Construction Diameters from 12 inches to 80 feet Polyester, vinyl ester, novalac vinyl ester, and other resin systems including fire retardant resins C-glass, nexus, and other synthetic veil interior surface liner systems Hand lay-up, chop, chop-hoop, and filament wound constructions Exterior surface treatments including a resin rich topcoat, pigmented gel coat, c-glass veil, nexus veil, or other synthetic veils Operating temperatures up to 220 deg f depending on the resin system selected Cylindrical vertical or horizontal with flat, cone, dished or sloped bottom & tops Rectangular vertical or horizontal Insulated, gel-coated, heat traced. Custom design