Mastics, Sealants & Coatings – Protective Finishes for Insulation System Integrity

Our Mastics, Sealants & Coatings Collection includes a wide range of fluid-applied products designed to protect, seal, and enhance the performance of thermal insulation systems. These materials are essential for maintaining vapor barriers, resisting moisture ingress, and ensuring long-term durability across HVAC, plumbing, and industrial applications.

Product Overview

This collection features industry-trusted brands such as Foster®, Kaimann, and Rockwool, offering solutions for both internal and external insulation systems:

• Mastics
• Foster® 60-39 Monolar Mastic: Weatherproof coating for exterior insulation surfaces
• Foster® 90-66 Adhesive Coating: Combines bonding and sealing for lagging applications
• Kaifix ECplus Butt Joint Sealants: Self-adhesive joint covers for Kaiflex insulation
• Sealants
• Foster® 95-44 Elastolar Sealant: Flexible, moisture-resistant sealant for pipework and duct joints
• Rockwool Fire Rated Silicone Sealant: For fire-rated enclosures and service penetrations
• Mulcol Multisealant GR/A: Intumescent sealants for passive fire protection
• Coatings

• Foster® 30-36 Sealfas: Vapor-retardant encapsulant for insulation and hazardous materials
• Vi-Cryl® CP-10/CP-11: Protective coatings for fiberglass and mineral wool
• Chil-Perm® CP-30/CP-34: Vapor barrier coatings for rigid insulation systems

Applications

• Sealing insulation joints, terminations, and penetrations
• Protecting insulation from moisture, UV, and mechanical damage
• Enhancing vapor barrier continuity in HVAC and industrial systems
• Encapsulating hazardous materials and supporting fire-rated assemblies
• Supporting compliance with EN 13501-1, ASTM E84, and IMO standards

Performance Benefits

• Maintains system integrity and thermal performance
• Resists water, oil, chemicals, and temperature extremes
• Supports fire safety and vapor control
• Compatible with mineral wool, fiberglass, elastomeric, and rigid foam insulation
• Available in brush, spray, and trowel-grade formulations