Epoxy Coatings – Mil –Spec Type ER

Epoxy coatings are generally packaged in two parts that are mixed prior to application. The two parts consist of:

1) An epoxy resin which is cross-linked with

2) A co-reactant or hardener.

Epoxy coatings are formulated based upon the functional performance requirements for the end product. There are many types of epoxies with varying properties. Epoxies produce a hard, chemical and solvent resistant finish. They are typically used on concrete and steel to give resistance to water, alkali and acids. It is the specific selection and combination of the epoxy component and the hardener component that determines the final characteristics and suitability of the epoxy coating for a given environment. Unmixed epoxies have a long shelf-life. Fast drying-units can be handled in a short period of time

Applications of Epoxy Coatings

  • Aerospace applications
  • Electrical systems and electronics
  • Printed Circuit Boards
  • Electronics Potting
  • Marine applications
  • Military
  • Paints and coatings
  • Adhesives
  • Industrial tooling and composites
  • Consumer Products
  • Biology

Typical Properties of Epoxy Coatings

Note: Epoxies vary greatly in their properties and from manufacturer to manufacturer

Chemical Resistance

Note: The Tables below represent typical values. Epoxies may differ widely from product to product and from manufacturer to manufacturer. Please consult the manufacturer or applicator for accurate data.

Acids & Alkalies

E – Excellent; no attack

G – Good; no significant attack

F – Minor attack; testing required

N – Not recommended

* – Also Nitrates and Sulfates