Adhesives, Cements, Primers and Coatings

JM Single Ply Sealing Mastic

JM Single Ply Sealing Mastic is a one-part, gun grade butyl sealant. It is used to seal JM Single Ply Membranes and flashings to roof drains.

Cookies on

The Johns Manville website employs cookies to improve your user experience. We have updated our cookie policy to reflect changes in the law on cookies and tracking technologies used on websites. If you continue on this website, you will be providing your consent to our use of cookies.

I accept cookies from this site