ISO 7389 Building Construction - Joining Products - Determination of Elastic Recovery of Sealants

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 7389 testing. This international standard specifies a method for determining the elastic recovery of sealants after continuous extension.

The test sealant is extended and released. Elastic recovery is expressed as a percentage of elongation. The sealant manufacturer's instructions regarding, for example, whether to use a primer and the mixing procedure for multi-component sealants should be followed. The hollow space formed by the substrates will be filled with sealant.

The following measures will be taken:

• The formation of air bubbles should be avoided;
• The sealant must be pressed against the contact surfaces of the substrates;
• The sealing surface should be cut flush with the faces of the substrates and spacers.

The test specimens shall be placed on the edge of one of the supports and the non-adhesive material shall be removed as soon as possible. The test specimens should rest in this position to allow the sealant to cure or optimally dry.

EUROLAB assists manufacturers with ISO 7389 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.