Smith/ACO Drain channel bodies are highly resistant to chemical attack and, with the appropriate grate, can be used in most environments where acids and dilute alkalis are encountered.

Refer to chemical chart left for resistance of Polyester and Vinyl ester polymer concrete. Fiberglass products use the same polyester resin - refer to Polyester details for chemical resistance.

When greater chemical resistance is required, Vinylester polymer concrete channels should be specified.

These recommendations are for guidance only. Customers are advised to test a coupon of polymer concrete to ensure suitability. Test coupons are available free of charge from Smith/ACO.

Polymer concrete is not affected by road deicing salts, and conforms to ASTM - B117 Salt Spray Test.

When reviewing potential applications of trench drains in chemical environments, the following issues should be considered:

1. Type(s) & mixture of chemical(s).
2. Concentration percentages.
3. Contact time with trench system.
4. Temperatures of chemicals flowing into the trench drain. (180ēF- 82ēC max).
5. Flushing system employed to clear chemicals from the system.
6. Cleaning agents should be checked for compatibility with trench material.
7. Test coupons can be used for final determination of chemical resistance.
8. Grate, locking mechanism, edge rail, outlet and trash bucket materials should be checked for chemical resistance.
9. Check sealant for compatibility.