KODA®
KODA® O-Ring Material Identifier
KODA® is a portable O-ring material identification tool designed to help technicians quickly distinguish between four commonly used elastomer compounds: FFKM (Kalrez®), EPDM, FKM (Viton®), and NBR (Buna-N). It is widely used in maintenance, quality inspection, and inventory control to reduce the risk of installing the wrong sealing material in critical equipment.
Instead of relying on visual inspection or guesswork, KODA® provides a repeatable mechanical response method to support faster and more confident material verification before installation.
What KODA® Helps You Solve
In real industrial environments, O-rings are often mixed, mislabeled, or stored for long periods. This leads to installation errors that can cause:
- Chemical incompatibility failures
- Premature swelling or cracking
- Seal leakage after assembly
- Unexpected downtime in hydraulic systems
KODA® is designed to reduce these risks by helping users separate similar-looking elastomers before installation, especially in maintenance and warehouse environments.
How KODA® Works
The tool uses a controlled impact and rebound response method:
- Place the O-ring on a stable surface
- Position the KODA® tool vertically on the O-ring cross-section
- Release the internal weight from a fixed height
- Observe the rebound behavior
- Match the result to a calibrated reference range
Each elastomer type responds differently due to variations in elasticity, hardness, and energy absorption, allowing basic material classification without destructive testing.
The KODA® is a registered trademark of Xingtai KENAIDA Industry Co., Ltd., All rights reserved.
Best Use Conditions
KODA® is designed for consistent and repeatable results under controlled conditions:
- 70 Shore A durometer O-rings
- New or unused seals
- Standard AS568 cross-sections (typical industrial sizes)
- O-rings within normal shelf life
- Clean, undamaged elastomer surfaces
It performs best in warehouse sorting, incoming inspection, and pre-installation verification workflows.
When You Should NOT Use KODA®
To avoid inaccurate results, KODA® should not be used for:
- Worn, cracked, or chemically degraded O-rings
- Unknown or mixed material scrap seals
- Very small or oversized cross-sections
- Non-standard gasket materials
- Seals outside standard hardness range (non-70A)
For failed seals, laboratory testing methods (FTIR or chemical analysis) are more appropriate.
Practical Value in Industrial Use
In many facilities, O-ring failures are not caused by incorrect dimensions but by incorrect material selection. KODA® helps reduce this risk by adding a quick verification step before installation.
This improves:
- Installation accuracy
- Equipment reliability
- Inventory control efficiency
- Maintenance response speed
Key Advantages
- Portable and easy to use in the field
- No chemicals or lab equipment required
- Helps prevent costly installation mistakes
- Supports fast material sorting workflows
- Reduces downtime caused by seal failure
Conclusion
KODA® is a practical diagnostic support tool for identifying common O-ring elastomers in industrial environments. While it does not replace laboratory-grade material analysis, it provides a fast and effective front-line method for reducing installation errors and improving sealing system reliability.
For maintenance teams and distributors managing mixed O-ring inventories, KODA® is a simple way to improve accuracy, reduce downtime, and support better material control decisions.
DISCLAIMER: The use of rubber elastomer names such as Kalrez® & Viton® (which are trademarks of DuPont Dow Elastomers) are for reference only, and does not guarantee that the materials tested with this tool are of these name brands.