G10 Epoxy Glass Washer
The G10 epoxy glass washer is an important part of flange insulation gasket kits. We offer full sizes and thicknesses; if you need any, please contact us.
Description
The G10 epoxy glass washer is a high-performance industrial fastener washer made from continuous fibreglass cloth that is impregnated with epoxy resin. It is mainly used for electrical insulation and preventing galvanic corrosion because it is strong, absorbs little moisture, and has excellent dielectric properties.
Advantages and Benefits
The G10 epoxy glass washer has many advantages, as detailed below, which is why we frequently use it.
High Dielectric Strength
Ideal for insulating nuts and screws in electronic enclosures to avoid electrical shorts and arcs.
Good Galvanic Isolation
Frequently used in flange insulation kits to separate dissimilar metals and prevent galvanic corrosion in pipeline and marine environments.
Strength-to-Weight Ratio
Extremely rigid and durable, with exceptional flexural and impact strength.
Low Moisture Absorption
It has a very low water absorption rate; thus, it retains mechanical and electrical integrity even in high-humidity settings.
Typical Applications
The G10 epoxy glass washer is excellent for isolating oil and gas pipeline flanges and insulating cryogenic systems. Its primary applications include electrical insulation and galvanic corrosion prevention. It seals pipe joints to prevent liquid leaks and separates various metals to prevent rusting.
Typical Properties of G10
| Properties | Test Methods | Unit | Value |
|---|---|---|---|
| Density | ASTM D792 | g/cm³ | 2 |
| Water Absorption, 24 hrs | ASTM D570 | % | 0.1 |
| Tensile Strength | ASTM D638 | psi | 45000 |
| Compressive Strength | ASTM D695 | psi | 65000 |
| Hardness | ASTM D785 | Rockwell | M110 |
| Coefficient of Linear Thermal Expansion | ASTM D696 | x 10-5 in./in./°F | 0.55 |
| Max Operating Temp | °C | 130-140 |
