N
NJD1977
Hi
Hope you can help. I employed a local tiler to do by bathroom with large format 600x300 Porcelain glazed tiles (9mm thick). He has finished the job and all looks great. He recommended I seal the grout so I bought some sealer...........then the worries began...............I asked him for the spec of the grout he had used so I could check compatibility of the sealer and he advised me he had used a Dunlop Wall Tile Grout CG1 in white. When I visited the Dunlop website they recommend a Flexible tile grout for Porcelain tiles to aid adhesion to the tile edges. I rang the Dunlop helpline and he advised that the basic CG1 wall tile grout is not recommended for Porcelain tiles without a flexible additive being added.
The grouted joints are 3mm and are showing no signs of lack of adhesion - they look very solid/full indeed and have been like that for 3 weeks now. There seems to be a lot of other CG1 compliant grouts on the market that advise they are suitable for use on Porcelain tiles.......in fact Dunlop are one of the few that seem to suggest their CG1 basic grout isn't suitable for Porcelain tiles.
The tiler has held his hands up and said, if he has used the wrong grout then it's his fault, although he said he's never had any problems from other customers using this same grout with porcelain tiles (this is just anecodtal though).
As the bathroom is now all finished, I have a huge dilemma - do I insist he rakes all the grout out and potentially damage existing tiles / bathroom fittings / ceiling etc. or can I assume the CG1 grout will be ok and press ahead with sealing.
Obviously the latter option is the preferred, but I don't know what long term risk this poses to the grout.
Many thanks for any advice / experiences on the subject.
Neil
Hope you can help. I employed a local tiler to do by bathroom with large format 600x300 Porcelain glazed tiles (9mm thick). He has finished the job and all looks great. He recommended I seal the grout so I bought some sealer...........then the worries began...............I asked him for the spec of the grout he had used so I could check compatibility of the sealer and he advised me he had used a Dunlop Wall Tile Grout CG1 in white. When I visited the Dunlop website they recommend a Flexible tile grout for Porcelain tiles to aid adhesion to the tile edges. I rang the Dunlop helpline and he advised that the basic CG1 wall tile grout is not recommended for Porcelain tiles without a flexible additive being added.
The grouted joints are 3mm and are showing no signs of lack of adhesion - they look very solid/full indeed and have been like that for 3 weeks now. There seems to be a lot of other CG1 compliant grouts on the market that advise they are suitable for use on Porcelain tiles.......in fact Dunlop are one of the few that seem to suggest their CG1 basic grout isn't suitable for Porcelain tiles.
The tiler has held his hands up and said, if he has used the wrong grout then it's his fault, although he said he's never had any problems from other customers using this same grout with porcelain tiles (this is just anecodtal though).
As the bathroom is now all finished, I have a huge dilemma - do I insist he rakes all the grout out and potentially damage existing tiles / bathroom fittings / ceiling etc. or can I assume the CG1 grout will be ok and press ahead with sealing.
Obviously the latter option is the preferred, but I don't know what long term risk this poses to the grout.
Many thanks for any advice / experiences on the subject.
Neil
