RAMERFOAM ® CHARACTERISTICS *Rigid when dry, soft when in the presence of water. *Wet volume 100% becomes 85% approx when dry. *Hydrophilic. *Holds up to 12 times its dry weight. *Non-linting, non-scratching. *Mechanically strong, abrasion resistant. *Non-aging, long lasting. *Natural colour : white. *Excellent colour fastness. *Burns without toxic gases. *Good chemical resistance. *Pore size variable between 200 and 1500 microns. *Warm water softens sponge faster. *Cells are inter-communicating.