Belzona 4521 (Magma-Flex Fluid)

A fast curing, 2-part flexible sealant designed to provide effective sealing of construction and expansion joints on concrete, stone, brick and other surfaces. This solvent free material is a cost effective and high performance alternative to conventional mastics and sealants, providing joints with up to 25% flexibility and outstanding  weather and chemical resistance. It does not require any hot work and cures quickly, ensuring a safe and easy application.

Key benefits:

• Provides expansion joint flexibility of up to 25%
• Downtime reduction due to its fast curing properties
• Reduced future maintenance and eliminates the need for expensive structural rebuild
• Reduced health and safety risks as it is solvent free
• Application and cure at room temperature – no hot work involved
• Excellent weather and chemical resistance against a wide range of chemicals
• Easy to mix and apply manually with no specialist tools required
• Excellent adhesion to surfaces including concrete, brick, stone and steel

Applications for Belzona 4521 (Magma-Flex Fluid) include:

• Expansion joints sealing on horizontal surfaces such as floors, bridges, roadways, car parks and manufacturing facilities
• Sealing of leaking joints in secondary containment areas