TPE

TerraFlex® K6145A-NAT
Thermoplastic Elastomer
Technical Datasheet
Product Description

45 Shore A TPE (Styrenic Block Copolymer based) for injection molding and extrusion applications, low compression set up to 125C, good wet and dry grip, and adhesion (overmolding or coextrusion) to Polypropylene.

General
Availability
North America
Europe
Latin America
Asia/China
Africa
Appearance
Black
Processing Method
Injection Molding
Extrusion
OverMolding
Coextrusion
Properties
Good Adhesion
Good Adhesion
Good Compression Set
Good Compression Set
Good Ozone
Good Ozone
Good Colorability
Good Colorability
Low Gloss, matte finish
Low Gloss, matte finish
Key Applications
Consumer Applications
Consumer Applications
Automotive
Automotive
Appliance Components
Appliance Components
Sporting Goods
Sporting Goods
Household
Household
Flexible Grips
Flexible Grips
Physical
Value (SI)
Test Method
Density/Specific Gravity
0.98 g/cm3
ISO 1183, ASTM D1238
Melt Mass-Flow Rate, 230°C/2.16 kg load
3 g/10min
ASTM D1238
hardness
Value (SI)
Test Method
Durometer Hardness
Shore A, 10 Sec, Injection Molded
48
ISO 868, ASTM D2240
Shore A, 10 Sec, Exruded
45
ISO 868, ASTM D2240
Elastomers
Value (English)
Value (SI)
Test Method
Tensile Strength at Break
797 psi
5.5 MPa
ISO 37, ASTM D412
Elongation at Break
680 %
680 %
ISO 37, ASTM D412
100% Modulus
160 psi
1.1 MPa
ISO 37, ASTM D412
Tear Strength
140 lbs/in
24.5 kN/m
ISO 34-1, ASTM D624
Compression Set
Value (English)
Value (SI)
Test Method
72h/23 °C (73 °F)
21 %
21 %
ISO 815, D395B
22h/70 °C (158 °F)
28 %
28 %
ISO 815, D395B
22h/100°C (212 °F)
42 %
42 %
ISO 815, D395B
22h/125°C (257°F)
49 %
49 %
ISO 815, D395B
Service Temperature
Value (SI)
Brittleness Point
-60 °C
Dynamic Service Temperature
125 °C
Environmental Resistance
Ozone
Alcohol
UV
Weak Acid
Water
Detergent

Processing Guide


Injection Molding

Melt Temperature: 200-220 °C
Screw Speed: 50 to 200 rpm
Injecjon Rate: Fast
Back Pressure: 50-100 psi (0.345-0.689 MPa)
Cushion 0.125-0.25 in (3.18-6.35 mm)
Screw L/D Ratio: 16:1.0 to 20:1.0
Screw Compression Ratio: 2.0:1.0 to 2.5:1.0
C: 170-200 180-210 190-220 200-230 10-50
F: 338-392 356-410 374-428 392-446 50-122

Extrusion

Drying Temperature: 82 °C (180 °F)
Drying Time: 2.0-3.0 hr
Melt Temperature: 190-200 °C
Die/Adaptor 190-210 °C (374-410 °F)
Screw Speed: 100 to 200 rpm
C: 160-180 170-190 180-200 190-210 190-210
F: 320-356 338-374 356-392 374-410 374-410
  • It is not necessary to predry this material.
  • In the event of moisture accumulation or evidence of splay, the material can be dried for 2-3 hours at 150-160F (65-70C)
  • For more information please contact us via customerservice@compounding.us


The above test results are obtained from laboratory injection molded ISO samples and cannot be used directly to determine end-use or design specification. The customer should determine the suitability to his/her application through their internal testing procedure. Datasheet values represent a statistical average or product properties and they may change with incr. data points.


Alterra Headquarters:
473 US-46, Clifton, NJ 07011
+1(973) 340-4000
customerservice@compounding.us
alterraholdings.com
Indiana Plant:
2213 Kilion Ave
Seymour, IN 47274