Belzona 2131
D&A Fluid Elastomer
A flexible abrasion resistant polyurethane elastomer for the casting of rubber components and coating of metal and rubber surfaces.
A 2-part polyurethane resin for casting rubber components and coating metal and rubber surfaces.
- SeriesBelzona 2000 Series
- Documents5
Overview of Belzona 2131
A 2-part polyurethane resin designed for the coating of metal and rubber surfaces, as well as casting of new rubber components. This flexible rubber material is appropriate for applications where durability, elasticity, high abrasion and tear resistance are required. It is easy to mix and apply without the need for specialist tools and it cures at room temperature eliminating the need for hot work and vulcanisation.
Key Benefits
Outstanding protection against wear, impact and abrasion
Can be poured or injected into moulds for casting unique components
Cures at room temperature with no hot work or vulcanisation
Bonds to natural rubber, nitrile, neoprene, SBR, polyurethane, PVC, steel, copper and concrete
No solvents, no shrinkage during cure
Outstanding elongation enabling flexibility for moving and dynamic surfaces
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Solids Handling Machinery
3 applications- Pump impeller & casing wear protectionDurable impact and wear protection on pumps volutes and impellersLearn more
- Abrasion-resistant rubber liningsSurfacing rubber and metal components to provide durable abrasion resistanceLearn more
- Casting of replacement componentsCreation of drive couplingsLearn more
Gaskets, Seals & Shims
1 applicationTechnical Data
Mechanical Properties (ASTM D412 Die C)
- Tensile Strength (24 hr cure)
- 2460 psi / 17.0 MPa
- Tensile Strength (7 day cure)
- 2280 psi / 15.7 MPa
- Tensile Modulus (24 hr cure)
- 215 psi / 1.5 MPa
- Tensile Modulus (7 day cure)
- 205 psi / 1.4 MPa
- Elongation (24 hr cure)
- 500-600%
- Elongation (7 day cure)
- 400-500%
- Shore A Hardness (24 hr cure)
- 90
- Shore A Hardness (7 day cure)
- 93
- Tear Strength (ASTM D624)
- 385 pli / 6875 kg/m
- Compression Set (BS 903 part A6)
- 24% (30 min recovery)
Adhesion (ASTM D429 90° Peel, Grit Blasted Mild Steel)
- Peak Adhesion
- 186 pli / 3320 kg/m (Tape Failure)
Abrasion (Taber ASTM D4060, H18, 1kg load)
- Dry
- 30 mm³ loss per 1000 cycles (7 day cure)
- Wet
- 30 mm³ loss per 1000 cycles (7 day cure)
Electrical Properties
- Dielectric Strength (ASTM D149)
- 7.1 kV/mm at 500 V/s
- Volume Resistivity (ASTM D257)
- 2.30 × 10¹² Ωcm at 500 V DC
Working Life
- At 68°F (20°C)
- 12 minutes
Curing Time
Cure times will vary depending on ambient conditions; consult the Belzona IFU for specific details.
At 68°F (20°C)
- 24 hour cure
- Shore A 90
- 7 day cure
- Shore A 93 (full cure)
Service Temperature Limits
Note: Surface conditioning with Belzona 2911 (Elastomer QD Conditioner) or Belzona 2921 (Elastomer GP Conditioner) is required for proper adhesion.
- Dry Service Range
- -40°F to 194°F (-40°C to 90°C)
- Wet/Immersed Maximum
- 104°F (40°C)
Mixing & Application
Product PDFs
Gallery
Related Products
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