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Choosing Your Resin

Choosing Your Resin

When ordering Redco™ FRP products, such as grating, it is not as simple as saying how many sheets of what size and color grating. Resin selection is important and there are a surprising number of choices available. You should carefully consider your application before making a decision as the choice may have a dramatic impact on the grating lifespan. The choices are as follows:

  • VE-a premium grade vinyl ester, for high chemical resistance
  • NVE-a premium grade vinyl ester, for high chemical resistance and is NSF-61 certified for hot and cold potable water
  • XVE-a premium grade vinyl ester, with extra fire resistance (a flame spread rating of 10 or less)
  • PP-an all-purpose isophthalic polyester for industrial applications
  • NPP-an all-purpose isophthalic polyester for industrial applications and is NSF-61 certified for hot and cold potable water
  • GP-a general purpose orthophthalic polyester for architectural or other applications with less corrosion problems
  • FF-an economical isophthalic polyester for food processing or similar applications

As you can see, some of the choices overlap. For example, there are two NSF-61 certified choices for applications in or around potable water. Therefor other criteria, such as the level of chemical resistance required, need to be considered in order to make the correct selection. Need help? A Redco™ FRP rep would be happy to assist you.

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