WHAT DOES FLAMMABILITY MEAN?
A product is rated for flammability depending on its Flash Point (the temperature of the product at which it will ignite if exposed to a flame). Refer to the NFPA ratings below. 4 = Extremely Flammable 3 = Flammable 2 = Combustible 1 = No rating, but can still bum 0 = Will not burn A product having no Flash Point, no matter how high it is heated, is classed as “0” or “Non-Flammable”, such as CLEANER 10.