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GPolymers™U400 series - An Innovation eye and face protection Material 
UV protection in order to filter out most of the UV radiation that is harmful to the eyes up to 380nm.Gpolymers™UV400 are available for 100 % UV protection (up to 400 nm). 
optical lenses : 
“UV 400 cut-off” 
 100% UV protection.

Gpolymers™U400 series also has advantages over other lens materials in terms of mechanical strength and cost-effective thermoplastic processing as well as low weight.

Gpolymers™U400 series lenses can be further improved in terms of scratch resistance,anti-fogging properties and anti-reflex properties by means of surface treatment.

Gpolymers™U400 series with an absorption edge of 400 nm absorb all light within the UV range of the spectrum.

Transmittance can be set for partial or 100% absorption. 
It is impossible to produce the large number of possible colors for sunglasses and laser safety goggles economically on our large-scale production lines 
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Market have 2 grades availability:

Gpolymers™U400-TP26 
•injection molding, 
•MVR (300 °C/1.2 kg) 11.0 cm3/10 min 
•IZOD notched impact strength based on ISO 180-A 3.2 mm thickness (90 kJ/m2). 
•Clear water-white Transparent color, 
•good optical properties. 
•Luminous transmission > 89 %, measured at 1 mm wall thickness. 
 •“UV 400 cut-off” With 100% UV protection 
•applications : sunglasses and goggles. 
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Gpolymers™U400-TP31 
•injection molding, 
•MVR (300 °C/1.2 kg) 6.0 cm3/10 min 
•High viscosity 
•IZOD notched impact strength based on ISO 180-A 3.2 mm thickness (90 kJ/m2). 
•Clear water-white Transparent color,good optical properties, 
•Luminous transmission > 89 %, measured at 1 mm wall thickness. 
•“UV 400 cut-off” With 100% UV protection 
•applications : sunglasses and Safetyglasses

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Preprocessing: 
Max. Water content  :  0.02 % 
Drying temperature : 120 °C 
Drying time : Circulating air drying oven (50 % fresh air) : 4-12 h 
Fresh air dryer (high speed dryer) : 2-4 h 
Dry air dryer : 2-3 h 
Processing Melt temperature : 280-320 °C 
Mold temperature : 80-120 °C