Smiths Metal Centres Acrylic PMMA
- Chemical Family
- MethacrylatesPoly(methyl methacrylate) (PMMA)
Smiths Metal Centers Acrylic PMMA is an amorphous thermoplastic which is optically transparent, unaffected by moisture, and offers a high strength-to weight ratio. Common trade names for this material include Plexiglas®, Acrylite® and Lucite®. Acrylics are not recommended for use with chlorinated or aromatic hydrocarbons, esters or ketones. However, the material is unaffected by aqueous solutions of most detergents, acids, alkali’s and laboratory chemicals. It is both a thermoplastics and transparent plastic and is often used as an alternative to glass, but should not be used in structural applications due to poor impact resistance.
Properties
- Physical Form
- Rods, Sheets, Tube
- Rods
- Sheets
- Tube
Product families
- Consumer Goods — Other Consumer Goods Applications
- Interior
- Pipes & Plumbing
- Equipment & Parts
- Other Industrial Applications
Other characteristics
- Color
- Transparent
- Features
Amorphous, Clarity, Good Abrasion Resistance, Good Weather Stability, High Optical Transparency, High Strength to Weight Ratio, Low Smoke Emission, Low Water Absorption, Stiffness, Thermally Insulating, UV Resistant
- Polymer Name
- Polymethyl Methacrylate (PMMA)
- Tensile Modulus
- 2411.5 - 3445.0 MPa
- Markets
- Automotive & Transportation
- Building & Construction
- Consumer Goods
- Industrial
- Usability
Easily drilled, milled, engraved and finished with sharp carbide-tipped tools. Cut surfaces may be readily sanded and polished.
- Availability
- Sheet, rod and tube.
- Key Features
- Good insulation properties
- UV resistant
- Low smoke emissions
- Good stiffness & abrasion resistance
- Clear / colourable - excellent clarity
- Good weatherability
- Low water absorption
- Technology
- Plastics
- Product Families
- Plastics — Parts, Shapes & Films
- Material Features
- Amorphous
- Clarity
- Good Abrasion Resistance
- Good Weather Stability
- High Optical Transparency
- High Strength to Weight Ratio
- Low Smoke Emission
- Low Water Absorption
- Typical Applications
- Master cylinders
- Water tank liners
- Liquid chemical pumps
- Dashboard lighting
- Motorcycle helmet visors
- Hard contact lenses
- Certifications and Compliance
- UL 94
- Plastics and Elastomers End Uses
- Automotive Instrument Panel
- Hydraulic Applications
- Lenses
- Pipe Liners
- Pumps
- Safety Helmets
Technical data
Table 1 of 2
8 rows| Characteristic | Value | Unit |
|---|---|---|
| Tensile Strength | 8000 - 11000 | psi |
| Tensile Modulus | 350000 - 500000 | psi |
| Tensile Elongation at Break | 2.0 | % |
| Flexural Strength | 12000 - 17000 | psi |
| Flexural Modulus | 350000 - 500000 | psi |
| Compressive Strength | 11000 - 19000 | psi |
| Hardness | M80 - M100 | Rockwell |
| Izod Notched Impact | 0.3 | ft-lb/in |
Table 2 of 2
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Coefficient of Thermal Expansion | 5 - 9 | x 10^⁻⁵ in./in./°F |
| Heat Deflection Temperature (264 psi) | 150 - 210 / 65 - 100 | psi |
| Melting Temperature | 130 - 140 | °C |
| Operating Temperature | max. 65 - 93 | °C |
