Sealer for cable entry into RV

Landscape foam sealer

I use this. Looks very much like the stuff in my RV.

I use this RTV Silicone Sealant all the time around my Trailer and Vehicles... WALMART - True Value local hardware store

It is Black color...


google image

Roy Ken

It's probably Black Silkaflex 221 Sealant, or something similar.

labren wrote:
Do any of you know the name of the black sealer that the RV manufacturers use for sealing around cables as they are entering into various places on an RV during the build process?

"Black sealer"? :h Sorry, no idea what you're talking about, nor does anyone else considering the lack of response to your query. Most trailers I've seen have expanding foam around entry points for hoses, pipes, wires, etc.