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Methyl Methacrylate (MMA)

Methyl Methacrylate Monomer offers significant advantages as an additive in a wide range of copolymer-based products and is used in molding and extruded resins and extruded sheet (PMMA), in mineral surface composites, and coatings.

Used in:

  • Plastic sheet
  • Molded and extruded products
  • Modifiers
  • Harder components of copolymers, with acrylates for similar applications

Advantages:

  • Hardness
  • Flexibility
  • Clarity
  • Color compatibility
  • Toughness
  • Internal plasticization
  • Weatherability
Typical Properties
These properties are typical but do not constitute specifications.
 

Methyl Methacrylate MMA

 

Specifications

Typical

Assay, % min

99.80

99.9

Acidity, % max

0.005

0.003

Water, % max

0.05

0.03

Color, APHA

10

5

Inhibitor*, ppm

9-12

10****

 

45-55

50

 

22-28

HQ 

25

 

54-66

HQ 

60

Refractive Index, n25D

 

1.4118

Specific Gravity,
     25°C/15.6°C

 


0.939

Density, lbs/US gal

 

7.8

Flash Point**, °C
                     °F 

 

8(S)
47

Freezing Point, °C

 

-48

Boiling Point, °C
     760mm

 


101

Viscosity, cps

 

0.53

Tg, °C

 

105

Recommended Storage
     Life,*** years max

 


1

   *

Inhibitor is MEHQ (monomethyl ether of hydroquinone or p-methoxyphenol) except where HQ (hydroquinone) is indicated.
**Flash Point Method:S = Setaflash
  PM = Pensky-Martens Closed Cup
  Tag = Tag Closed Cup
***Storage Life: Refer to MSDS for guidelines on individual monomers.
****If using MMA 10 pm HEHQ, recommended storage life is 6 months.