Epoxy coating resin application

Author	Message
Maria Julia Ferreira	Maria Julia Ferreira posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 4, Visits: 22	Hello, I'm trying to apply an epoxy coating resin (bisphenol A epoxy resin) onto mild steel, with a bar coat of 100 micra. The resin to hardener ratio is 2:1. When the surface begin drying some defects appear as the photo show. The surface preparation was done according to ASTM- G1- 03, and I tried to repeat the process with a bar coat of 200 micra and the result was the same. What is wrong? Can you help me? Many thanks Attachments IMG_0472.JPG (1.1K views, 195.00 KB) Tags epoxi resin problems Edited 11 Years Ago by Maria Julia Ferreira
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	If the substrate is prepared correcting with no contaminants and it has been etched correctly then it will break down the surface tension of the epoxy and you will not get this fisheye problem. Therefore it must still have something on the surface and it hasn't been prepared correctly. I have bonded steel (mild and stainless) into various resins, the only times I've had issues with bonding/wetting out has been when I haven't prepped correctly
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Maria Julia Ferreira - 11 Years Ago

Warren (Staff) - 11 Years Ago

Maria Julia Ferreira - 11 Years Ago

Hanaldo - 11 Years Ago

Maria Julia Ferreira - 11 Years Ago

ChrisR - 11 Years Ago

Maria Julia Ferreira - 11 Years Ago

ChrisR - 11 Years Ago

Warren (Staff) - 11 Years Ago

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