PU Resin
Optical Clear Casting Resin
Clear Polyurethane Resin
Transparent polyurethane casting resin offering optical clarity and smooth surface finishes for lighting and lenses.
| Compatible Technologies | Vacuum Casting |
| Tensile Strength | 75 MPa |
| Heat Deflection Temperature (HDT) | 100°C |
| Hardness | 87 (Shore D) |
| Available Colors | Clear |
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Why Choose Transparent Casting Resin (Optical)?
Transparent Optical Casting Resin simulates PMMA (Acrylic) and PC (Polycarbonate) thermoplastics for prototypes requiring glass-like clarity and high light transmission. Produced via Vacuum Casting technology, these parts are bubble-free and crystal clear. It is the definitive solution for automotive headlight lenses, lighting fixtures, display screens, and clear cosmetic containers, delivering visual quality indistinguishable from mass-produced parts.
Advantages
Optical Clarity: With proper polishing, it achieves over 90% light transmission and glass-like transparency.
Tinting Options: Can be produced in various transparent colors (e.g., smoked, red, blue) by adding pigments while maintaining clarity.
Cosmetic Excellence: Offers the highest level of surface finish and aesthetic appeal among casting resins.
UV Resistance: UV-stabilized formulations ensure the material resists yellowing over time, maintaining its premium look.
Limitations
Labor Intensive: Achieving optical clarity requires extensive manual sanding and polishing after casting, which can increase costs.
Scratch Resistance: Being a PMMA mimic, it is rigid but not as scratch-resistant as glass; careful handling is advised.
Heat Resistance: Typically ranges between 60°C – 80°C; heat management should be considered for high-power lighting applications.
Mechanical Properties
Metric Measurements
Elastic Modulus
2.7 GPa
Elongation at Break
9 %
Density
1.06 g/cm³
Nylon-like Technical Resin FAQ
What industries use Transparent Optical Casting Resin?
Transparent Optical Casting Resin is widely used in the automotive industry for headlight and taillight lenses, in consumer electronics for display covers, and in the cosmetic industry for clear bottle prototypes.
Are parts made with Transparent Casting Resin fully clear like glass?
Yes. Transparent Optical Casting Resin is cast under vacuum to eliminate air bubbles. After our professional polishing process, transparent casting resin parts become as clear as glass or PMMA (Acrylic).
Does Transparent Optical Resin yellow over time?
The high-quality Transparent Optical Casting Resins we use contain UV stabilizers. This ensures that parts made from transparent casting resin resist yellowing and maintain their clarity much longer than standard resins.
Can Transparent Casting parts be colored?
Yes. Transparent Optical Casting Resin can be tinted during the casting process to create “transparent colored” parts (e.g., transparent red for taillights or smoked transparent covers).
How is the scratch resistance of Transparent Resin parts?
Transparent Optical Casting Resin is rigid but not as scratch-resistant as glass. Depending on project needs, a hard coating can be applied to transparent resin parts to improve scratch resistance.
Is Transparent Casting Resin heat resistant?
Generally, Transparent Optical Casting Resins offer heat resistance between 60°C and 80°C. For high-power LED applications, ensure the heat generation does not exceed the limits of the transparent resin.
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