SIKA Primer 209D 250ml

SIKA® Primer 209D is a high-performance black primer specifically formulated for use with PMMA (Perspex) plastic windows on boats and marine craft. It is an essential preparation step when bonding or sealing acrylic windows, ensuring maximum adhesion, durability, and long-term performance in harsh marine environments.

Designed for use with Sika marine sealants and adhesives, Primer 209D promotes a strong, reliable bond between Perspex windows and the boat structure, helping to prevent leaks, movement, and premature seal failure. Its UV-protective properties also help shield bonded areas from sunlight degradation—ideal for exposed cabin and cockpit windows.

Ideal for:

• Bonding and sealing Perspex (PMMA) boat windows

• Cabin, coachroof, and portlight installations

• New installations or replacement window projects

Key features:

• Specifically developed for PMMA (Perspex) plastics

• Improves adhesion of marine sealants and adhesives

• Enhances weather, UV, and water resistance

• Trusted solution for professional and DIY marine window fitting