DESCRIPTION OF THIXOTROPIC AGENT,ADDITIVES
XL-666 Thickening agents, or thickeners, is the term applied to substances which increase the viscosity of a solution or liquid/solid mixture without substantially modifying its other properties.
Thickening agent for XL silicone rubber for vertical surface application (making brush-on molds). Different viscosities can be attained by varying the amount of XL-666. XL-666 is added 2% as a small percentage of Part A and must be thoroughly mixed with Parts A and B.
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