CONAPOXY FR-1274
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- 1:1 Meter-Mix Processing
- Long Low-Exotherm Work Window
- UL 94 V-0 at 3 mm
Product Description
CONAPOXY FR-1274 Epoxy Encapsulant is a two-component, mineral-filled, flame-retardant epoxy system for potting and casting electrical and electronic devices. Its 1:1 mix ratio by both weight and volume accommodates hand mixing, meter mixing and vacuum potting. The mixed material has an initial viscosity of 40,000 cP at 25 deg C, a 2 to 3 hour gel time for a 225 g mass, and low-exotherm behavior. The system is used to pot and encapsulate modules, transformers, coils, circuitry and strain-sensitive devices.
Key features
- 1:1 Weight and Volume Mix: uses equal component ratios for hand, meter-mix and vacuum potting methods
- Long Low-Exotherm Window: combines a 2 to 3 hour gel time for a 225 g mass with a 43 deg C peak exotherm for a 200 g mass
- UL 94 V-0 at 3 mm: provides a V-0 flame classification for the cured system at 3 mm thickness
Applications
Potting and encapsulation of modules, transformers, coils, circuitry and strain-sensitive electrical or electronic devices.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical values for FR-1274 Part A, Part B and mixed material; the applicable state is identified by row.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A viscosity | 27,000 | cP | 25 deg C |
| Part B viscosity | 55,000 | cP | 25 deg C |
| Specific gravity | 1.6 | Part A and Part B at 25 deg C | |
| Mix ratio | 100:100 | parts | By weight and by volume |
| Initial mixed viscosity | 40,000 | cP | 25 deg C |
| Gel time | 2 to 3 | hours | 225 g mixed mass at 25 deg C |
| Peak exotherm | 43 | deg C | 200 g mixed mass at 25 deg C |
| Shelf life | 12 | months | Original sealed containers; dry storage below 25 deg C, out of direct sunlight |
After-processing / final-state properties
Values are typical for cured FR-1274 and are not specification limits.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Dielectric strength | 400 | V/mil | ASTM D149 at 25 deg C |
| Volume resistivity | 8.0 x 10^14 | ohm-cm | ASTM D257 at 25 deg C |
| Shore hardness | D 80 | ASTM D2240 at 25 deg C | |
| Tensile strength | 5,500 | psi | ASTM D412 at 25 deg C |
| Linear shrinkage | 0.1 | % | ASTM D2566 at 25 deg C |
| Glass transition temperature | 50 | deg C | Cured material |
| Thermal conductivity | 0.8 | W/(m K) | ASTM D5930 |
| Flammability | V-0 | UL 94 at 3 mm |
