SB 643 is a performance, general-purpose, solid core gasket sealing material. It features a non-asbestos fiber facing material chemically bonded to a solid carbon steel core offering strength and handleability in a wide variety of applications.
With excellent oil, fuel, and fluid resistance, this product is well-suited for sealing fluids in a variety of applications. SB 643 is available in a variety of thicknesses, is tough and durable, and has excellent sealability. Finished SB 643 has a smooth, dark grey finish. It is easily cut with standard cutting methods.
Fiber-type laminates are often coated with an anti-stick coating to improve both fluid sealing and the release properties from the flanges upon teardown of the joint. MTI offers our TechCoat product line for this purpose. These water-based coatings can be applied to sheets or finished parts and are specially designed to accept a silicone bead in these types of applications.
Common SB 643 Applications
- engine gaskets
- pump gaskets
- intake manifold gaskets
- hydraulic system gaskets
- base gaskets
- cooling system gaskets
- automotive fluid-sealing applications
- motorcycle fluid-sealing applications
- marine fluid-sealing applications
- diesel fluid-sealing applications
- engine fluid-sealing applications
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