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Microcrystalline Waxes: Macro-Flexibility

Microcrystalline Waxes are products derived from petroleum, consisting of complex hydrocarbon mixtures that include normal paraffin, as well as of monocyclic and polycyclic compounds, which are products with a ramified molecular structure. Microcrystalline Waxes have a very high average molecular weight (580-700), with a chain length between 40 and 50 carbon atoms, resulting in a high viscosity, considerably higher than that observed in Paraffin Waxes.

Unlike Paraffin Waxes, which are formed by macro-crystals, Microcrystalline Waxes are formed by very small and flexible crystals, which results in a higher oil affinity (oil gets literally "trapped" inside the microcrystalline structure and is not able to migrate to the surface). Due to these distinctive properties, Microcrystalline Waxes are highly malleable and less fragile than Paraffin Waxes.

Microcrystalline Waxes are compatible with most vegetable, animal and mineral waxes, as well as with a great variety of synthetic and natural resins. Their properties make them an essential raw material for a wide range of applications including cosmetics, chewing gum, paper, cardboard, industrial coatings, candles, anticorrosive coatings, adhesives and textile products, among others.

Properties of Microcrystalline Waxes

Code	Product	Melting Point	Congealing Point	Penetration	Color
2002	Amber Wax	174-183	169-174	12-15	Yellow-Brown
2003	Yellow Slack	151-160	145-154	41-52	Yellow-Amber
2005	Amber Petrolatum 158	162-172	151-160	50-110	Amber-Brown
2007	Mulprox 2007	176-181	167-172	11-16	Yellow
2012	Microcrystalline Wax	169-183	-	7-12	Yellow
2014	Modeling Clay Base Wax	-	156-162	92-103	Yellow-Amber
2017	Microcrystalline Wax	167-176	162-169	-	Yellow
2019	Mulprox 2019	171-181	162-174	41-54	Yellow
2021	Microcrystalline Wax 125	172-187	163-176	0-20	Amber
2022	White Microcrystalline Wax	-	158-167	15-28	White
2023	Mulprox 2023	171-181	163-174	10-20	Yellow
2034	Mulprox 2034	165-183	169-176	0-15	Yellow
2035	Mulprox 2035	181-187	-	11-15	Yellow
2037	Dental Wax	196-201	171-176	13-16	Yellow
2039	Mulprox 2039	172-183	169-176	9-18	Brown
2042	Wax Blend	172-180	-	12-25	Yellow
2052	Amber Molding Wax	153-171	140-158	0-20	Yellow
2054	Mulprox 2054	131-167	-	40-80	Amber
2055	Beige Paraffin	135-153	136-147	35-45	Beige-Yellow
2063	Gasket Wax 0-202	156-176	149-176	67-72	Amber-Brown
2064	Gasket Wax 2067	149-203	140-194	48-60	Yellow
2065	Gasket Wax 2069	-	144-158	30-45	Beige-Yellow
2067	Gasket Wax 2067	158-163	147-156	63-70	Brown
2069	Gasket Wax 2069	158-171	145-154	66-73	Dark-Brown
2075	Campeche Wax	174-180	167-172	22-33	Amber-Brown
2080	Cheese Wax	158-183	154-180	15-40	Yellow-Amber
2081	Mulprox 2081	167-185	-	20-35	Yellow
2085	Wick Wax	158-178	-	9-14	White
2090	Mulprox 2090	160-176	149-162	72-85	Amber
2096	Mulprox 2096	122-135	-	170-183	Brown
2098	Mulprox 2098	189-198	167-174	13-23	Yellow
2099	Mulprox 2099	190-199	178-183	13-18	Yellow
2103	Yellow Slack L	154-160	142-151	36-49	Yellow
2190	Processed Yellow Slack	147-160	138-154	30-50	Yellow-Amber

Notes:

Melting Point (ºF) by ASTM D127 method [figures in red, Congealing Point (ºF) by ASTM D938]. Penetration (dmm) ASTM D1321.

For more specific information about Physical-Chemical Properties please contact Commercial Department and ask for Technical Data Sheets.

Comparison between Paraffin Waxes and Microcrystalline Waxes

Paraffin Waxes	Microcrystalline Waxes
They consist of linear-saturated compounds	They have a higher percentage of ramified and cyclic structures
Their carbon number is around 18-40	Their carbon number is around 40-50
Their molecular weight is around 360-420	Their molecular weight is around 580-700
Their melting point is 115-154 ºF	Their melting point is 149-189 °F
They present a bright appearance	They present an opaque appearance
They fracture under cut conditions	They are resistant to fractures
All paraffin grades break under compression	They are plastic and tend to flow under compression
They do not have capacity to hold oil in their structure	They have capacity to hold oil in their structure, getting softer and plastic
They are transparent when forming films	They are opaque when forming films
They fracture when applied in the film form	They do not fracture when forming films
They contract significantly when solidifying	They contract slightly when solidifying
Their average viscosity is around 30-45 SUS at 212 ºF	Their average viscosity is around 55-100 SUS at 212 ºF

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