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| | ACRYLIC PMMA
- Most acrylics are polymers of methyl methacrylate (PMMA) with methyl, ethyl
or butyl acrylate added to modify properties. Impact modified acrylics are used
as a cap stock for HIPS, ABS, PVC, PC and other acrylics and may be co-extruded
or applied as a laminate during extrusion.
SEE ALSO
CHARACTERISTICS
- Good optical clarity
- Good weather ability and resistance to sunlight
- Poor impact strength unless modified
- Good dimensional stability and low shrinkage
- Good abrasion resistance
- High gloss (or controlled gloss)
- Limited solvent resistance: attacked especially by ketones, esters,
chlorocarbons and aromatic hydrocarbons, freons
TYPICAL APPLICATIONS
- Transparent items such as lenses,
- Automotive trim
- Household items
- Light fixtures and decorator items
- Conformed coatings for printed wiring boards
- Signs and spas
IMPACT MODIFIED VERSIONS ARE USED IN
- RV components
- Shutters
- Bathtubs
- Wall panels
- Roofing components
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Specific
Gravity
1.2
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Izod impact
(FT-Lbs)
0.5 to 2.5
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Heat Distortion ('F @66 psi) 75c
Brands
Suppliers for this product
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