Bostik Seal N Flex 1

Product Overview

Bostik Seal N Flex 1 is a low-modulus, one-component, Class-A polyurethane sealant that, when cured, forms a tough and flexible seal able to withstand 100% (+ 50%) of the original installed joint width.

Recommended Uses

Interior surfaces Exterior surfaces Commercial applications Heavy commercial applications.


Precast panels Tilt-up panels Brickwork Blockwork Aluminium windows.


Granite Sandstone Marble GRC and CFC Fibreglass Plasterboard Concrete Plasterboard Fibre cement sheet Aluminium

Available as a 300mL cartridge or 600mL sausage in white, black, and grey.

Technical Data Sheet

Safety Data Sheet

Safety Data Sheet

Bostik Seal N Flex 1 Grey 300ml