What are the equipments of a quality control of paints, inks and adhesives?
we oragnics solvants of paints such as: hexane, Ketone, ...
These solvents aren't pure and in the most cases are recycled solvents?
Adhesion is tested by making a crosshatch on a dried paint surface. A piece of tape is applied to the crosshatch, and then pulled off. A good paint will remain on the surface.
Resistance to soapy water is tested by a machine that rubs a soapy brush over the paint's surface. – Wet Abrasion Scrub Tester.
Weathering/ Resistance of the colour to fading is determined by exposing a portion of a painted surface to outdoor conditions i.e. sunlight, water, extreme temperature, humidity, and comparing the amount of fading to a painted surface that was not exposed.
Dear Mahendra Mohan
Thanks so much for your elegant reply.
Best regards!
Adel Oueslati
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