Mastic X

Mastic X is a very high strength UV stable mastic, needing some 800 Newtons (180 pounds force) to break the bond of the mastic to the substrate. It can be applied onto most surfaces and has good surface tolerance.

Air cured, it will skin over in 15 minutes at room temperature with full cure coming after 24 hours. It has a ± 70% accommodated movement and 220% elongation at break. Highly flexible with an in service temperature of -40°C to +120°C (-40°F to +248°F), Mastic X is a great sealant and adhesive. Compared with other high performance adhesives and sealants, Mastic X is slower to cure but it retains its flexibility when the other systems become brittle.

It can be overcoated though please check with us first.

Available in 310ml or 380ml mastic tubes and applied using a standard mastic gun, the tubes can be provided with your label on them. Minimum quantities apply.

Mastic as a noun is thought to derive from the Greek or Latin for masticate, as mastic is an aromatic gum or resin that exudes from the bark of a Mediterranean tree.

A training session held by Blocksil showing Mastic X being applied.