"JohnB" wrote:

Hello JohnB

J Anyone any other solutions? Any mastic like substances that
J will stick to the butyl and give additional help? When
J completed it will be covered again and not subject to
J significant movement.

Butyl is one of the easier liners to patch.
http://www.midlandbutyl.co.uk/ (or .com) do a repair pack that should
do what you need.

Clean.

Apply.

Heat & Roll.

--
Simon Avery, Dartmoor, UK Ý http://www.digdilem.org/