My Site
Skip to Content

TPUs geared for demanding automotive tasks

July 13, 2006

Staff

Pearlthane D11T85UV and D11T93 thermoplastic polyurethanes (TPUs) from Merquinsa NA Inc., Sparta, N.J., reportedly have met or exceeded North American Tier 1 automotive specs for gear-shift knobs and spring insulators.

Printer-friendly version

Pearlthane D11T85UV and D11T93 thermoplastic polyurethanes (TPUs) from Merquinsa NA Inc., Sparta, N.J., reportedly have met or exceeded North American Tier 1 automotive specs for gear-shift knobs and spring insulators. The Pearlthane D11T85UV TPU line, based on a proprietary polycaprolactone technology, is reportedly easily overmolded in typical two-shot injection-molding applications. They also sport good wearability and scratch resistance.

The special UV resistance and colorability of this 85A Shore A TPU makes it suitable for demanding two-shot molding automotive-interior applications. It adheres well to a wide range of polar substrates such as ABS and PC. Currently, this TPE can be overmolded onto a variety of rigid substrates to provide a "leatherlike" feel, as well as resist wear and abrasion. The material ships in clear pellet form for coloring.

Pearlthane D11T93 resists oil, grease, and abrasion. Its high-temperature and hydrolysis performance versus standard polyester TPUs make it an option for elastomeric underhood applications. Additional grades will be available later this year.

MAKE CONTACT
Merquinsa NA Inc., (973) 362-1280,
www.merquinsa.com

Property Test Method D11T93 D11T85UV
Shore A hardness ASTM D-2240 93 86
Tensile strength, kpsi ASTM D-412 5.8 5.8
Elongation @ break, % ASTM D-412 525 600
Modulus @100 % elongation, kpsi ASTM D-412 1.23 0.87
Modulus @300 % elongation, kpsi ASTM D-412 2.5 1.45  
Tear strength, lb/in. ASTM D-624 (Die C) 685 515
Compression set (70 hr @ 73° F), % ASTM D-395 20 20
Compression set ( 24 hr @ 158° F), % ASTM D-395 29 35
Moisture content % MQSA 44 <0.05 <0.1

Comments

Leave a comment

The content of this field is kept private and will not be shown publicly.

Acceptable Use Policy