The retention of valve guides in cylinder heads is a critical, High Strength application subjected to maximum engine stresses. The compound must provide an absolute lock against dynamic forces while withstanding the highest sustained temperatures in the engine bay. Failure leads to immediate valve train malfunction and severe engine damage.
The optimal solution is a high-strength retaining compound engineered specifically for extreme thermal environments.
INCURE WeldLock™ 347 Retaining Compound (Green)
While cylinder heads operate under extreme heat, the INCURE WeldLock™ 347 is the definitive choice for securing valve guides due to its high-strength bond and superior thermal resistance compared to other standard green retaining compounds in the WeldLock™ line.
| Key Feature | Performance for Valve Guides |
| High Strength, Fast Curing | Creates a monolithic, shock-resistant bond that prevents the guide from spinning or backing outdue to constant valve impact and engine vibration. |
| Temperature Resistance (175∘C) | Maintains full structural integrity under the sustained, elevated temperatures of the cylinder head, ensuring the guide remains fixed throughout the engine’s operational range. |
| Ideal Gap Fill (Up to 0.15mm) | Perfectly secures press-fit valve guides, eliminating the micromovement (fretting) that destroys the guide-to-head interface. |
| Core Application | Designed for press fit cylindrical assemblies exposed to elevated temperatures and dynamic loads, matching the exact demands of a cylinder head. |
The WeldLock™ 347 provides the required security and thermal stability for this demanding engine application, ensuring precise valve operation.