BS EN ISO 8340 Tensile Properties

Mechanical

ISO, BSI, EN

Sealants, Plastics, Chemical

This test shows a sealants ability to be stretched a small amount for a long period without breaking free. Replicating the natural forces expansion and contraction of sealed materials will apply to the sealant.

The sealant is applied to the materials it intended for use on (aluminium, glass or mortar) and left to cure for a month under laboratory conditions, following which if required, dry heat and cool water cycling. The assembled sealant blocks are then stretched a pre determined amount(depending on modulus etc.) and held at the stretched amount for 24 hours. Any breakage is assessed and whether the sealant ruptures or comes off the material.

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