Under Belly Black Foam Sealant

Kevin2282

Senior Member
Joined
Oct 29, 2017
Messages
272
Location
AZ
I hope this helps anyone trying to seal or reseal holes in the belly material.......

I just finished welding in the Lippert V-Clip spring hanger reinforcements (wanted to do it, but did not need it yet) and I had to reseal the openings in the chloroplast belly material. I had to remove the OEM foam around each hanger so it would not burn during the welding process. I found everything needed at Lowes. The black foam is called Smartpond Waterfall Foam Sealant. It is water resistant so it should not wick up water like regular insulation foam might.

Since you have to turn the can upside down to use it I had to come up with a method to send the foam straight up into the openings. To the tube on the foam spray can I attached about 24" of 1/4" ID clear vinyl tubing with a 10" of 1/4" soft copper tubing as an end tip. This allowed me to bend the copper into a loose L shape so I could hold it and direct where the foam went. The vinyl tubing may have to be expanded with a punch or awl to fit over the spray foam can tube. It all was a tight fit so no foam leaked at the connection points on the hose assembly. I bought two cans, but one can was enough to seal all 6 openings in the belly material and a few other small spots.

Materials used:

https://www.lowes.com/pd/smartpond-Black-Pond-Foam-Sealer/1000846484

https://www.lowes.com/pd/EZ-FLO-1-4-in-Inner-Diameter-x-10-ft-PVC-Clear-Vinyl-Tubing/1000365025

https://www.lowes.com/pd/Mueller-St...pper-Handi-Coil-Soft-Copper-Tube-Coil/4742134

This method worked great and completely sealed the holes. I was able to trim the foam after 90 minutes since some of it was pretty thick. Wear an old long sleeve shirt and eye protection. If you get any foam on your hands a little acetone (nail polish remover) will remove it quickly.

Kevin
 
People also have trouble identifying or finding the black caulking that manufacturers use under there. I use standard black silicone caulk from the big box stores and it also mates very well with the Coraplast. Between those two products you basically have an OEM looking solution for those that care.
 

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