Technical Information & Molding Conditions
Whitening Resistance
Hot Water Whitening Resistance
GR-F grade is a core-shell type rubber particle with excellent resistance to hot water whitening.
Total light transmittance (%)
Haze
Specimen: Melt-extruded film (50 μm)
Measuring method: Immersion in warm water at 95°C → air purge → 5 minutes at room temperature → measurement
Stress Whitening (Bending Whitening)
General PMMA Film
Bending and whitening
GR-F Grade
No bending whitening
Stress-Strain Curve
Comparative data for GR-F grade film alone and film with 20 wt% optical grade (heat resistant) PARAPET™ HR-S added.
Specimen: Melt-extruded film (75 μm)
Test speed: 200 mm/min
Capillary Flow Data
Please Contact Us if you need data by temperature.
Weatherability
Optical Property Transition
GR-F(YI value)
GR-F(ΔE)
Measuring method: ISO 4892-2 (xenon)
Irradiation intensity: 60W/m2 (300-400nm)
Black standard temperature: 65°C
Relative humidity: 50%R.H.
Cycle conditions: 120-minute cycle (irradiation + water spray: 18 min, irradiation: 102 min)
Specimen: Melt-extruded film (75 μm)_UV absorber formulation
Film Production Conditions (Melt Extrusion)
