What do I do?

[flyinb501]

My friend and I have been installing our footholds the last couple days. They are in and we fiberglassed today. The problem is we never used 5200 to seal them in, and I just found out now that you're supposed to do this. What should we do now to ensure everything is water tight?

 

[MADMAT]

I have never used any 5200 on a foothold install.

Just resin and cloth and lots of it!

 

[SuperJETT]

Several thin layers of cloth/resin will do it.

 

[750SX]

I put two thin layers of cloth on mine. i think it should be good

 

[Matt_E]

I put two thin layers of cloth on mine. i think it should be good

Not enough to keep water out.

I found out last weekend that two layers of cloth are not watertight.
I glassed, then foamed. I had foam coming through the two cured layers.

 

[surferdude345]

Not enough to keep water out.

I found out last weekend that two layers of cloth are not watertight.
I glassed, then foamed. I had foam coming through the two cured layers.

Did you glue them in with epoxy first?

 

[Matt_E]

Just a general observation that two layers of cloth (with epoxy, of course) are not necessarily watertight.

I did not glue in the holds with epoxy. I just set them in place and glass over them.
Epoxy just adds weight and no strength. That glues it in plenty strong, especially after foaming.

 

[750SX]

Thanks Matt. I glued the holds in with epoxy first, then put 1 layer of 1708 biax over them in the bottom of the tray. That is the only thing that is sealing them in the bottom besides the epoxy between them and the hull. Then I put two layers of 8oz cloth over the seams. I think it should be good, but I may put two more layers on top just to be sure. Crap, I thought I was pretty much done. I did have the holds glassed in and glued in before I poured the foam, and none came out of the footholds anywhere.

How many layers do most people use of thin cloth?

 

[SuperjetSteve]

I used 2-3 on my 750

 

[flyinb501]

Yeah I missed the part in the instructions about the 5200 and then when I was glassing I was having the feeling that there is no way that this is going to be water tight. Maybe I'm being paranoid but if water gets in there that is a major problem. Installing these footholds has been a major bitch! We may just bondo everything. I don't know there's gotta be a good way to make sure everything is sealed.

 

[meatball]

I would never used 5200 on a foothold install. Sure it seals it, however epoxy will not stick to it at all. I start with a peanut butter mix of epoxy and milled fibers and slop that on the foothold "flanges" and then stick it in, let it sit, then put some more epoxy putty on and radius all edges (fiberglass will not tolerate 90 degree angles, it will crack) then I use 12 oz mat back, one layer, and I'm good.