Every Laripur thermoplastic polyurethane grade from Shore A 66 to Shore D 77, sorted by hardness, with the chemistry and the applications COIM publishes for each. Pick the part, the environment and the hardness, and the finder narrows 25 grades to three. Samples ship from North American stock.
Answer what you know. One input is enough to start, and every input you add narrows the list. The finder scores each grade on the chemistry its data sheet states, its hardness, the applications COIM lists for it and whether it is supplied for extrusion or molding. It never sees your part, so treat the result as the shortlist to sample.
Results update as you change an input.
Shore hardness is measured by pressing an indenter into the material under a spring load (ASTM D2240). Shore A uses a blunt indenter and reads flexible materials. Shore D uses a sharper indenter and takes over once the material stops flexing easily. The scales overlap: Shore A 95 lands near Shore D 46, which is where the Laripur range changes scale.
Hardness sets stiffness, sealing force and how a part wears. It does not set how the part survives oil, hot water or cold. That is the soft-segment chemistry, and two grades with the same durometer reading can fail in opposite environments. Polyester vs polyether TPU covers the chemistry choice, and TPU durometers covers what each band of hardness feels like in a part.
Soft and flexible. Flexible soles, soft seals, slip and grip surfaces. Laripur 6518, Laripur 7025, Laripur 7560.
The working band for hose, film, cable jackets, belts, sport soles and most seals. Laripur 8125, Laripur 8225, Laripur 2102-85AE, Laripur 8025, Laripur 8860EG, Laripur 9060, Laripur 2103-90AE, Laripur 9025, Laripur 2203-93A, Laripur E 107-93A.
Semi-rigid. Stiff tubing and profile, ski boots, technical moldings, cattle tags. Laripur 4525EG, Laripur 5260, Laripur 5225, Laripur 5725, Laripur 5760, Laripur 5925.
Rigid and load-bearing. Wheels, casters, structural parts, rigid ski boot shells. Laripur 6325, Laripur 6560, Laripur 72D25, Laripur 71D60, Laripur 7711.
Sorted softest to hardest. Chemistry is the soft segment stated on each grade's COIM data sheet. VICAT is the softening point (ASTM D1525) and abrasion loss is DIN 53516, both from the same sheets. The last column is the application list COIM publishes for the grade. Each grade name opens its catalog page with the full property table, the drying and temperature profile and the packaging.
| Grade | Chemistry | Hardness | VICAT | Abrasion loss | COIM lists it for |
|---|---|---|---|---|---|
| Laripur 6518 | Polyester (plasticized, transparent) | Shore 66 A | 145 °F | 35 mm³ | High flexibility soles, Transparent parts, Parts bonded to cast polyurethane, Slip and abrasion surfaces |
| Laripur 7025 | Polyester | Shore 70 A | 140 °F | 30 mm³ | Tool overmolding, Technical injection molded parts, Hose and profile, Film, Compounding |
| Laripur 7560 | Polyether | Shore 77 A | 158 °F | 35 mm³ | Seals, Technical injection molded parts, Hose and tubing, Cable jacketing, Profile and film, Wet service parts |
| Laripur 8125 | Polyester | Shore 83 A | — | 40 mm³ | Sport soles, Wheels and casters, Screen elements, Hose and profile, Transmission belts and film, Wet service parts |
| Laripur 8225 | Polyester | Shore 83 A | 163 °F | 30 mm³ | Sport soles, Wheels and casters, Screen elements, Technical injection molded parts, Hose and profile, Transmission belts and film |
| Laripur 2102-85AE | Caprolactone ester | Shore 84 A | 192 °F | 30 mm³ | Watch belts and straps, Bellows, Seals, Technical injection molded parts, Hose and profile, Transmission belts and film |
| Laripur 8025 | Polyester | Shore 84 A | 163 °F | 30 mm³ | Sport soles, Wheels and casters, Screen elements, Masks and technical parts, Hose and profile, Transmission belts and film |
| Laripur 8860EG | Polyether | Shore 86 A | 171 °F | 35 mm³ | Cable jacketing, Hose and tubing, Profile and film, Outdoor parts, Technical injection molded parts, Wet service parts |
| Laripur 9060 | Polyether | Shore 88 A | 176 °F | 35 mm³ | Cable jacketing, Profile and film, Tags and technical parts, Wet and buried service, Flame retarded parts |
| Laripur 2103-90AE | Polyether | Shore 90 A | 208 °F | 35 mm³ | Hose and profile, Transmission belts, Film and sheet, Technical injection molded parts, Wet service parts |
| Laripur 9025 | Polyester | Shore 90 A | 219 °F | 30 mm³ | Sport soles, Wheels and casters, Screen elements, Technical injection molded parts, Hose and profile, Transmission belts and film |
| Laripur 2203-93A | Polyether | Shore 92 A | 293 °F | 30 mm³ | Pneumatic seals, High performance seals, Dynamic sealing, Wet service seals |
| Laripur E 107-93A | Caprolactone ester | Shore 93 A | 347 °F | 35 mm³ | Heavy duty hydraulic seals, High temperature seals, Rod and piston seals, Wear rings and back-up rings |
| Laripur 4525EG | Polyester | Shore 46 D | 120 °F | 35 mm³ | Hose and tubing, Profiles, Transmission belts, Film and sheet |
| Laripur 5260 | Polyether | Shore 50 D | 248 °F | 35 mm³ | Ski boots, Technical injection molded parts, Hose and tubing, Cable jacketing, Profile and film, Wet and cold service |
