Acrylic injection molding services
We use acrylic to produce transparent parts such as windows, view screens, and various lighting equipment. It’s often used as an alternative to glass due to its high tensile strength and weather and scratch resistant nature. It takes dyes and colorants very well so you can produce many aesthetic effects. On top of its optical and transparent properties, acrylic is odorless and tasteless and doesn’t contain Bisphenol A (BPA). BPA is a harmful organic compound, so plastic injection molding resins like acrylic are considered safe for food storage.
Description
he table below lists the material properties of generic acrylic (PMMA).
| PMMA | ||
| Physical | Density (g/cm3) | 1.13-1.19 |
| Shrinkage Rate (%) | 0.4-0.61 | |
| Rockwell Hardness (R) | 71-102 | |
| Mechanical | Tensile Strength at Yield (PSI) | 6,390-10,700 |
| Elongation (%) | 3.0-12 (Break) | |
| Flexural Modulus (PSI) | 247,000-509,000 | |
| Flexural Strength (PSI) | 6,770-18,900 | |
| Injection Molding | Drying Temperature (°C) | 75-91 |
| Drying Time (hrs) | 3.4-5.1 | |
| Melt Temperature (°C) | 225-272 | |
| Mold Temperature (°C) | 59.4-81.1 | |
Benefits of Acrylic Molding
- Excellent Optical clarity
- Excellent resistance to sunlight
iii. Excellent weatherability
- Rigid with excellent impact strength
- Low mold shrinkage
- Excellent dimensional stability
vii. Stretch forming that increases the bi-axial toughness
viii. Excellent resistance to most of the aqueous solutions.
- Low rate of water absorption
- No toxic composition
- You can recycle acrylic molds
The above factors make it very easy for you to mold acrylic into any form.
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