EPOCAST® 35 A/927

EPOCAST® 35 A/927 epoxy laminating system is a two-component, solvent-free material designed to perform at temperatures up to 300ºF (149°C). The medium-viscosity liquid laminating system readily wets glass fabrics; its long work life supports extended fabrication times for large composite repairs. EPOCAST® 35 A/927 epoxy laminating system is well-suited for repair or fabrication of laminated composite structures and other applications requiring good high-temperature properties. This system is qualified to BMS 8-214.

RTU Product Type: Laminating Resin System

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Laminating

Features: Excellent High Temperature Properties, High Temperature Performance, Long Working Life, Medium Viscosity

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Enhanced TDS

Identification & Functionality

Chemical Family
Function
Repair Material
RTU Product Type
Technologies
Product Families

Features & Benefits

Labeling Claims
Ready-to-Use Product Features
Key Features
  • High temperature performance
  • Long work life
Product Features
  • High temperature performance
  • Long work life

Applications & Uses

Application Area
Composites Processing Methods
Markets
Applications
Processing Information

Material temperatures should be above 18°C (65°F) when mixing. Mix both components thoroughly for several minutes to insure complete and uniform mixing.

Parameter

Value

Work life, 100 g at 25°C 4 - 5 hours

Typical cure cycles

Cure 1: 4 hours at 83°C
Cure 2: 2 hours at 121°C

Regulatory & Compliance

OEM Specifications

Technical Details & Test Data

Technical Data

Typical physical properties:

Unless otherwise stated, the data were determined with typical production batches using standard test methods. They are typical values only, and do not constitute a product specification.

Property Conditions Test Method Cure 1 Cure 2
Durometer hardness, Shore D - ASTM D2240 93 93
Flexural strength, 25°C, ksi (MPa) As cured ASTM D790 77.4 (534) 104.0 (717)
Flexural strength, 25°C, ksi (MPa) After 2 hours boiling water, 25°C ASTM D790 52.1 (359) 68.6 (473)
Flexural modulus, 25°C, ksi (MPa) As cured ASTM D790 3,021 (20,827) 3,801 (26,206)
Flexural modulus, 25°C, ksi (MPa) After 2 hours boiling water, 25°C ASTM D790 2,771 (19,103) 3,481 (24,000)
Compressive strength, 25°C, ksi (MPa) As cured ASTM D695 61.4 (423) 71.9 (496)
Compressive strength, 25°C, ksi (MPa) Tested at 149°C ASTM D695 2.0 (13.8) 3.4 (23.4)
Compressive modulus, 25°C, ksi (MPa) As cured ASTM D695 3,751 (25,862) 4,031 (27,793)
Compressive modulus, 25°C, ksi (MPa) Tested at 149°C ASTM D695 937 (6,462) 1,360 (9,379)

Tensile lap shear, Al-Al, as cured, at 25C, psi (MPa)

- ASTM D1002 - 1090 (7.5)
Processing Condition

Processing Data:

Parameter Value
Work life, 100 g at 25°C 4 - 5 hours
Typical cure cycles Cure 1: 4 hours at 83°C, or
Cure 2: 2 hours at 121°C

Material temperatures should be above 18°C (65°F) when mixing. Mix both components thoroughly for several minutes to insure complete and uniform mixing.

Typical Physical Properties
Property Test Method Cure 1 Cure 2
Durometer hardness, Shore D ASTM D2240 93 93
Flexural strength, 25°C, ksi (MPa) ASTM D790    
As cured 77.4 (534) 104.0 (717)
After 2 hours boiling water, 25°C 52.1 (359) 68.6 (473)
Flexural modulus, 25°C, ksi (MPa) ASTM D790    
As cured 3,021 (20,827) 3,801 (26,206)
After 2 hours boiling water, 25°C 2,771 (19,103) 3,481 (24,000)
Compressive strength, 25°C, ksi (MPa) ASTM D695    
As cured 61.4 (423) 71.9 (496)
Tested at 149°C 2.0 (13.8) 3.4 (23.4)
Compressive modulus, 25°C, ksi (MPa) ASTM D695    
As cured 3,751 (25,862) 4,031 (27,793)
Tested at 149°C 937 (6462) 1,360 (9379)
Tensile lap shear, Al-Al, as cured, at 25°C, psi (MPa) ASTM D1002 - 1090 (7.5)

Packaging & Availability

Regional Availability
  • Americas
  • Asia Pacific
  • Australia
  • EIMEA

Storage & Handling

Storage Conditions
  • EPOCAST® 35 A Resin and Hardener 927 should be stored in a dry place in the original sealed containers at temperatures between 2°C and 8°C (36°F and 46°F). After use, tightly reseal containers.
  • The products should not be exposed to direct sunlight.

Other

Physical Properties
ValueUnitsTest Method / Conditions
Density1.13 g/cm³g/cm³ASTM D792 at 25°C
Viscosity7000.0 cPscPsASTM D2196 at 25°C