Adiprene® LFG 740D

Category: PUR-Ether/TDI , Polyurethane (Polyether, TDI)
Manufacturer: Chemtura
Trademark: Adiprene®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: t7o4kC_Adiprene-LFG-740D.pdf
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ADIPRENE LFG 740D is a TDI-terminated polyether prepolymer that, when cured with 4,4'-methylene-bis-(o-chloroaniline),MBCA, yields a 75 Shore D elastomer.

The features of ADIPRENE LFG 740D include:
  • Low Free TDI Content (below 0.1%)
  • Good High Temperature Dynamics
  • Low Viscosity

LFG 740D offers improved safety during handling and processing over conventional-type prepolymers due to the low content of free TDI, less than 0.1%.
General Information
Features
  • Low Viscosity
Processing Method
  • Casting
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.24g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore D)75ASTM D2240
MechanicalNominal ValueUnitTest Method
Compressive Strength ASTM D695
    5% Strain 8.96MPa
    10% Strain 20.7MPa
    15% Strain 29.6MPa
    20% Strain 39.6MPa
    25% Strain 49.6MPa
FilmsNominal ValueUnitTest Method
Trouser Tear Resistance 56.0N/mmASTM D1938
ElastomersNominal ValueUnitTest Method
Tensile Stress ASTM D412
    100% Strain 26.2MPa
    300% Strain 37.9MPa
Tensile Strength 41.4MPaASTM D412
Tensile Elongation (Break)320%ASTM D412
Tear Strength
    -- 1145kN/mASTM D624
    Split 19kN/mASTM D470
Compression Set (70°C, 22 hr)50%ASTM D395B
Bayshore Resilience 43%ASTM D2632
ThermosetNominal ValueUnit
Pot Life 2.0min
Demold Time 30min
Additional InformationNominal ValueUnit
Dynamic Properties
    Dynamic Modulus : 30°C 3.00E+9dynes/cm²
    Dynamic Modulus : 50°C 2.20E+9dynes/cm²
    Dynamic Modulus : 70°C 1.60E+9dynes/cm²
    Dynamic Modulus : 130°C 7.50E+8dynes/cm²
    Dynamic Modulus : 150°C 5.90E+8dynes/cm²
    Tangent : 30°C 0.0740
    Tangent : 50°C 0.0830
    Tangent : 70°C 0.0960
    Tangent : 130°C 0.0740
    Tangent : 150°C 0.0600
Uncured PropertiesNominal ValueUnit
Curing Time (100°C)16hr
Note Message
1 .Die C
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