EPOCAST 1636
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- High-Density Casting Material
- High Temperature Potting Compound
- Self-Extinguishing Bonding Material
Product Description
EPOCAST 1636-A/B is a two-part, aluminum-filled epoxy syntactic potting compound for high-density and elevated-temperature applications. The medium-viscosity system mixes at 100:8 by weight and cures to a strong, machinable gray material. It is used to reinforce honeycomb structures and is qualified to BMS 5-28, Type 6. Typical cured data include compressive strengths up to 28.0 ksi (193 MPa), and the material is self-extinguishing under BSS-7230-F4. Its extended gel time, alternative room-temperature and heat-cure schedules, mechanical strength, and low measured fluid-immersion weight gain support demanding structural potting and reinforcement work.
Key features
- High-temperature compressive performance: Delivers a typical compressive strength of 28.0 ksi (193 MPa) when tested at 25°C after 14 days of exposure at 177°C.
- Controlled two-part processing: Features a 100:8 weight mix ratio, 29,000 cP mixed viscosity, and 120-minute gel time for a 50 g mass at 25°C.
- Qualified structural reinforcement: Used for honeycomb reinforcement, qualified to BMS 5-28, Type 6, and self-extinguishing under BSS-7230-F4.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical component and mixed-system properties. Values are provided for product evaluation and are not guaranteed specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Part A: gray; Part B: dark amber; mixed system: gray | — | Visual |
| Density | Part A: 1.73; Part B: 1.07; mixed system: 1.72 | g/cm³ | ASTM D792 |
| Viscosity | Part A: 38,000; Part B: 1,000; mixed system: 29,000 | cP | ASTM D2196 at 25°C |
| Mix ratio | 100:8 | Parts by weight | Part A resin to Part B hardener; mix thoroughly while minimizing air entrapment |
| Gel time | 120 | Minutes | ASTM D2471; 50 g mixed mass at 25°C |
| Material temperature before mixing | Above 18 | °C | Equivalent to above 65°F |
| Cure schedules | 7 days at 25°C; 90 minutes at 127°C; or 60 minutes at 177°C | — | For elevated-temperature cures, gel at 25°C and increase temperature approximately 3–4°C per minute to the target temperature |
| Shelf life | 1 | Year | Store dry in sealed original containers at 2–40°C and protect from direct sunlight; expiration may vary by customer specification |
After-processing / final-state properties
Typical cured properties are provided for product evaluation and are not specification values. Results depend on the stated cure, conditioning, substrate, and test temperature.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Compressive strength | 15.0 (103) | ksi (MPa) | ASTM D695; cured 7 days at 25°C |
| Compressive strength | 28.0 (193) | ksi (MPa) | ASTM D695; room-temperature gel followed by 1.5 hours at 121°C |
| Compressive strength after heat exposure | 28.0 (193) | ksi (MPa) | ASTM D695; tested at 25°C after 14 days at 177°C |
| Compressive strength at elevated temperature | 5.0 (34.5) | ksi (MPa) | ASTM D695; tested at 177°C after 14 days at 177°C |
| Compressive modulus | 800 (5,517) | ksi (MPa) | ASTM D695; cured 7 days at 25°C |
| Tensile lap shear | 2,000 (13.8) | psi (MPa) | ASTM D1002; etched aluminum-to-aluminum specimens |
| Flammability | Self-extinguishing | — | BSS-7230-F4 |
| Weight gain after immersion | <0.1 | % | ASTM D543; 24 hours at 25°C in TT-S-735 Type III test fluid, MIL-M-5606 hydraulic fluid, Skydrol hydraulic fluid, and distilled water |
