EPDM

EPDM or Ethylene Propylene Diamine Monomer is a high density rubber that is very durable. EPDM has some characteristics that make it especially suitable for gaskets, electrical insulation and lamination. EPDM can be finished to an extremely smooth surface. EPDM has great resistance to abrasives, tearing, solvents and high temperatures. EPDM has excellent flexibility at high and low temperatures.

FRP

Fiberglass Reinforced Plastic

HD-8660

Resin most commonly used by Bailiff in rotary molding of our Plastic storage tanks. Exxon product with excellent characteristics.

Specific Graviy

The density (or weight) of a substance relative to the density of pure water. Water has a specific gravity of 1.0. Iron weighs 7.85 times as much as water, so Iron has a specific gravity (sometimes abbreviated as 'SG') of 7.85.

swing ring

This is an extension that is bolted on the end of a mold to increase capacity. This allows a single mold to produce multiple sizes of tanks or other products that will only vary in length or height.

virgin

In the context of rotational molding, this refers to the use of new (unused) resin that does not have any re-cycled material added.

Weir

A dam that forms the base of the pinch point in a diaphram valve.