Adiprene® LFP 1950A Datasheet

Polyurethane (Polyester, PPDI)

Supplied by Chemtura Corporation

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Product Description
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  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
Features 
  • Good Tear Strength
  • High Tensile Strength
  • Low Viscosity
  • Resilient
 
Processing Method 
  • Casting
Physical
Nominal Value
Unit
Test Method
Density / Specific Gravity
 
ASTM D792
Mechanical
Nominal Value
Unit
Test Method
Compressive Strength
    ASTM D695
5% Strain
psi
 
10% Strain
psi
 
15% Strain
psi
 
20% Strain
psi
 
25% Strain
psi
 
Elastomers
Nominal Value
Unit
Test Method
Tensile Stress
    ASTM D412
100% Strain
psi
 
300% Strain
psi
 
Tensile Strength
psi
ASTM D412
Tensile Elongation (Break)
%
ASTM D412
Tear Strength (Split)
lbf/in
ASTM D470
Compression Set
    ASTM D395B
158°F, 22 hr
%
 
212°F, 22 hr
%
 
Bayshore Resilience
%
ASTM D2632
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore A)
 
ASTM D2240
Thermoset
Nominal Value
Unit
Test Method
Pot Life
min
 
Demold Time
min
 
Post Cure Time (241°F)
hr
 
Additional Information
Nominal Value
Unit
Test Method
Dynamic Properties
     
Storage Modulus : 86°F
dynes/cm²
 
Storage Modulus : 302°F
dynes/cm²
 
Tangent Delta : 86°F
 
 
Tangent Delta : 302°F
 
 
Features
Features may also be described by the following terms: Low Viscosity, High Tensile Strength, Good Tear Strength.
Available Documents
Technical Datasheet (English)
Notes
1Typical properties: these are not to be construed as specifications.
 
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