Common features of Crastin® thermoplastic polyester resin include mechanical and physical properties such as stiffness and toughness, heat resistance, friction and wear resistance, excellent surface finishes and good colourability. Crastin® thermoplastic polyester resin has excellent electrical insulation characteristics and high arc-resistant grades are available. Many flame retardant grades have UL recognition (class V-0). Crastin® thermoplastic polyester resin typically has high chemical and heat ageing resistance.
The good melt stability of Crastin® thermoplastic polyester resin normally enables the recycling of properly handled production waste.
If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed.
Crastin® thermoplastic polyester resin typically is used in demanding applications in the electronics, electrical, automotive, mechanical engineering, chemical, domestic appliances and sporting goods industry.
Crastin® S600F20 BK851 is an unreinforced, lubricated, medium viscosity polybutylene terephthalate resin for injection moulding.
VALUE
TEST NORM
Resin Identification
PBT
ISO 1043
Part Marking Code
>PBT<
ISO 11469
VALUE
UNIT
TEST NORM
Melt volume-flow rate
13
cm3/10min
ISO 1133
Melt mass-flow rate
16
g/10min
ISO 1133
Temperature
250
°C
ISO 1133
Load
2.16
kg
ISO 1133
Melt mass-flow rate, Temperature
250
°C
ISO 1133
Melt mass-flow rate, Load
2.16
kg
ISO 1133
Intrinsic viscosity
1.08
-
ISO 307, 1157, 1628
Moulding shrinkage, parallel
1.7
%
ISO 294-4, 2577
Moulding shrinkage, normal
1.6
%
ISO 294-4, 2577
VALUE
UNIT
TEST NORM
Tensile Modulus
2500
MPa
ISO 527-1/-2
Yield stress
58
MPa
ISO 527-1/-2
Yield strain
5
%
ISO 527-1/-2
Nominal strain at break
40
%
ISO 527-1/-2
Charpy notched impact strength, 23°C
5
kJ/m2
ISO 179/1eA
Izod notched impact strength, 23°C
4
kJ/m2
ISO 180/1A
Poisson's ratio
0.38
-
-