Oxford Polymers® Compounder and Developer of Engineering Grade Thermoplastics

Alloys

PC/ABS resins are Polycarbonate/Acrylonitrile-Butadiene-Styrene (PC/ABS) high impact amorphous thermoplastic blends that combine ease of processing with low-temperature ductility. This resin family provides excellent heat and impact resistance, as well as outstanding aesthetics. PC/ABS Resin blends offer an excellent design solution when both appearance and durability are important.

PC/PBT alloys are a blend of semi-crystalline polyester (typically polybutylene terephthalate, PBT, or polyethylene terephthalate, PET) and polycarbonate (PC). The PC/PBT resin family offers good chemical resistance, great impact resistance even at low temperatures, heat resistance, and outstanding aesthetic and flow characteristics. Typical applications are parts that require excellent impact strength and improved chemical resistance compared to straight polycarbonate.

PEI/PC is a blend of polyetherimide and polycarbonate resulting in a family of products with high heat resistance then straight polycarbonate and improved flow characteristics compared to PEI. This product is also much more cost effective then straight PEI compounds.

PC/ABS, PC/PBT, PEI/PC Specifications

PC/ABS PC/PBT PEI/PC
PC/ABS 604-I PC/ABS 604-I-FR PC/PBT 604-I PEI/PC 901 PEI/PC 10GF
  Description ASTM Test Method General Purpose Flame Retardant, Standard Flow, UL High Impact, Excellent Chemical Resistance General purpose, High heat alloy 10% glass reinforced
Physical Melt Flow rate, g-10min D1238 3 to 14 25 to 45 5 to 15
Specific gravity D792 1.15 1.18 1.22 1.27 1.33
  Mold Shrinkage E-3 in/in D955 5-7 in/in 5-7 in/in 6-9 in/in 5-7 in/in 4-5 in/in
Tensile Strength Break, PSI D638 7,800 8,000 7,500 14,500 15,000
Tensile Strength Yield, PSI D638 7,600 7,800 7,300 14,500 15,000
Mechanical Flexural Strength, PSI D790 10,500 13,500 10,800 21,000 21,000
Flexural Modulus, PSI x 1000 D790 320 380 300 475 550
Notched Izod Impact strength ft-lb/in D256 9.0 12.0 16.0 1.4 1.1
  Gardner Falling Dart Impact in-lbs D3029 320 320 8.0(t)    
Thermal* HDT @66 PSI F D648 235 180 210 365 375
  HDT @264 PSI F D648 210 165 200 350 360
Flammability UL 94 @1/16" UL94 HB V-0 HB V-0 V-0
  UL 94 @1/8" UL94 HB V-0 HB V-0 V-0
Processing method***** IM IM IM IM IM
Drying Temp F 170-180 170-180 220-230 225-250 225-250
Typical Processing Conditions Units drying Time(hours) 3-4** 3-4** 4-6** 3-4** 3-4**
Melt Temp (F) 525-575 475-525 475-525 600-650 600-650
Mold temp(F) 160-200 120-180 150-190 200-300 200-300
Front Zone(F) 500-575 470-530 500-540 620-660 620-660
Middle Zone(F) 490-560 450-510 490-530 610-650 610-650
  Rear Zone(F)   480-550 430-490 480-520 600-640 600-640
* All mechanical and thermal testing conducted on 1/8 thick unpigmeneted test samples
(Structural foam grades tested with foamed parts, with a 10-20% weight reduction.)
** Do not exceed 8 hours
*** Do not exceed 24 hours
****Processing Methods: Injection molding(IM), Structural Foam(SF), Extrusion(E)
(t)Notched Izod @ 40F, ft-lb/in. ASTM D256