Description:

Bostik N49 polyurethane joint sealant primers for use on porous and non-porous substrates.

N49 primer is used for porous substrates including concrete, sandstone,AC compressed sheeting and any other materials that can handle a solvent-based primer.

Uses:

• Used for all porous substrates and immersed applications

Features & Benefits:

On some jobs, primers may not be necessary but they are highly recommended by Bostik for critical substrate adhesion.

They do a vital job of securing the sealant to the side of the joint so that when joint movement occurs, the primer stops the sealant letting go from the side of the joint.