Epoxy Primer Coat Paint: Clear, Practical Guidance

Summary for epoxy primer coat paint Discussion

Epoxy primer coat paint is discussed in response to a request for the scientific names and functions of primers such as chromate, chromate-free, and etch primers. Brian Terry explains that there is no single scientific name for epoxy primers because they are blends of resins, dyes, and solvents, and that most formulations are proprietary, so manufacturers are the best source for detailed help. The thread then shifts to a later question from Harish Singh asking for a starting formulation for basic automotive primer paints, but no answer is shown in the excerpt. Overall, the discussion emphasizes that primer types are usually identified by performance and chemistry rather than a universal scientific name, and that practical formulation details are typically obtained directly from paint suppliers.

Q. I am looking for the scientific names of any epoxy primers, which relate to the jobs that they do, i.e., Chromate/chromate free, etch primer. Please include a simple definition of what purpose they serve in relation to their physical/chemical make up.

Michael Anthony Wray
apprentice, aerospace treatments – Manchester, UK
2006

A. Michael,

There is no specific scientific name for epoxy primers, they are a mixture of resins, dyes and solvents. Most of the ingredients are proprietary and no one is going to give you their formulation in an open forum.

Your best bet is to talk directly to the paint manufacturers; they will be able to help you with a certain amount of your query.

Brian Terry
Aerospace – Yeovil, Somerset, UK
2006


Q. Can anyone suggest a starting formulation for basic automotive primer paints?

Harish Singh
– Mumbai, Maharashtra, India
February 28, 2013