PBT
Strong, stiff plastic, good machining characteristics, bearing and wear, and chemical resistance
PBT (polybutylene terephthalate) is a strong, stiff engineering plastic with excellent machining characteristics, chemical resistance, and bearing and wear properties. PBT is often used for food processing machinery applications when low moisture absorption, resistance to staining, or resistance to cleaning chemicals is required.
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STANDARD SIZES
| SHEET |
Dimensions:
12 in x 24 in – 24 in x 48 in |
Thickness:
.250 in – 2.500 in |
| ROD |
Outside Diameter:
0.250 in – 6 in |
OPTIONS AVAILABLE
| COLOR |
Natural, Black |
Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request.
PBT MATERIAL OPTIONS
PBT Unlubricated– HYDEX® 4101 has been designed to provide users with polyester based material that is able to withstand the higher levels of impact often associated with industrial environments. It is a very good wear material in addition to having low moisture up-take, and good dimensional stability.
PBT Lubricated– HYDEX® 4101L is the lubricated version of HYDEX® 4101.
Tech Tip– PBT is ideal for applications such as cams, bearings, gears, food pistons, wear strips, scraper blades, valve bodies and conveyor components.
Typical properties of PBT
| |
UNITS |
ASTM TEST |
PBT |
PBT INTERNALLY
LUBRICATED |
| Tensile strength |
psi |
D638 |
8,690 |
7,200 |
| Flexural modulus |
psi |
D790 |
330,000 |
390,000 |
| Izod impact (notched) |
ft-lbs/in of notch |
D256 |
1.5 |
0.7 |
| Heat deflection temperature @ 264 psi |
°F |
D648 |
130 |
195 |
| Maximum continuous service temperature in air |
°F |
|
245 |
221 |
| Water absorption (immersion 24 hours) |
% |
D570 |
0.08 |
0.07 |
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Need more information about this material? Use our interactive plastic properties table
