WET location covers: keep the foam gasket, or toss?

fixizinFebruary 10, 2011

These thin black foam gaskets don't look sturdy enough for the long-haul here in the intense sun, intense rain sub-tropics. A telco buddy turned me on to the excellent RTV silicone they use, called "B-Sealant"; skins quickly, to avoid dust, but remains uncured for a long working period, to facilitate mating of parts.

He says they use the stuff everywhere outdoors, on everything--caps, covers, those slit rubber ports with cables passing through, high amperage power cables, etc.--and it's good for 10+ years, REAL LIFE, not "caulk tube marketing years", lol. (Seriously, in what sheltered lab do they derive that "50 year" figure on the $1.99 latex caulk? Stuff goes from caulk-to-chalk in like 4 years in So-Fla...)

Thanks in advance.

Thank you for reporting this comment. Undo

If the box is really exposed it will not matter much.

Condensation forms no matter how well you seal them against liquid water entering.

The AHJ could gig you if you omit the supplied gasket.

    Bookmark   February 10, 2011 at 11:49AM
Thank you for reporting this comment. Undo

Good point, AHJs tend to see things one way--THEIRS... I was only thinking of the box-to-cover seal... there's also the GFCI-to-cover seal further in... don't want much/any goo on recep itself.

Gasket PLUS RTV it is! Thanks.

    Bookmark   February 11, 2011 at 2:20PM
Sign Up to comment
More Discussions
Electrical Problem.
My mom's house has a problem with the lights temporarily...
Debra Johnson
Power to shed
Looking to run one 20 amp circuit to my shed and I'm...
Two fans on same circuit in different rooms, can't get wiring right
So here's the situation. I have two ceiling fan/lights...
Outdoor subpanel as AC disconnect
Can we use an outdoor subpanel as an AC disconnect?...
Troubleshooting Kohler 12RES Problem
I have a Kohler 12RES generator with an RDT 100 Amp...
Sponsored Products
Aurora Ceiling Fan with Light by Modern Fan Company
$384.00 | Lumens
Wool Circles Medium 22 x 22 Pillow
$30.95 | Bellacor
Elementem | African Sunrise Wall Art
Home Decorators Indoor/Outdoor Area Rug: Home Decorators Collection Rugs Royal
$75.00 | Home Depot
Bover | Fora Outdoor Wall Light
Safavieh Paradise Chinese Floral Light Blue Ceramic Garden Stool
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™