Adiprene® LFP 1950A

Category: PUR-Ester/PPDI , Polyurethane (Polyester, PPDI)
Manufacturer: Chemtura
Trademark: Adiprene®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: qeuKpu_Adiprene-LFP-1950A.pdf
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ADIPRENE LFP 1950A is a PPDI-terminated polyester prepolymer having very low free PPDI content (typical < 0.1%) for easier management of health and safety during handling. This prepolymer is similar to ADIPRENE PP 1095H in composition and performance, while offering significant processing advantages including easier melting, lower viscosity, and increased pour life. ADIPRENE LFP 1950A yields a high performance 93-95 Shore A hardness elastomer when cured with VIBRACURE® A 250.

The high performance features of ADIPRENE LFP 1950A are due to PPDI (p-phenylene diisocyanate), a special building block that imparts exceptional properties to cast polyurethane elastomers. The unique combination of properties exhibited by PPDI-based prepolymers is superior to those available from standard prepolymers based on TDI or MDI.

Features of ADIPRENE LFP 1950A include:
  • Low Free PPDI Content
  • Lower Viscosity and Easier Melting
  • Increased Pour Life
  • Excellent Dynamics
  • Excellent Tensile/Tear Strength
  • Excellent Resilience
General Information
Features
  • Good Tear Strength
  • High Tensile Strength
  • Low Viscosity
  • Resilient
Processing Method
  • Casting
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.19g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A)93 to 95ASTM D2240
MechanicalNominal ValueUnitTest Method
Compressive Strength ASTM D695
    5% Strain 2.48MPa
    10% Strain 4.83MPa
    15% Strain 6.89MPa
    20% Strain 9.31MPa
    25% Strain 12.1MPa
ElastomersNominal ValueUnitTest Method
Tensile Stress ASTM D412
    100% Strain 9.65MPa
    300% Strain 13.8MPa
Tensile Strength 48.3MPaASTM D412
Tensile Elongation (Break)650%ASTM D412
Tear Strength (Split)28kN/mASTM D470
Compression Set ASTM D395B
    70°C, 22 hr 35%
    100°C, 22 hr 50%
Bayshore Resilience 57%ASTM D2632
ThermosetNominal ValueUnit
Pot Life 6.0min
Demold Time > 60min
Post Cure Time (116°C)16hr
Additional InformationNominal ValueUnit
Dynamic Properties
    Storage Modulus : 30°C 3.14E+8dynes/cm²
    Storage Modulus : 150°C 2.42E+8dynes/cm²
    Tangent Delta : 30°C 0.0180
    Tangent Delta : 150°C 0.0140
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