Selection of gaskets
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The function of the gasket material, in addition to effectively controlling the depth of application of the sealant, increasing the contact surface with the substrate (for the use of a circular gasket only), it is also possible to prevent the occurrence of three-sided adhesion, thereby Avoid possible cohesive failures. For the choice of gasket, it must be noted that the sealant used is compatible and non-adhesive. Commonly used compatible gaskets are closed cell polyethylene liners or open cell polyurethane liners. The size of the gasket is greater than about 10% to 25% of the gap width so that the seam can be held without dents when the glue is scraped. When installing the gasket, try to avoid scratching the surface of the gasket to avoid so-called deflation.
