PDA

View Full Version : Silicone (Acidic/non-acidic) vs Goop



metoo
06-01-2013, 08:08 PM
I was about to head out to buy some silicone to seal the brackets on the back of the boat. I've read to get non-acidic silicone. Why is that? I was thinking of using Amazing Goop, since I have it. It's does have a quite a smell.

Heaving Earth
06-01-2013, 08:11 PM
Uhm, why not use plumbers putty. It doesn't dry out and isn't permanent. I always stay away from silicone, especially if it ever needs paint. Fisheye galore

JimClark
06-01-2013, 10:16 PM
All my holes do not have any slop in them. I just make sure to seal them after drilling with thinned epoxy and have never worried about sealing them

Chilli
06-01-2013, 10:46 PM
I've used them all. Silicon, Goop, 3m 5200. I think even bathroom caulk. They all work fine. I bed down the hardware for waterproofing and to help hold it in place if the mounting screws loosen a little.

BHChieftain
06-02-2013, 12:11 AM
I use Shoe Goo. I've been told that silicon sealant makes repainting very difficult.

Chief

JrValente
06-02-2013, 12:18 AM
3m 5200. Is made for sealing below waterline and is a polyurethane base so it will paint up. It is not cheap though.

Cooper
06-02-2013, 01:20 PM
I've always used 100% silicon as a seal on hardware. Spread a little on and whipe any excess off after installation. But as mentioned above almost all will work. 3m also makes a rubber tape very similar to plumbers putty, it holds together a bit and is tough to get screws through but ,makes a very good seal around threads if mounting holes are sloppy.

rickwess
06-03-2013, 08:19 AM
I use 3M Marine Silicon. Just a very thin bead around the mounting hole on the hardware. Never had it squeeze out. Not worried about re-painting since the proper prep work will take care of any residual silicon.