Is high expansion foam toxic?
High expansion foams have an environmental value as well. The environmental impact of the fluorocarbon surfactant used in some firefighting foams has been criticized in recent years. High expansion foams do not contain this surfactant and are overall low in toxicity.
What is high expansion foam made of?
SYNTHETIC/DETERGENT (High Expansion) FOAM CONCENTRATE: Normally used at a concentrate rate between 1.5% to 2.5%, this type of foam concentrate is manufactured from a combination of hydrocarbon surfactants and solvents.
What is hi ex?
High expansion (HI-EX) foam agents, also called detergent foams or multipurpose synthetic foams, are typically based upon fatty alcohols, alkyl sulphates and butyl carbitol. As the name suggests they expand at high ratios to quickly form voluminous foam for specific applications in extinguishing and vapour suppression.
Does high expansion foam contain PFAS?
Tyco Fire Products produces High Expansion Foam without using PFAS. Fluoroprotein Foam is derived from a protein foam concentrate to which small amounts of fluorochemical surfactants are added to produce an easier flowing foam.
Is blown in foam insulation safe?
After proper curing, spray foam insulation is safe and should not cause any health-related or even structural problems in your property. However, it is highly important for you to call a licensed insulation contractor to install this type of insulation in your property.
What chemicals are in a foam fire extinguisher?
In general, the powders used were sodium bicarbonate and aluminium sulfate, with small amounts of saponin or liquorice added to stabilise the bubbles. Hand-held foam extinguishers used the same two chemicals in solution.
Is AFFF foam toxic?
AFFF is toxic, especially if it contains PFOS and PFOA. These PFAS are present in small amounts in the blood of most people in the United States, according to the U.S. Department of Veteran’s Affairs and the EPA. For most people, they don’t pose a threat in small amounts.
What is high expansion foam usually used for?
High Expansion foam is suitable for use in combating fires in buildings, process areas, warehouses, and aircraft hangar systems. High expansion foam systems can be used for protection of LNG storage areas by quickly blanketing the flammable liquid surface and helping to control vapor release.