Product Description

Versollan™ OM 1255NX-1 is a high performance TPU alloy designed for thin-wall overmolding onto polycarbonate (PC), ABS, PC/ABS and copolyester substrates.

Features

-Superior Adhesion to PC, ABS, PC/ABS, PC/PBT and Copolyester

-Proven Track Record

-Improved Grip with Matte, Rubbery Finish

Color

Natural

Processing Method

Injection Molding

Mechanical Properties English SI Test Method
Shore Hardness, 10 sec delay 60 A 60 A ASTM D2240
Specific Gravity 1.05 1.05 ASTM D792, 23/23°C
Tensile Strength 1200 psi 8274 kPa ASTM D412-Die C, 2hrs,23°C
Elongation at Break 700 % 700 % ASTM D412-Die C, 2hrs,23°C
100% Modulus 280 psi 1931 kPa ASTM D412-Die C, 2hrs,23°C
300% Modulus 490 psi 3378 kPa ASTM D412-Die C, 2hrs,23°C
Tear Strength 220 pli 39 kN/m ASTM D624
Thermal/Rheological Properties English SI Test Method
Melt Flow Rate @ 190°C, 2160g 8 g/10 min 8 g/10 min ASTM D 1238
Melt Flow Rate @ 200°C, 5000g 125 g/10 min 125 g/10 min ASTM D 1238
Apparent Viscosity @ 200°C 11170/sec 13000 cPs 13 Pa-sec ASTM D 3835
Aged Properties English SI Test Method
Compression Set, 22 hrs @ RT 26 % 26 % ASTM D 395B
Coloring
Color concentrates with ethyl vinyl acetate (EVA) or polyether-based urethane carriers are most suitable for coloring Versollan™ OM 1255NX-1. Typical letdown ratios are 50:1 to 25:1 - loading levels should be as low as possible to minimize the effect on hardness. A high color match consistency can be obtained by the use of precolored compounds available from GLS. Polypropylene (PP) based color concentrates are not recommended because they significantly affect adhesion of the TPE to the substrate. Concentrates based on TPE should not be used. The final determination of color concentrate suitability should be determined by customer trials.
Purging
Purge thoroughly before and after use of this product with a low flow (0.5 - 2.5 MFR) polyethylene (PE) or polypropylene (PP).

Regrind
Regrind levels up to 20% can be used with Versollan™ OM 1255NX-1 with minimal property loss, provided that the regrind is free of contamination. To minimize losses during molding, the melt temperature should remain as low as possible. The final determination of regrind effectiveness should be determined by the customer.



Shrinkage Properties English SI Test Method
Flow 0.020 - 0.024 in/in 0.020 - 0.024 mm/mm ASTM D 955
Residence Time
Versollan™ OM 1255NX-1 should not be left in the barrel for extended idle periods (greater than 5 minutes).
Drying Time English SI
Suggested Max. Moisture 0.1 % 0.1 %
Drying Temperature 125 - 130 °F 52 - 54 °C
Suggested Drying Time 3 - 4 hours 3 - 4 hours
Suggested Dewpoint -40  F -40  C
Molding Temperatures English SI
Rear 325 - 365 °F 163 - 185 °C
Center 335 - 385 °F 168 - 196 °C
Front 350 - 410 °F 177 - 210 °C
Nozzle 350 - 410 °F 177 - 210 °C
Mold 70 - 120 °F 21 - 49 °C
Molding Parameters English SI
Screw Speed 75 - 125 rpm 75 - 125 rpm
Injection Speed 1 - 5 in/sec 25 - 127 mm/sec
1st Stage - Boost Pressure 200 - 800 psi 1379 - 5516 kPa
2nd Stage - Hold Pressure 70 % of Boost 70 % of Boost
Back Pressure 25 - 50 psi 172 - 345 kPa
Hold Time (Thick Part) 4 - 10 sec 4 - 10 sec
Hold Time (Thin Part) 1 - 3 sec 1 - 3 sec