Belzona 2141
ACR-Fluid Elastomer
A flexible cavitation and abrasion resistant polyurethane elastomer for the coating of metal and rubber components.
A 2-part polyurethane resin for protective coating of high-pressure surfaces against cavitation, abrasion, erosion and corrosion.
- SeriesBelzona 2000 Series
- Documents5
Overview of Belzona 2141
A 2-part polyurethane resin designed for the coating of metal and rubber components. This flexible rubber material is appropriate for coating extremely high localised pressure areas where abrasion, cavitation, erosion and corrosion resistance are required. This fluid 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
Engineered to resist cavitation damage at ultra-high velocities
Protects against erosion and corrosive attack
Cures at room temperature with no hot work or vulcanisation
Bonds to natural rubber, nitrile, neoprene, SBR, polyurethane, PVC, steel, copper and concrete
Meets ASTM D3623 requirements for cathodic disbondment in immersed service
No solvents, no shrinkage during cure
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Electrical & Power Generation Equipment
1 applicationEngines & Casings
1 applicationHeat Exchangers
1 applicationPumps
1 applicationShips & Maritime Structures
1 applicationTechnical Data
Mechanical Properties (ASTM D412 Die C, 7 day cure at 68°F/20°C)
- Tensile Strength
- 2779 psi / 19.16 MPa
- Tensile Modulus
- 113.1 psi / 0.78 MPa
- Elongation
- 658%
- Shore A Hardness (ASTM D2240)
- 87
- Tear Strength (ASTM D624)
- 463 pli / 8260 kg/m
Adhesion (ASTM D429 90° Peel)
- Mild Steel
- 180 pli / 3214 kg/m
- Belzona 2941 conditioner is required to achieve adhesion to metal substrates.
Cavitation Resistance (Modified ASTM G32 ultrasonic, 20 kHz)
- At 36 µm wave amplitude
- 0.07 mm³/hr volume loss
- At 50 µm wave amplitude
- 5.50 mm³/hr volume loss
Abrasion Resistance (Taber ASTM D4060, 1kg load)
- Wet (H18 wheels at 70°F/21°C)
- 39 mm³ loss per 1000 cycles
- Dry (H18 wheels at 70°F/21°C)
- 50 mm³ loss per 1000 cycles
Electrical Properties
- Dielectric Strength (ASTM D149)
- 12.39 kV/mm at 600 V/s
- Dielectric Constant (ASTM D150)
- 8.11 at 1.0 V and 50 Hz
- Volume Resistivity (ASTM D257)
- 4.00 × 10⁷ Ωcm at 500 V DC
Encapsulation Immersion Resistance
- Belzona 2141 in conjunction with Belzona 2941 and Belzona 8411 prevents corrosion on steel substrates in immersed conditions and can be peeled back when maintenance or inspection is required.
Working Life
- At 77°F (25°C)
- 13 minutes
Curing Time
Cure times will be reduced for thicker sections and extended for thinner applications. Allow to solidify for the times shown in the Belzona IFU before subjecting it to the conditions indicated.
Service Temperature Limits
Note: Belzona 2941 conditioner is required for maximum adhesion to metal surfaces.
- Anti-Cavitation Service
- Up to 104°F (40°C)
- Other Dry Applications
- Thermally stable up to 212°F (100°C)
Mixing & Application
Product PDFs
Gallery
Related Products
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