FRP Covers & Gratings
FRP thickener and clarifier covers seal aggressive process tanks, control odor and emissions, and extend equipment life. Crimar engineers clear-span domed and flat covers with FRP trusses, plus launder covers, tank covers, gratings and handrail for safe access.





Applications
- Thickener & clarifier covers
- Launder & trough covers
- Tank, pit & channel covers
- Walkway gratings & handrail
Specifications
- Domed & flat clear-span designs with FRP trusses
- Access hatches, vents & sample ports
- Molded & pultruded gratings; slip-resistant surface
- Bolted, gasketed panels for field assembly
Standards
- ASTM D3299 / D4097
- ASME RTP-1 (enclosed vessels)
- Load-rated to project spec
Materials & resins
We select the corrosion barrier and structural laminate for each service — vinyl ester, isophthalic and Dow Derakane™ systems — matched to the chemistry, temperature and abrasion of your process. Common choices and datasheets:
Derakane 411 — general corrosion · Derakane 470HT — high temperature · Derakane 510A — oxidizing / chlorine · Derakane 8084 — abrasion / elastomer-modified · AROPOL 7334T — isophthalic
Request a quote for FRP Covers & Gratings
Send your drawings or service conditions and our engineers will spec it with you.