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High impact hard resin lens series
	
 Parameters
| Reflective Index | 1.57, 1.61 | 
| UV | UV400, UV++ | 
| Designs | Spherical, Aspherical | 
| Coatings | UC, HC, HMC+EMI, SUPERHYDROPHOBIC, BLUECUT | 
| Available | Finished, Semi-finished | 
	
 Benefits
• Particularly resistant to high impact
• Easy edging, normal edging machines are fine
• Good optical features, higher ABBE value
• Suitable for drilling and mounting rimless frames
	
	
 Properties
| Ultravex | CR-39™ | 
 Poly  | 
Mid-Index | Hi-Index | |
| ABBE | 
 42  | 
 58  | 
 31  | 
34-41 | 32-42 | 
| Scratch Resistance (Bayer) | 
 0.5  | 
 1  | 
 0.2  | 
0.3-0.5 | 
 0.5  | 
| FDA Impact Resistance | 
 Pass  | 
 Fail  | 
 Pass  | 
 Fail  | 
Some Pass | 
| Specific Gravity | 
 1.16  | 
 1.32  | 
 1.22  | 
1.20-1.34 | 1.30-1.40 | 
| Refractive Index | 
 1.58  | 
 1.5  | 
 1.59  | 
1.53-1.57 | 1.59-1.71 | 
| Chemical Resistance | Good | Good | Unacceptable | Good | Good | 
	
 Processing
| 
 Ultravex  | 
CR-39™ | 
 Poly  | 
Mid-Index | Hi-Index | |
| Surfacing | Good | Very good | Difficult | Good | Good | 
| Tint Rate | Average | 
 Fast  | 
Non-tintable | Average | Fast | 
| Typical Center Thickness | 1.3mm | 1.88mm | 1.5mm | 1.5mm | 1.5mm |