How the FIRA International experts test adhesives to

- BS EN 204:2016 Classification of thermoplastic wood adhesives for non-structural applications.
- BS EN 205:2016. Adhesives. Wood adhesives for non-structural applications. Determination of tensile shear strength of lap joints

There are four grade types of adhesive – D1 to D4. Two sequences carrying out different condition test treatments and test durations on the lap joint

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