PMMA （Acrylic）injection molding
Looking for an easy, quick and rich experience when buying Acrylic(PMMA) products?
Look no further than our Acrylic(PMMA) injection molding one stop service.
From finding a product to cheaper alternatives, our team is available 24/7 to help you get the perfect Acrylic(PMMA) injection moldin for your projects.Don’t miss out on this invaluable resource – call us today!
Topworks Plastic Mold is an Acrylic injection molding company in China. We specialize in Acrylic molding and can therefore help you if you are looking for an injection molding company in China that deals with Acrylic plastic parts.
Injection Molding Inquiry
Essential Factors to Prepare
- Dimensions
- Tolerances
- Weight
- Surface Finish
- Type of Plastic
- Color Specifications
- Any Special Additives
- CAD Drawings (.dwg, .dxf)
- 3D Models (.x_t, .iges, .stp)
- Native CAD Files (.prt, .asm)
- PDF Technical Drawings
- Prototype Images
- Initial Order Quantity
- Estimated Annual Volume
- Lead Time Expectations
- Production Process Requirements
- Quality Standards
- Cost Targets
- Payment Terms
- Preferred Suppliers
- Geographic Preferences
- Assembly Needs
- Packaging Requirements
- Shipping Preferences
We have a wealth of experience in designing, tooling, and manufacturing Acrylic injection molding products at competitive prices worldwide. As a result, Topworks is able to offer the best standards of quality.
Hence, we are proud to be one of the few companies that can provide products from conception to reality, utilizing our wide range of PMMA injection molding services, creating Acrylic parts, manufacturing, and delivering Acrylic injection parts.
No matter if you’re working on a concept or a work-in-progress, we make every step of the process in the Acrylic injection molding simpler.
“I’m glad to inform you that all plastic parts are perfect!!! We are delighted, and therefore there are good chances to continue our relationship for any coming new project.”
CRISTIANO
ITALY
“Steven is a very detail-oriented project manager and engineer who can solve problems creatively and also provides excellent service. It was a pleasure working with him.”
DAVID
USA
Frequently Asked Questions for PMMA injection molding
PMMA Injection Molding FAQ
PMMA (acrylic) injection molding heats plastic pellets to 220-270°C and injects them into a mold to form parts.
Features: 92% transparency, UV resistant, excellent weather resistance. Common uses: automotive lights, optical lenses, displays.
Transparency: 92-93%, near glass quality
Heat resistance: Up to 80-90°C
Strength: 65-75 MPa, but brittle
Weather resistance: Excellent UV stability
Shrinkage: 0.2-0.8%
Drying: 80°C for 3-4 hours (critical!)
Barrel temp: 220-270°C
Mold temp: 60-90°C
Pressure: 60-120 MPa
Speed: Slow to medium injection
Bubbles/haziness: Dry thoroughly, reduce barrel temp
Flow marks: Increase mold temp to 80-90°C
Stress cracking: Lower injection speed, add annealing
Sink marks: Increase holding pressure and time
Yellowing: Reduce barrel temp, minimize residence time
1. Material: Dry for 4+ hours thoroughly
2. Mold: Mirror polish (Ra<0.01μm)
3. Process: Mold temp 70-90°C, slow-medium speed
4. Post-process: Anneal at 70-80°C for 2-4 hours
Wall thickness: 2-4mm, variation <15%
Draft angle: 1.5-3 degrees
Corner radius: Minimum 1-2mm
Ribs: 50-60% of wall thickness
Tolerance: ±0.08-0.15mm
vs PC: PMMA has better clarity and scratch resistance, but PC has 30x higher impact strength
vs PS: PMMA has superior weather resistance and doesn’t yellow
vs Glass: PMMA is 50% lighter and shatter-resistant, but less scratch resistant
Best for: Outdoor optical applications