Sorry.... RTV = room temperature vulcanizing, aka silicone.
Our mason said the tiles are attached with RTV/Silicone and then grout is used to fill in the spaces between the tiles.
Sorry.... RTV = room temperature vulcanizing, aka silicone.
Our mason said the tiles are attached with RTV/Silicone and then grout is used to fill in the spaces between the tiles.
I have posed this question myself recently. I've seen a fiberglass pool with tiling and it appeared to have been done completely in silicon grout. Someone gave me this link to a site that have directions and kits for installing tile.
http://www.fiberglassswimmingpooltiling.com/
I recently ordered adhesive to replace some tiles that had fallen off my fiberglass pool from fiberglassswimmingpooltiling.com. The adhesive they sent me was just a silicone sealant made by DOW. It said right on the back that it was not recommended for underwater use. They were unresponsive when I emailed them about it.
I have found a couple of products that seem to be specifically made for this application. One is made by Novagard and the other by Boss.