LOCTITE EA 9820
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Extended >8-Hour Work Life
- Low-Flow Honeycomb Potting
- High Compressive Strength Syntactic Fill
Product Description
LOCTITE EA 9820 AERO is a one-component aerospace epoxy syntactic potting compound for honeycomb composite structures. The amber material is an intermediate-density syntactic with high compressive strength for fastener and attachment potting and panel-edge reinforcement. Work life after thaw is greater than 8 hours at 25 deg C, while vertical flow is less than 0.1 in after 30 minutes at either 25 deg C or 52 deg C in vertical-flow testing. Dual heat-cure schedules are available at 121 deg C and 177 deg C. Applications include honeycomb fastener potting, attachment potting, and panel-edge reinforcement.
Key features
- Extended work life: Work life after thaw is greater than 8 hours at 25 deg C.
- Low vertical flow: Vertical flow is less than 0.1 in after 30 minutes at 25 deg C or 52 deg C.
- High compressive strength: ASTM D695 ultimate compressive strength is 155.9 MPa at 25 deg C after a 121 deg C cure.
Applications
Applications include honeycomb fastener and attachment potting plus panel-edge reinforcement.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Work life after thaw | >8 | hours | At 25 deg C |
| Vertical flow | Less than 0.1 | in | After 30 minutes at 25 deg C |
| Vertical flow | Less than 0.1 | in | After 30 minutes at 52 deg C |
| Shelf life | 9 | months | Stored at -12 deg C or below |
| Cure schedule | 90 to 100 | minutes | At 121 deg C; ramp 1.7 +/- 0.6 deg C/min |
| Cure schedule | 60 to 70 | minutes | At 177 deg C; ramp 1.7 +/- 0.6 deg C/min |
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Cured density | 1.12 | g/cm^3 | Cured syntactic material |
| Ultimate compressive strength | 155.9 | MPa | ASTM D695; cured at 121 deg C; unaged; tested at 25 deg C |
| Ultimate compressive strength | 87.6 | MPa | ASTM D695; cured at 121 deg C; unaged; tested at 121 deg C |
| Ultimate compressive strength | 157.2 | MPa | ASTM D695; cured at 177 deg C; unaged; tested at 25 deg C |
| Ultimate compressive strength | 86.2 | MPa | ASTM D695; cured at 177 deg C; unaged; tested at 177 deg C |
| Ultimate compressive strength | 173.1 | MPa | ASTM D695; cured at 177 deg C; aged 500 hours at 177 deg C; tested at 25 deg C |
| Ultimate compressive strength | 107.6 | MPa | ASTM D695; cured at 177 deg C; aged 500 hours at 177 deg C; tested at 177 deg C |
