Foster® 30-52 Fireflex Mastic is a water-based, fire-resistive mastic available in white, grey, and black, designed to provide excellent protection for thermal insulation and fireproofing applications. This versatile sealant is formulated by Foster for commercial use, ensuring a robust seal against fire and heat exposure. It is conveniently packaged in a 10-liter, 13kg pail for easy handling and application.

Specifications and Properties

• Product Type: Mastic
• Brand: Foster
• Base: Water-based
• Colors Available: White, Grey, Black
• Packaging: 10 ltr / 13kg pail
• Density: Typically 1.3 kg/liter
• Solids by Volume: Approximately 65%
• Service Temperature Range: -29°C to 121°C (-20°F to 250°F)
• Drying Time: Touch dry in 2-4 hours at 25°C (77°F) and 50% relative humidity
• VOC Content: Less than 50 grams per liter

Features and Application

• Fire-Resistive: Provides reliable protection in fireproofing applications.
• Water-Based: Environmentally friendly and easy to clean up.
• Multiple Colors: Available in white, grey, and black to match a variety of surfaces and aesthetics.
• Versatile Use: Suitable for both indoor and outdoor applications.
• Adhesion: Excellent adhesion to a wide range of construction materials.
• Application: Ideal for use on thermal insulation, fire stops, and as a sealant in various fire-rated assemblies.

To ensure optimal performance, apply Foster® 30-52 Fireflex Mastic following the manufacturer's product data sheet and safety guidelines.