/plywood
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