BS EN ISO 7390 Flow Resistance

Environmental Exposure


Sealants, Plastics, Chemical

Specially made aluminium holders are filled with a sealant and hung while wet in ovens and fridges at 70°, 50° and 5° ±2°C. After the hot or cold exposure the droop is measured and the amount the sealant resists flowing is calculated. This resistance to flow helps show how well a sealant performs when applied to vertical surfaces so the end user will know how much, if at all, the sealant will droop.


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The testing that 4ward carried out was of a high standard, met deadlines and targets that were necessary and we were kept involved with regular updates as the testing progressed.The support and guidance that 4ward offered to us as an individual company and via their input to BASA was greatly received and helped the industry increase it’s knowledge of what is still a confusing issue.I'm sure that that the issue of CE Marking will continue to evolve and encompass more products, but it is our intention to continue to use 4ward for our CE Marking requirements whether for new product...

Adshead Ratcliffe and Co Ltd

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