What is "anti-wicking"

[George Miklas]

In the Spring, I am going to install an outdoor shower on my TT. What sort of "anti-wicking" do I need to apply to the exposed edge (fiberglass/plywood) after making my cut?

George

[George Miklas]

In the Spring, I am going to install an outdoor shower on my TT. What sort of "anti-wicking" do I need to apply to the exposed edge (fiberglass/plywood) after making my cut?

George

[Route 66]

Something like an exterior grade polyurethane finish/sealer would keep the water out. An exterior grade paint probably would work also. Both would be best, IMHO.

[Greenie]

Thin the sealer on the first coat so the sealer wicks into the wood - then apply a second coat unthinned.

[George Miklas]

Thanks to both Dirk and Greenie for your input. What thinner would I use to thin Polyurethane to a level needed for that first coat?

gm

[Route 66]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> What thinner would I use to thin Polyurethane to a level needed for that first coat?
</div></BLOCKQUOTE>

I would guess mineral spirits, but the polyurethane can should indicate what to use.

[Roy W.]

If you're going to install one of the commercially available outside showers, it installs in the cut out hole and will cover any wood exposed in the cut-out. I'd use sealant tape all the way around the shower flange, then maybe a neat narrow bead of silicone on the top and sides to help shed water.

[powerboatr]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Roy W.:
If you're going to install one of the commercially available outside showers, it installs in the cut out hole and will cover any wood exposed in the cut-out. I'd use sealant tape all the way around the shower flange, then maybe a neat narrow bead of silicone on the top and sides to help shed water. </div></BLOCKQUOTE>
yep mine was sealed from the outside but it still leaked inside and last summer we noticed some swelled wood, from moisture that got in somewhere ???? removed the whole thing, trimmed out the bad and sealed all the raw wood with a a good marine polysulfide deck sealant.
plan ahead, with polysulfide.... the 3m stuff 5000 wil stick FOREVER (almost)