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Description: PLEXIGLAS® hw55 clear is a copolymer based on methyl methacrylate (MMA) with comonomer constituents. PLEXIGLAS® hw55 clear is particularly suitable for injection molding of technical items. Uses of PLEXIGLAS® hw55 clear: lighted keys, luminaire covers, fiber optics. Information provided by degussa.
Details
Product Type
Producer
Supplier
Advantages
- high light transmission
- good flowability
- high mechanical strength
- surface hardness and abrasion resistance
- excellent weatherability
- increased heat deflection temperature under load
- improved resistance to stress cracking
- optimized inherent color
Other Applications
injection molding
lighted keys
luminaire covers
fiber optics
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Processing Temperature | 220 - 250 | ºC | Cylinder Temperature |
| Appearance Properties | |||
| Refractive index | 1.51 | ISO 489 | |
| Physical Properties | |||
| MFI | 1.428 | g/10min | ISO 1133@Load 3.80 kg,Temperature 230 °C |
| Melting range | 220 - 250 | ºC | |
| Density | 1.19 | g/ml | ISO 1183 |
| Thermal Properties | |||
| Vicat softening temperature | 119 | ºC | B50; ISO 306 |
| Heat Deflection temperature | 106 | ºC | ISO 75; at 1.8 MPa |
| Heat Deflection temperature | 109 | ºC | ISO 75; at 0.46 MPa |
| Thermal Expansion | 70.0 | µm/m-°C | ASTM E831 @Temperature 0.000 -50.0 °C |
| Flameability | IEC 707@Thickness 1.60 mm | ||
| Dry Time | 120 - 180 | min | Desiccant-type drier |
| Glass transition Temperature | 122 | ºC | IEC 10006 |
| Mechanical Properties | |||
| (Charpy Impact Strength(unnotched | 20 | kJ/m² | ISO 179@Temperature 23.0 °C |
| Tensile modulus-MD | 3600 | MPa | 1mm/min; ISO 527 |
| Elongation at break-MD | 3.5 | % | 5mm/min; ISO 527 |
| Tensile Stress at break-MD | 80.0 | MPa | 5mm/min; ISO 527 |
| Chemical Properties | |||
| Water absorption | 2.2 | % | Water Absorption in Water; ISO 62; at Saturation |
| Moisture absorption | 0.60 | % | Humidity Absorption (23°C, 50%); ISO62; at Equilibrium |
| Optical Properties | |||
| Transmittance | 90 | % | Transmission Factor; DIN 5036;Visible |
| Process Properties | |||
| Mold Temperature | 60.0 - 90.0 | ºC | |
| Drying Temperature | <109 | ºC | Predrying |
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