BJB Polyurethane L-3540 REV 1 A/B

About
BJB’s “L Series”, with its 20 to 35 minute work time, is perfect for manufacturing larger or more complex parts and molds. The L-3540 is a 40 Shore A material offering exceptional physical properties. You’ll find the 1:1 ratio to be extremely convenient whether you’re hand mixing or cartridge-dispensing with our CPE handheld dispense equipment. For faster work times consider BJB’s F-1 or M Series of urethane elastomers. RoHS/REACH compliant Vibration Dampening Industrial Rollers Plaster and Concrete Molds Over Molding Strain Reliefs&&

Product Description
GenericTSU
Material StatusCommercial: Active
Featuresnoise reduction
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density1.03g/cm³ASTM D792
Specific volume0.973cm³/g

elastic bodyNominal valueUnitTest method
tensile strength6.62MPaASTM D412
Tensile strain
fracture1100%ASTM D412
tear strength21.0kN/mASTM D624

Electrical performanceNominal valueUnitTest method
Dielectric constant
1 MHz5.20 ASTM D150
Dissipation factor
1 MHz0.051 ASTM D150

THERMALNominal valueUnitTest method
Thermosetting components
Component A按重量计算的混合比: 100, 按容量计算的混合比: 100 
Component B按重量计算的混合比: 100, 按容量计算的混合比: 100 
Storage period26wk
Thermosetting mixed viscosity
25℃1480cP
25℃1350cP
25℃1600cP
stripping time
25℃480 to 840min
Gelation time45.0 to 50.0min
working hours
25℃25.0 to 30.0min

Supplementary informationNominal valueUnitTest method
Curing time
25℃5.0 to 7.0day

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s A35 to 45 ASTM D2240
Tensile modulus1.21MPaASTM D412

Notes
1. Typical properties: these are not to be construed as specifications.
2. Part A, 77°F
3. Mixed
4. Part B
5. Part A
6. 100g mass
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