Microcrystalline Wax

Microcrystalline waxes are chemically inert. The ratio of iso-paraffinic hydrocarbons and naphthenic hydrocarbons is higher for micros than for paraffin waxes. The elastic and sticky properties of microcrystalline waxes derive from the high proportion of branched, iso-paraffins. The waxes have a microscopic, crystalline structure and these small crystals provide increased flexibility compared to paraffins. Crucial differences between micros result from: crystalline structure & size, molecular weight, and the iso-parraffin/normal paraffin ratio. All Micros are free of odor and taste.

Microcrystalline waxes dissolve like paraffin waxes, they’re freely soluble in chloroform, ether, benzene, carbon disulfide, volatile oils and many fixed oils. Micro waxes do not dissolve in water and alcohol and dissolve only slightly in absolute alcohol. Microcrystalline waxes are extremely tough yet are very plastic. This makes them very ductile and flexible, even at low temperatures and they possess high tensile strength. Micros are highly cohesive, this gives them adhesive properties and makes them resist both water vapor and water. Microcrystalline waxes excellent for laminating, coating, or hardening materials. Other useful properties include: changing from solid to liquid over a narrow range of temperature; their low viscosity as a liquid immediately above their melting point; their opalescence in thin films; and there electrical properties.

Micro waxes can be used for chewing gum base, cosmetics, ointments where they harden, lubricate and protect against moisture, food packaging, protecting against moisture through wax impregnated paper, film, foil, and corrugated board, increasing the fluidity and the flexible bonding of hot-melt adhesives, crayons, candles and insulating materials.

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Product Drop/Melting Point ℃/℉
(ASTM D87)
Oil Content Max%
(ASTM D721)
Color in Saybolt or No.
(ASTM D156)
Needle Penetration 1/10mm @25℃
(ASTM D1321)
Odour
(ASTM D1833)
Kinematic Viscocity @212℉
(ASTM D445)
Ultraviolet Absorbance
21CFR172.886(b)
Flash Point ℃
(ASTM D92)
SR190 78-82/173-180 5% N/A N/A N/A 15-20 N/A 260
No.70 62-72/148-162 3% 0.5 14-22 N/A 6-7.5 N/A N/A
DNW-160S 66-73/164-179 5% 1 100 N/A 8-12 N/A 200
DNW-170S 76-82/170-180 5% 1 80 N/A 15-23 N/A 200
8071 78-84/172-183 2% 26-30 25-33 N/A 12-16 N/A N/A
7835 70-80/158-176 2.5% 20-30 25-30 0-1 13-16 N/A N/A
No.85 82-87/180-188 5% 0.5 14-22 N/A 14-20 N/A N/A
8036 70-75/158-167 3.5% 15-30 30-50 N/A N/A N/A N/A
8036i 76-82/168-179 N/A N/A 40-80 N/A 15-23 N/A 200
No.80 77-82/171-180 3% N/A 14-22 N/A 14-20 N/A N/A
Shell LMP 62-66/144-151 1% 15 30 N/A 12-17 N/A N/A
2030 77-88/171-190 1% 5 15 N/A N/A N/A N/A

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