Bostik Primer N49 Waterproofing Coating

About Bostik Primer N49 Waterproofing Coating

91 000 74051 Bostik N49 Primer is a primer designed for use with the Bostik polyurethane sealant range to ensure adhesion to porous substrates, particularly with water immersed applications. Bostik polyurethane sealants requiring the application of Bostik N49 Primer on porous substrates only are: - Bostik Seal N Flex 1 - Bostik Seal N Flex FC - Bostik Construction PU - Bostik Fireban One

Optimized Surface Preparation

Bostik Primer N49 is specially formulated for porous substrates, such as concrete, masonry, and unglazed tiles. By applying this primer, you create the ideal surface condition for polyurethane sealants, maximizing bond strength and extending the longevity of your sealing project. Its fast-drying and moisture-curing properties help streamline your workflow.


Hassle-Free Application

With its one-component formulation, Bostik Primer N49 requires no mixing-simply apply the liquid directly from the container to your prepared surface. Its quick drying time enables same-day continuation of waterproofing and sealant application, making it highly efficient for construction and industrial projects.