Jump to content

Black Butyl Rubber Caulk


Recommended Posts

I was sliding around under the coach to put in my new hydraulic lines for a 6 point leveling system mod I am doing and noticed some opportunities to seal the belly material better around various openings and on the edges.


Is CRL Black 777 Butyl Rubber Sealant the stuff to use?




Link to comment
Share on other sites

That could work well. A lot depends upon where the opening is and how large it is. In some cases I like to use one of the expanding foam products, but if you do so use care to allow enough space for the foam's expansion. I would not use any silicone based caulking as silicone products do seal well, but once cured nothing will stick to them, not even more silicone so they must be removed 100% before making any repairs to the area.

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

RVers Online University


Our program provides accurate individual wheel weights for your RV, toad, and tow vehicle, and will help you trim the pounds if you need to.

RV Cable Grip

All the water you need...No matter where you go

Country Thunder Iowa

Nomad Internet

Rv Share

Dish For My RV.

RV Air.

Find out more or sign up for Escapees RV'ers Bootcamp.

Advertise your product or service here.

The Rvers- Now Streaming

RVTravel.com Logo

  • Create New...