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+-- Thread: Clearcoat over tile (exterior, UV) (/showthread.php?tid=7325500)
Clearcoat over tile (exterior, UV) - redrabbit - 11-23-2016
Final clear-coat over (brand new) exterior tile. (UV)
My client wants me to make 200 sq' of off-white tile..."look...old / aged / distressed", for a veranda deck (north-facing, mostly in shade).
I've already figured-out (and tested) how to "age" the off-white tile, using one thin (tinted) coat of West System epoxy, using their #207 clear hardener (for less yellowing).
This stuff sticks really really well to the already matte finish of the new untouched tile (in other words, the tile is matte out-of-the-box, not glossy)
My reason for posting, and question is.......
I know I'll need to top-coat the epoxy that I apply to the tile, otherwise it will eventually break down, and amber slightly.....so I need a clear-coat that has good UV inhibitors.
I also want it to have a matte finish.
What top-coat would be recommended ?
My considered choices so far are:
1) Marine-grade clear urethane (with UV protection) with a flattener additive (one-part, single-stage)
2) Marine-grade clear urethane (with UV protection) with a flattener additive (two-part, w/hardener)
3) Automotive clear urethane (UV) two-part, with flattener added.
4) Exterior tile sealer (matte) like found HERE.
Notes:
-- Thankfully, most clear-coats stick well to a scuffed epoxy surface.
-- I am applying this treatment to the tiles "before" they are installed....all 465 tiles !! (because it's a checker board pattern with black tiles, and the black tiles need no treatment)
-- I've been a painter for 30 years.
RE: Clearcoat over tile (exterior, UV) - tomsteve - 11-23-2016
id suggest contacting west system and find out what they suggest.
RE: Clearcoat over tile (exterior, UV) - redrabbit - 11-23-2016
Ahhhh, problem solved.
I noticed these are "cement tiles", not "ceramic tiles"....so epoxy is not necessary !! (yay)
I got smart, and spoke to the tile installer. He will be sealing all the tiles with a penetrating sealer after laying the tile, but before grouting (to prevent the grout from staining the cement tile) .
So I'll do a test on the tiles using the same sealer he will be using. (Glaze-n-Seal , natural look)
I was making things too complicated, but I learned a lot from doing research.
(Tomsteve...thanks......the ideas I had about topcoating epoxy came from the West System epoxy website.)
If these were ceramic fired tiles, the epoxy is a viable way to go, but this is not the case here.
I hope this post may help someone in the future.
It pays to do the research first.