Belzona 2311 (SR Elastomer)

A fast curing, abrasion resistant polyurethane elastomer for high speed emergency repairs, rebuilding and coating of rubber components and metal surfaces. 

Belzona 2311 (SR Elastomer)

A 2-part polyurethane resin designed for a fast repair, rebuilding and coating of rubber and metal components. This flexible rubber repair material is designed for emergency and permanent applications where high build, durability, elasticity, high abrasion and tear resistance are required. This very fast cold curing material is easy to mix and apply without the need for specialist tools and it cures at room temperature eliminating the need for hot work.

Key benefits:

  • Outstanding protection against wear, impact and abrasion
  • Very fast cure for emergency repairs - repaired components back to service almost immediately
  • Cold curing - no hot work involved
  • Packaged in individual pocket sized sachets for an easy application
  • Excellent adhesion to a wide variety of substrates including natural rubber, nitrile, neoprene, SBR (Styrene Butadiene Rubber), polyurethane, PVC, steel, copper and concrete
  • Outstanding mechanical strength
  • Reduces health and safety risks as it is solvent-free
  • Excellent chemical resistance to a wide variety of chemicals
  • Good electrical resistance
  • Outstanding elongation (up to 450%)
  • Protection against erosion and corrosion

Applications for Belzona 2311 (SR Elastomer) include:

  • Emergency repair of rubber components
  • Repair of rubber coatings on floating hoses to provide long-term abrasion resistance with very minimal downtime
  • Cold curing alternative to vulcanized rubber repair of worn, split or torn areas of rubber components of conveyor belts
  • Durable impact and wear protection on pumps volutes and impellers
  • Simple repair of cracks of tyre sidewalls on heavy duty trucks
  • Fast repair of worn gasket seals and rubber rollers
Key technical data:
Working life at 25°C (77°F) 2 minutes
Time to full mechanical cure at 25°C (77°F) 50 minutes
Abrasion resistance - Taber resistance with 1kg load at 21°C (70°F) H18 Wheels (wet) - 45mm³ loss per 1,000 cycles
H18 Wheels (dry) - 109mm³ loss per 1,000 cycles
Shore A Hardness (ASTM D2240) 75
Elongation (ASTM D412 (Die C)) 450%
Volume capacity (75g unit) 66.5 cm³ (4.1 cu.in)
Adhesion (ASTM D429) 119 pli (2,125 kg/m) on mild steel
Bonds to Rubber, PVC, aluminium, copper, steel, stainless steel, cast iron, lead, glass, wood, most plastics and many more
Typical applications Coating, lining, filling, patch repairs and many more
Unit size 75g. Pack sizes may vary locally.

More information:

For more information about Belzona 2311 (SR Elastomer) contact us or find your local distributor.

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