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.

 

The information, specifications, and materials provided with this product are for general informational purposes only and are subject to change without notice. The product is provided “as is” without any warranties, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. Users are responsible for ensuring the product is suitable for their intended application and for following all applicable safety guidelines and instructions.

The information, specifications, and materials accessible here may not reflect the most current version. Please use the Request a Document feature for the most current product documentation available.

RTU Product Type: Laminating Resin System

Product End Uses: Aerospace MRO Applications, Composite Fabrication, Lamination

Chemical Family: Epoxy & Epoxy Derivatives

Processing & Application Methods: Lamination

Product Features: Excellent High Temperature Properties, High Temperature Application, Long Service Life, Medium Viscosity

Enhanced TDS

Identification & Functionality

Chemical Family
Function
Syntactic Adhesive,Casting Resin
RTU Product Type
Technologies
Product Families

Features & Benefits

Labeling Claims
Product Features
Key Features
  • High temperature performance
  • Long work life
Product Features
  • High temperature performance
  • Long work life

Applications & Uses

Product End Uses
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

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)
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)

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.
Storage Conditions

EPOCAST® 35 A/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. Under these storage conditions, and when supplied under Huntsman standard certification, the products have a shelf life of 1 year (from date of shipment). The products should not be exposed to direct sunlight.

Other

Processing & Application Methods
Application Information
ValueUnitsTest Method / Conditions
Mix Ratio0.25%(W)Hardener : Resin
Physical Properties
ValueUnitsTest Method / Conditions
Density1.13g/cm³ASTM D792 at 25°C
Viscosity7000.0cPsASTM D2196 at 25°C