Laripur 6560
PTMG polyether TPU at Shore 65 D with very good resistance to hydrolysis and microbial attack. Injection moulded ski boots and technical items.
PTMG polyether TPU at Shore 65 D with very good resistance to hydrolysis and microbial attack. Injection moulded ski boots and technical items.
Laripur 6560 is a PTMG polyether based TPU at Shore 65 D, the hardest polyether on the Shore D scale in this catalog apart from 71D60. COIM states that it has very good resistance to hydrolysis and microbial attack, and designed it for injection moulding of ski boots and technical items.
Tensile strength is 9600 psi at 340 percent elongation, with tear strength of 175 N/mm and a flexural modulus of 57000 N per square mm. The VICAT softening point is 280 degrees F.
COIM's sheet for this grade publishes only a moulding profile.
| Property | Typical value |
|---|---|
| Specific gravity | 1.18 g/cm3 (ASTM D792) |
| Shore hardness | 65 D (ASTM D2240) |
| Abrasion loss | 35 mm3 (DIN 53516) |
| Tensile modulus 50 percent | 3200 psi (ASTM D412) |
| Tensile modulus 100 percent | 3800 psi (ASTM D412) |
| Tensile modulus 300 percent | 7200 psi (ASTM D412) |
| Tensile strength | 9600 psi (ASTM D412) |
| Elongation at break | 340 percent (ASTM D412) |
| Tear strength | 175 N/mm (ASTM D624) |
| VICAT softening point | 280 degrees F (ASTM D1525) |
| Flexural modulus | 57000 N/mm2 (ASTM D790) |
| Form | Regular pellet |
Typical values from the manufacturer's technical data sheet. They describe the product, they are not a specification. We will send the current TDS and the batch documentation your qualification needs.
Tell us the binder system, the property you are targeting, and the volume you expect. We will confirm the grade, send the documentation, and ship a sample from North American stock.
COIM's first listed use.
Named on the data sheet.
Where a flexural modulus of 57000 N per square mm is needed and the part stays damp.
Dry before processing at 175 to 195 degrees F for 3 hours, preferably in a dehumidifying drier fed by air with a dew point below minus 22 degrees F. Skipping the drying step is the most common cause of splay and bubbles in a TPU part.
COIM's suggested moulding profile runs zone 1 at 395 degrees F, zone 2 at 405, zone 3 at 415 and the nozzle at 405. Machine, screw and downstream equipment all move these, so treat them as a starting point.
Package sizes: 25 kg bags, or 500 kg and 1000 kg octabins.
Storage: Six months from the date of delivery, in the original sealed packaging, in a dry well ventilated place out of direct sun.
COIM does not consider the product dangerous. Read the safety data sheet before handling.
PTMG polyether. COIM states very good resistance to hydrolysis and microbial attack for this grade.
Laripur 6325 at Shore 62 D. It is slightly stronger at 10000 psi tensile against 9600 psi and considerably stiffer, 53000 N per square mm against 57000 here, so the two are close in stiffness and differ mainly in wet service behaviour.
It behaves as a rigid engineering plastic. Elongation at break is 340 percent and the flexural modulus is 57000 N per square mm. It is chosen for stiffness and tear resistance, not for rebound.
COIM's published sheet for 6560 carries a moulding profile only. For a hard polyether with a released extrusion version, look at Laripur 71D60EG at Shore 70 D.
Yes. We send the Technical Data Sheet (TDS) and Safety Data Sheet (SDS) on request, in the manufacturer's current revision. Use Request TDS or SDS above and tell us what your qualification review needs.
Polyester at Shore 62 D.
Harder polyether at Shore 70 D, with an extrusion version.
Softer polyether at Shore 56 D.
Soles, ski boots and footwear components, and how the grades are chosen.
Which chemistry survives hot water, and which survives oil and abrasion.
How to specify a grade when you have a part and not a grade number.
What Shore A and Shore D actually measure, and where the scales overlap.