Collection: Mastics
Mastics Collection – Protective Coatings for Insulation Systems
Our Mastics Collection features a robust lineup of Foster® and Childers® mastics, designed to protect, seal, and encapsulate insulation systems across industrial, commercial, and marine environments. These coatings offer superior performance in moisture resistance, fire protection, and long-term durability—making them essential for...
Mastics Collection – Protective Coatings for Insulation Systems
Our Mastics Collection features a robust lineup of Foster® and Childers® mastics, designed to protect, seal, and encapsulate insulation systems across industrial, commercial, and marine environments. These coatings offer superior performance in moisture resistance, fire protection, and long-term durability—making them essential for demanding insulation applications.
Product Categories & Applications
1. Monolar Mastics – Heavy-Duty Sealing
- Foster® 60-39, 60-91, 60-90, 60-38
- Solvent-based, non-asbestos formulations
- Excellent water and weather resistance
- Ideal for sealing insulation on ducts, pipes, and vessels
- Available in grey or white, in 20L/25kg pails
- Sprayable variants: 60-95 (white), 60-96 (grey)
2. Sealfas Coatings & Encapsulants
- Foster® 30-36, 97-02
- Water-based, fire-resistant coatings
- Used for encapsulating insulation and asbestos-containing materials
- IMO-certified options for marine applications
- Available in white, with brush or spray application
3. Weatherite Mastics
- Foster® 36-10
- Designed for outdoor insulation protection
- UV-resistant and flexible in extreme temperatures
- Ideal for HVAC systems and exposed ductwork
4. Fireflex Coatings
- Foster® 30-52
- Available in white, grey, and black
- Fire-rated and suitable for high-risk environments
- Excellent adhesion to metal and insulation surfaces
5. Vapor Safe Coatings
- Foster® 30-90
- Creates a vapor-tight barrier over insulation
- Ideal for cold storage, chilled water lines, and cryogenic systems
- White finish with brush or spray application
6. Stackfas Mastics
- Foster® 60-44
- Designed for vertical stack applications
- High-build coating with excellent sag resistance
- Suitable for high-temperature and high-humidity environments
7. Fire-Resistant Mastics
- Foster® 65-05 & 65-06 F.R. C.I.
- High solids, weather-barrier mastics
- Replace conventional asphalt cutback mastics
- Ideal for low-temperature insulation systems
- Fire-resistant and suitable for outdoor service
8. Childers® CP-55
- Alu Grey finish
- Protective coating for thermal insulation
- Excellent adhesion and weather resistance
- Used in industrial and marine settings
Technical Benefits
- Application methods: brush, spray, or trowel
- Coverage: varies by product, typically 1–2 m² per liter depending on surface
- Dry film thickness: optimized for long-term protection
- VOC compliance: many products meet low-emission standards
- Certifications: IMO, ASTM E84, UL-rated options available
Sustainability & Safety
- Many mastics are halogen-free, asbestos-free, and low-VOC, supporting healthier indoor environments and compliance with green building standards like BREEAM, LEED, and DGNB.
- Fire-rated options enhance safety in high-risk zones, while vapor-tight coatings prevent condensation and mold growth.
Ideal Use Cases
- HVAC ductwork and piping insulation
- Marine and offshore insulation systems
- Cold storage and cryogenic applications
- Asbestos encapsulation and remediation
- Industrial plant insulation protection
- Vertical stacks and high-humidity zones