TEROSON MS 939 FR – flame-retardant SMP adhesive and sealant, black

TEROSON® MS 939 FR – Flame-retardant SMP adhesive/sealant for versatile bonding and sealing applications

TEROSON MS 939 FR is a high-performance, one-component silane-modified polymer (SMP) adhesive and sealant that cures with moisture to form an elastic, durable bond. Free from solvents, isocyanates, silicones and PVC, this product is designed for applications where flame retardancy, mechanical strength and weather resistance are key requirements.

Its excellent adhesion to a wide range of substrates, combined with UV resistance and elastic properties, makes it ideal for both indoor and outdoor use. TEROSON MS 939 FR meets flame retardancy standards according to EN 45545-2 (R1 HL2, R7 HL3, R22/R23 HL2), making it suitable for use in the automotive, rail and construction industries.

Key Features:

• One-component SMP technology, moisture-curing

• Flame retardant (EN 45545-2 certified)

• Excellent UV and weather resistance

• High elasticity and mechanical strength

• Non-sagging and easy to apply

• Suitable for bonding dissimilar materials

• Paintable and compatible with many paint systems

• Solvent-free, isocyanate-free, silicone-free

Typical Applications:

• Vehicle construction (automotive, railway)

• Industrial assembly and sealing

• Interior and exterior applications

• Sealing joints that require flame resistance

Technical Data:

• Color: Black

• Density: ~1.45 g/cm³

• Shore A hardness: ~55

• Tensile strength: ~3.5 MPa

• Elongation at break: ~180%

• Cure rate: ~3 mm/24 h

• Temperature resistance: -40°C to +100°C (short-term: +120°C)

• Skin formation time: ~6–20 min

• Application temperature: +5°C to +40°C