| Laripur 5225 | Polyester | Shore 51 D | 261 °F | 35 mm³ | Hose and tubing, Transmission belts, Film and sheet, Technical injection molded parts, Sport soles, Cattle tags |
| Laripur 5725 | Polyester | Shore 56 D | 280 °F | 35 mm³ | Hose and profile, Transmission belts, Film and sheet, Technical injection molded parts, Sport soles, Cattle tags |
| Laripur 5760 | Polyether | Shore 56 D | 266 °F | 35 mm³ | Ski boots, Technical injection molded parts, Wet service parts |
| Laripur 5925 | Polyester | Shore 59 D | 295 °F | 40 mm³ | Technical injection molded parts, Footwear components, Structural parts |
| Laripur 6325 | Polyester | Shore 62 D | 313 °F | 40 mm³ | Technical injection molded parts, Footwear components, Structural parts |
| Laripur 6560 | Polyether | Shore 65 D | 280 °F | 35 mm³ | Ski boots, Technical injection molded parts, Structural parts in wet service |
| Laripur 72D25 | Polyester | Shore 67 D | 365 °F | 40 mm³ | Wheels and caster parts, Technical injection molded parts, Footwear components, Load-bearing parts |
| Laripur 71D60 | Polyether | Shore 70 D | — | 50 mm³ | Ski boots, Technical injection molded parts, Sheet extrusion, Profiles, Cold service parts |
| Laripur 7711 | Engineering TPU | Shore 77 D | 195 °F | 150 mm³ | Structural technical parts, Rigid moldings, High tear parts, Cold service parts |
| Laricol 1465 | Polyester reactivable adhesive | Pellets, no durometer published | — | — | Reactivable bonding, Solvent applied adhesive systems, Bonds exposed to fats, oils or plasticizers |
Extrusion versions carry an end code on the order (EG, EF, HFM), so tell us the process as well as the grade. Grades not in this table, including flame-retardant and UV-stabilized versions, are supplied on request.
Send the grade name, the process and the part. We match by hardness, chemistry type and processing profile and ship material to test. Cross-references are available on request.
Request a cross-referenceChemistry first. Hot water, steam, immersion or cold service score the polyether grades highest and the caprolactone ester grades next. Oil, fuel, abrasion or heat score the polyester grades highest, with caprolactone ester close behind. A part that sees both water and oil puts the caprolactone ester grades on top, which is why both of them are seal grades.
Then hardness. A grade inside your target band scores full marks, a grade within a few points scores partially, and the rest drop out. Then the application, matched against the list COIM publishes for each grade, and finally the process, because some grades are supplied for extrusion only and some for molding only.
The finder cannot see your drawing, your fluid or your cycle time. It gives you the three grades worth sampling. The sample tells you the rest, and it ships the same business day from North American stock.
Laripur TPU, North American stock
Tell us the part and where it runs. We name the Laripur grade, send the data sheet and ship a sample from North American stock. A person replies within one business day. Not sure which grade you need? Start with the TPU hardness chart and grade finder.
We reply within one business day, usually sooner. If you need it faster, call 603-431-5050.
While you wait: polyester vs polyether TPU or the grade finder.
Thermoplastic polyurethane is sold from about Shore A 60, which is as soft as a rubber band, up to Shore D 80, which is close to a rigid plastic. The Laripur range on this page runs from Shore A 66 on Laripur 6518 to Shore D 77 on Laripur 7711, so one supplier covers the span from a flexible sole to a load-bearing wheel.
The two scales overlap. Shore A is measured with a blunter indenter and is used for flexible materials; Shore D uses a sharper point and is used once a material stops flexing easily. A reading of Shore A 95 is roughly Shore D 46, which is why the Laripur range switches scales there: the softest D grade, Laripur 4525, is 46 D. A part that needs to flex and seal is specified in Shore A. A part that needs to hold shape under load is specified in Shore D.
Most TPU rod and piston seals sit between Shore A 90 and Shore A 95, hard enough to resist extrusion into the gland gap and soft enough to follow the sealing surface. Laripur E 107-93A, 2203-93A and 2103-90AE are the seal grades in this table. Fluid and temperature then decide the chemistry: hydraulic oil and heat point to an ester grade, water-based fluids and cold to a polyether grade.
Yes, and this is the mistake the finder is built to catch. Hardness sets stiffness. The soft-segment chemistry sets whether the part survives its environment. A polyester and a polyether grade at Shore A 90 read the same on a durometer and behave differently in hot water, in oil and in the cold. Choose the chemistry first, then the hardness.
Yes. Send the grade you run now, the process and the part, and we match a Laripur grade by hardness, chemistry type and processing profile, then ship material to test. We do not publish a grade-to-grade table because hardness and chemistry alone do not decide whether a substitution survives in a real part.
Samples typically ship the same business day from North American stock with the data sheet attached. Tell us the grade, or the part if you want us to pick the grade, and where it ships.
