EPIBOND 1210
Harmonization Code : 8529.90 | Parts solely or principally used for TV, radio, and transmission

Main features
- Low-Outgassing Epoxy Bonding
- 50 to 75-Minute Working Window
- Flexible Cured Adhesive
Product Description
EPIBOND® 1210 A-1/B Epoxy Adhesive is a two-part, tan epoxy adhesive with a semi-paste consistency and low-outgassing performance for spacecraft bonding applications. The 100:65 parts-by-weight mix provides a 50–75 minute work life at 25°C and cures either for 48 hours at 23–26°C or for 2 hours at 66°C. The system can be applied by brush, spatula, or automatic dispensing equipment. EPIBOND® 1210 B hardener may be increased to as much as 100 parts by weight per 100 parts resin when a more flexible bondline is required. The adhesive is intended for bonding metals, wood and wood products, glass, ceramics, most plastics, and other materials.
Key features
- Low-outgassing performance: Typical ASTM E595 results are 0.65% total mass loss and 0.01% collected volatile condensable material.
- Adjustable bondline flexibility: The hardener level may be increased from 65 to as much as 100 parts by weight per 100 parts resin for more flexible bonds.
- Flexible cure options: Cures at room temperature in 48 hours or with an accelerated 2-hour cure at 66°C.
Applications / Suitable for
- Spacecraft bonding applications
- Metal bonding
- Wood and wood-product bonding
- Glass and ceramic bonding
- Bonding most plastics
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Typical values at 25°C unless otherwise stated. These values do not constitute a product specification.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Density at 25°C | 1.5 / 1.00 / 1.30 | g/cm³ | ASTM D792; A-1 resin / B hardener / mixed system |
| Viscosity at 25°C | 250,000 / 30,000 / semi-paste | cP / cP / — | ASTM D2393; A-1 resin / B hardener / mixed system |
| Solids | 100 | % | ASTM D1644; mixed system |
| Mix ratio | 100:65 | Parts by weight | EPIBOND® 1210 A-1 resin : EPIBOND® 1210 B hardener |
| Work life | 50–75 | min | 100 g mixed mass at 25°C |
| Typical cure cycles | 48 h at 23–26°C; 2 h at 66°C | — | Typical room-temperature or accelerated cure options |
| Storage temperature | 2–40 | °C | Dry place in original sealed containers; protect from direct sunlight |
| Shelf life | 1 | year | From date of shipment under the specified storage conditions |
After-processing / final-state properties
Typical cured-system and bonded-joint values. Results depend on the stated substrate, temperature, exposure, and test method and do not constitute guaranteed specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Maximum service temperature | 200 (93) | °F (°C) | ASTM D648 |
| Tensile lap shear | 2,500 (17.2) / 2,500 (17.2) | psi (MPa) | ASTM D1002; aluminum-to-aluminum / steel-to-steel at 25°C |
| Tensile lap shear | 500 (3.4) | psi (MPa) | ASTM D1002; steel-to-steel at 66°C |
| Tensile lap shear | 1,800 (12.4) | psi (MPa) | ASTM D1002; polyester-to-polyester at 25°C |
| Lap shear after fluid immersion | 2,550 (17.5) / 2,600 (17.9) / 2,700 (18.6) | psi (MPa) | ASTM D1002; 7 days at 23°C in JP-4 / Skydrol / distilled water |
| Coefficient of thermal expansion | α1: 76.6; α2: 216.7 | ppm/°C | Cured material |
| Thermal conductivity | 0.41 | W/mK | Cured material |
| Outgassing | TML: 0.65 / CVCM: 0.01 | % | ASTM E595; total mass loss / collected volatile condensable material |





















