SB 643-AL is a performance, general-purpose, solid core gasket sealing material. It features a non-asbestos fiber facing material chemically bonded to a solid aluminum 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. The softer aluminum core provides better conformance to flanges and corrosion resistance in harsh environments. SB 643-AL is available in a variety of thicknesses, is tough and durable, and has excellent sealability. Finished SB 643-AL has a smooth, dark grey finish. It is easily cut with standard cutting methods.

Coatings

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-AL 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

For more information about SB 643-AL, email sales@mtigasket.com!