EPOCAST 52
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- Graphite Composite Laminating
- 66 to 93 deg C Vacuum-Bag Cure
- 177 deg C Maximum Service Temperature
Product Description
EPOCAST 52 A/B is a two-part epoxy laminating system for fabrication and repair of graphite composites. The blue Part A resin and straw-colored Part B hardener mix at 100:41 by weight or 2:1 by volume, producing an amber material with typical viscosity of 5,500 cP at 25 deg C. The system supports low-temperature vacuum-bag curing, good wetting, and hot-wet strength, with service capability up to 177 deg C. Typical cure cycles are three hours at 66 deg C or two hours at 93 deg C. Qualifications include AIMS 08-01-002-01, AIMS 08-02-002-01, and SAE AMS2980.
Key features
- Graphite Composite Laminating: The epoxy system is formulated for fabrication and repair of graphite composite structures.
- Low-Temperature Vacuum-Bag Cure: Typical cure cycles are three hours at 66 deg C or two hours at 93 deg C.
- Maximum Service Temperature: Maximum service temperature is 177 deg C within the stated hot-wet performance context.
Applications
Graphite-composite fabrication; composite repair; laminating; low-temperature vacuum-bag processing.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Typical Part A, Part B, and mixed-system properties from the exact Huntsman TDS.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | Blue / straw / amber | - | Part A / Part B / mixed system; visual |
| Density | 1.20 / 1.00 / 1.10 | g/cm3 | Part A / Part B / mixed system; ASTM D792 |
| Viscosity | 14,000 / 1,500 / 5,500 | cP | Part A / Part B / mixed system; 25 deg C; ASTM D2196 |
| Mix ratio | 100:41 | parts by weight | Part A resin:Part B hardener |
| Mix ratio | 2:1 | parts by volume | Part A resin:Part B hardener |
| Gel time | 3.5 to 5.5 | hours | Mixed system; 100 g at 25 deg C |
| Shelf life | 1 | year | Original sealed containers at 2 to 8 deg C |
After-processing / final-state properties
Typical laminate-system values with the stated cure and conditioning context; samples used 36% resin content on T300 3KPW.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Maximum service temperature | 177 | deg C | Typical system value after either listed cure |
| Short-beam shear strength | 7.7 | Ksi | At 25 deg C; 93 deg C cure |
| Wet short-beam shear strength | 7.4 | Ksi | At 80 deg C after stated wet conditioning; 93 deg C cure |
| Wet tensile strength | 18 | Ksi | At 71 deg C after stated wet conditioning; 93 deg C cure |
| Compression interlaminar shear | 8.6 | Ksi | At 25 deg C; 93 deg C cure |
| Glass transition temperature | 133 | deg C | After 3 hours at 66 deg C |
| Glass transition temperature | 155 | deg C | After 3 hours at 66 deg C plus 1 hour at 177 deg C |
