Polypropylene absorbs hydrocarbons but is water repellent (hydrophobic). This enables it to float on water for many months at a time.
Polypropylene absorbs diesel at 10 times it's own weight and oils at 20 times it's own weight.
Polypropylene material is granulated and assembled into an outer mesh to form sausages (booms) and pillows.
Pads are 45cm square x 8mm, thick and rolls are of the same material 90cm wide and 40 metres long.
A number of other absorbent products are available such as drum top covers, refuelling mats, bilge socks, etc.
Envirosorb is now available in dimpled non linting in pads, mats and rolls. A convenient dispenser box is also available with the product folded and perforated.
Absorbents for chemical spills are made of the same material but the addition of a small quantity of surfactant (detergent) during manufacture allows the absorbent to absorb all liquids.