ASTM C1281-16 PDF Download

ASTM C1281-16 is a standard specification that describes preformed tape sealants for glazing applications. These sealants are used as components of glazing systems and are designed to serve as an effective water and air barrier. The preformed tape sealant must be composed of suitable raw materials that meet the specified requirements. It should also have uniform dimensions and consistency.

To ensure the effectiveness of the preformed tape sealant, various test methods are performed. These tests measure properties such as low temperature flexibility, weight loss, vehicle migration, backing removal, yield strength, compression or recovery, water absorption, and flow. These tests assess the ability of the sealant to create a proper seal that prevents the entry of air and water into the glazing system.

It should be noted that this specification does not cover all properties of preformed tape sealants, and it is important for purchasers and design professionals to understand that not all sealants meeting this specification may be suitable for all applications. In some cases, additional requirements may be agreed upon between the supplier and user. This standard does not include preformed foam tape sealants and there is no similar ISO standard currently recognized.