Hy-Tech’s unpolished flat test gaskets are specifically designed for Face Seal-style fittings. These test gaskets provide a cost-effective solution without lapping or polishing. Available in nickel and stainless steel variants, Hy-Tech unpolished flat gaskets will seal with more tightening than standard products.
Flat Gaskets

Key Features and Benefits
- DI water rinsed
- Available in bulk packaging
- Cost-effective
- Available in nickel or stainless steel
- Safe, simple testing solution
Case Study/Technical Notes
Fact: Standard Face Seal-style gaskets are lapped or polished, sealing with a 1.8” turn.
Problem: Lapping, polishing, and the associated individualized packaging is expensive.
Solution: Hy-Tech’s Unpolished Flat Test Gaskets eliminate the necessity of costly procedures. Our test gaskets can seal with more tightening than standard gaskets and do not require individual packaging due to their rougher surfaces. Additionally, scratches or minor imperfections are coined out of the surface of the gaskets during the tightening process.
During testing applications when tightening past 1.8” is acceptable, Hy-Tech gaskets are a significant money saver.
PRODUCT ILLUSTRATION FOR VCR-STYLE FITTINGS
1/4 INCH

Part Numbers and Specs
| Part Number | Details | Face Seal-Style System Size |
|---|---|---|
| GC-4-NIF | Nickel 200 | ¼” |
| GC-4-SSF | 316 Stainless Steel | ¼” |
| GC-8-NIF | Nickel 200 | ½” |
| GC-8-SSF | 316 Stainless Steel | ½” |
Contact [email protected] or call 800-638-5961 for current price and availability.