| http://www.w3.org/ns/prov#value | - A catalyst is typically added to B-side components but is, alternatively, mixed with the A-sidecomponents.Additives such as surface active agents, plasticizers, fillers, flame retardants, pigments, stabilizers such as antioxidants, fungistatic and bacteriostatic substances and the like are optionally used in polyurethanes.
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