Low Pressure Injection Service
The high-quality low-pressure infusion service provided by Zhuofei Technology is capable of producing end-use parts with production-level quality, whether it is rigid plastic or rubber material. As a leading low-pressure infusion service provider, Zhuofei Technology uses advanced low-pressure infusion technology, without expensive high-pressure molds, and can produce parts that meet high standards through precise processes and high-quality materials.
Zhuofei Technology's low-pressure infusion process provides precise part dimensions and excellent surface quality, ensuring that end-use parts meet production-grade standards. The final quality of the part depends on the accuracy of the mold, the geometry of the part and the material used. Typically, the shrinkage rate of low-pressure infusion parts is about +0.15%.
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Vacuum Casting Polyurethane Resins |
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Material Simulation |
Strength Shore |
Flexion(MPA) | TC Max |
Product Color Description |
Advantage Disadvantage |
Shrinkage |
| ABS TYPE | ||||||
| ABS | 83 shD | 1790 | 85 | Amber, white and black | Good resistance | 1 |
| ABS | 81 shD | 2200 | 93 | Dark Amber | Good resistance | 1 |
| PS chocs | 74 shD | 1500 | 70 | White/Black | Ideal | 1 |
| POLYPRO TYPE | ||||||
| PP | 75-83 shD | 600-1300 | 70 | White/Black | Good resistance | 1 |
| COLORABLE ELASTOMERS | ||||||
| Elastomer | 20-90shA | / | / | Milky white/Black | Good Blend | 1 |
| Elastomer | 30-90shA | / | / | Clear | Good Blend | 1 |
| HIGH TEMPERATURE | ||||||
| PC | 85 shD | 2254 | 105 | White/Black | High T℃ 105° | 1 |
| PS/ABS | 80 shD | 2300 | 120 | Black | IdealTG 120° | 1 |
| UL-VO | ||||||
| ABS | 83 shD | 1800 | 85 | White | 94V0 flame retarding | 1 |
| Loaded ABS | 87 shD | 3300 | 100 | Off White | V 0 far 25 | 1 |
| CLEAR | ||||||
| PMMA | 87 shD | 2100 | 100 | Clear | Coloration TG100° | 0.996 |
Available Finishes for Low Pressure Injection Parts
Parts have a smooth, satin-like finish due to the master pattern being bead-blasted matte. Clear and translucent parts with this finish will appear frosted. Matte finishes are useful for handheld and high-touch areas as it reduces fingerprint visibility.
A finish that includes some sheen but not high reflectivity. Semi-gloss finishes are in between high-gloss and matte, resulting in a smooth, easy-to-clean surface.
A highly reflective finish is made by polishing the master pattern before making the mold. High-gloss has a high sheen and will have the highest transparency for clear parts. High-gloss is useful for cosmetic models, cleanable surfaces, and lenses.
Zhuofei can provide additional processing, including custom textures, secondary finishes, painting, and more.
Low Pressure Injection Color Options
Polyurethanes can be blended with pigments to achieve a variety of colors. Naturally, a urethane may be amber to milky-white in color. Zhuofei’s clear urethane options are formulated to be colorless. Below are Zhuofei’s color options:
- Black
- Color-Match
- Natural (unpigmented)
- Clear (colorless)
Overview: What is Low-Pressure Perfusion?
Low-Pressure Injection is a material handling technique commonly used in manufacturing and engineering. This process involves injecting fluid materials (such as plastics, resins or other chemical materials) into a mold or structure at a pressure lower than normal. Low-Pressure Injection has several main applications: composite manufacturing, repair and reinforcement, production processes.