BS EN 13494:2019 pdf free download.Thermal insulation products for building applications – Determination of the tensile bond strength of the adhesive and of the base coat to the thermal insulation material.
BS EN 13494:2019 specifies the test apparatus, materials and procedures for determining the tensile bond strength of an adhesive, a reinforced base coat or a rendering system to a thermal insulation product for use as components in external thermal insulation composite systems (ETICS).
BS EN 13494:2019 described in this document is not applicable to PU foam adhesives.For testing such products see EN 17101.
2 Normative references
EN 1602, Thermal insulating products for building applications-Determination of the apparent density;
EN 1607, Thermal insulating products for building applications- Determination of tensile strength perpendicular to faces;
EN 17237, Thermal insulation products for buildings-External thermal insulation composite systems with renders (ETICS) -Specification;
4 Principle
The tensile bond strength of the adhesive, the reinforced base coat or the rendering system to the thermal insulation product is determined by applying a direct tensile load perpendicular to the faces of the individual test specimen.
The glue shall be capable of providing a strong bond between the metal pull head plates, the adhesive, the reinforced base coat or the rendering system. The glue shall also be capable of achieving a strong bond between the optional substrate and the thermal insulation product. Solvent free epoxy or olyurethane glue has been found suitable for this purpose. The glue shall not damage or react chemically with the adhesive, thermal insulation product, the reinforced base coat or the rendering system. It shall not influence the results.

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