Microcrystalline wax used for enhancing the flexibility of the adhesive

Primary Functions in Adhesives
Enhancing Flexibility and Toughness: After curing or cooling, the crystalline
network of microcrystalline wax absorbs and disperses external stresses,
preventing brittle cracking of the adhesive layer. It significantly improves
impact resistance, particularly at low temperatures.
Regulates Open Time and Cure Rate: In hot melt adhesives, microcrystalline
wax modulates melt viscosity, influencing the flow and penetration of the
adhesive after application. This controls workability time and cure speed.
Enhances Surface Properties: Microcrystalline wax migrates slightly to the
adhesive surface, providing anti-blocking properties, slip resistance, and
gloss.
Cost reduction: As a petroleum-derived hydrocarbon, microcrystalline wax
serves as an economical filler/modifier. It can partially replace more
expensive polymer resins without significantly compromising core performance.

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