Material Safety Data Sheet
25887 Crown Valley Parkway
Laguna Niguel, CA 92677
Date Issued: 10/8/98
Transport Emergency: CALL CHEMTREC Telephone # : 800-424-9300 Clark Foam Emergency #: 949-582-2000
PRODUCT NAME; Clark Foam (surfboard cores, sailboard cores and slab stock)
CHEMICAL FAMILY: Closed cell, rigid Polyurethane Foam
STRUCTURE: Carbon dioxide blown, Toluene di isocynate/Polyester Rigid Polyurethane Foam
II. HAZARDOUS INGREDIENTS
Not applicable – Rigid Polyurethane Foam is a fully reacted polymer.
III. PHYSICAL DATA
APPEARANCE: Solid. COLOR: White or brown on surface after exposure to sunlight
ODOR: None SPECIFIC GRAVITY: Will vary with density or “weight “ of foam.
SOLUBILITY IN WATER: insoluble PERCENT VOLATILES BY VOLUME: None
IV. FIRE AND EXPLOSIVE DATA
FLASH POINT OF SOLID MATERIALS: Not applicable – solid material.
FLASH POINT OF FINE FOAM DUST: Any finely divided combustible solid is capable of producing a dust explosion. Experimentally
produced dust explosions using 200 mesh polyurethane dust indicate that minimum airborne concentrations of 25-30 grams dust per cubic meter
of air are required before an explosion can occur. Other experiments suggest 100-200 grams per cubic meter as the lowest critical concentration.
Dust monitoring of air at polyurethane fabricating equipment has shown that dust concentrations during normal operations are considerably
below the lowest critical level for an explosion to occur, and the probability of an explosion is negligible. Apparently, the polyurethane dust
formed is too coarse to remain airborne for long and settles rapidly.
EXTINGUISHING MEDIA Use water spray, carbon dioxide, dry chemical, alcohol-type, or universal-type foams applied by manufacturer’s
SPECIAL FIRE FIGHTING PROCEDURES Full emergency equipment with a self-contained breathing apparatus and full protecti