Pleiger Plastics’ types of polyurethanes are marketed under the registered name Plei-Tech®. The Plei-Tech® name is known globally as quality, high-performance polyurethanes. The proper selection of suitable types of polyurethane depends on a variety of considerations. These include temperature and environmental concerns, chemical resistance, cut and tear resistance, hardness, abrasion resistance, dynamic performance, and cost. Most molded parts require consideration of two or more of these characteristics, and a Plei-Tech® elastomer can be custom molded with these needs in mind.
There are often several Plei-Tech® elastomers that meet a client’s need in a particular application. In these situations, prototype parts of each compound are produced and field-tested, so our client can decide on the most cost-effective polyurethane compound. This method prevents costly “over-engineering” polyurethane parts and saves money.
| Polyester Type 1 | Polyester Type 2 | Polyester Type 3 | Polyester Type 4 | Polyether | Polycaprolactone | Polycarbonate | |
|---|---|---|---|---|---|---|---|
| MDI | PT-22 PT-31 | PT-23 | PT-24 | PT-25 | PT-92 | PT-93 | |
| NDI | PT-15 | PT-15 | PT-12 | PT-13 | PT-66 | ||
| TDI | PT-00 | PT-95 | |||||
| PPDI | PT-10 | PT-10 | PT-10 |
Pleiger Plastics provides polyurethane material properties data, including hardness and physical properties, in helping select the correct elastomer for your application or product.
PLEI-TECH® 00
Plei-Tech® 00 is a polyester compound developed in conjunction with Plei-Tech® 22 to offer alternatives to Plei-Tech® 15. Plei-Tech® 00 offers outstanding tear strength, good abrasion resistance, excellent resistance to oil products, and is suited for moderate dynamic loading. Plei-Tech® 00 is available in 80°A to 95°A. PleiTech® 00 falls short of Plei-Tech® 22, Plei-Tech® 23, Plei-Tech® 24, Plei-Tech® 25 and Plei-Tech® 15 in solvent resistance. The maximum service temperature is 200°F. The standard color is amber. However, this product is not color stable.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | ||
|---|---|---|---|---|---|
| Hardness A | 80 | 90 | 95 | ||
| Hardness D | — | — | 50 | ||
| 100% Modulus | D 412 | PSI | 700 | 1150 | 2000 |
| 300% Modulus | D 412 | PSI | 1350 | 2200 | 4000 |
| Tensile Strength | D 412 | PSI | 7200 | 7300 | 7400 |
| Ultimate Elongation | D 412 | % | 600 | 525 | 450 |
| Split Tear | D 470 | PLI | 130 | 150 | 175 |
| Die C Tear | D 624 | PLI | 490 | 600 | 760 |
| Resilience | D 2632 | % | 33 | 27 | 27 |
| Compressive odulus | D 575 | PSI | |||
| 5% | 160 | 250 | 475 | ||
| 10% | 275 | 400 | 750 | ||
| 15% | 375 | 550 | 1050 | ||
| 20% | 525 | 775 | 1450 | ||
| 25% | 725 | 1100 | 1950 | ||
| Brittle Point | D 746 | F | — | — | |
| Specific Gravity | D 792 | 1.25 | 1.27 | 1.29 | |
| Compression Set (22 Hours at 70C) |
D 385 Method B |
% | 35 | 32 | 33 |
PLEI-TECH® 10
Plei-Tech® 10 is a high-performance polyurethane best suited for the most demanding applications. Plei-Tech® 10 offers outstanding cut, abrasion, and solvent resistance. In addition to exceptional physical properties, Plei-Tech® 10 also provides excellent dynamic properties. The one setback of the material is that it takes a high compression set. Plei-Tech® 10 is available in 80°A, 90°A, 93°, and 97°A hardnesses. The maximum service temperature is 275°F. Only available in natural color (cream). Typical applications are bumpers, diaphragms, rollers, and hydrocyclones.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | ||
|---|---|---|---|---|---|
| Hardness A | 80 | 92 | 97 | ||
| Hardness D | — | — | 55 | ||
| 100% Modulus | D 412 | PSI | 550 | 1300 | 1825 |
| 300% Modulus | D 412 | PSI | 1070 | 2000 | 2250 |
| Tensile Strength | D 412 | PSI | 4950 | 6300 | 5150 |
| Ultimate Elongation | D 412 | % | 525 | 720 | 595 |
| Split Tear | D470 | PLI | 93 | 645 | 145 |
| Die C Tear | D624 | PLI | 390 | 705 | 635 |
| Resilience | D 2632 | % | 45 | 55 | 53 |
| Compression Set (24 Hours at 70°C) |
D385 Method B |
% | 36 | 53 | 40 |
| Compressive Modulus | D 575 | PSI | |||
| 5% | — | — | — | ||
| 10% | — | — | — | ||
| 15% | — | — | — | ||
| 20% | — | — | — | ||
| 25% | — | — | — | ||
| Brittle Point | D 746 | F | — | — | — |
| Specific Gravity | D792 | 1.19 | 1.19 | 1.09 | |
PLEI-TECH® 15 (Vulkollan®)
Plei-Tech® 15 is also known as Vulkollan® (trademark name of Covestro). Plei-Tech 15 offers excellent abrasion and cut resistance and is well suited for high dynamic loading. Plei-Tech® 15 performs well in solvent and oil environments and is available in hardness from 60°A to 60°D. This product is also known as a foam with tremendous dynamic performance and abrasion resistance. This compound has MSHA approval. The maximum service temperature is 200°F. Color is natural: light brown that turns dark brown when exposed to UV light, and no properties are lost in this color transformation.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | |||
|---|---|---|---|---|---|---|
| Hardness A | 63 | 73 | 83 | 93 | ||
| Hardness D | ||||||
| 100% Modulus | D 412 | PSI | 500 | 650 | 800 | 1500 |
| 300% Modulus | D 412 | PSI | 990 | 1350 | 1400 | 2100 |
| Tensile Strength | D 412 | PSI | 3950 | 4500 | 5500 | 6000 |
| Ultimate Elongation | D 412 | % | 450 | 450 | 500 | 700 |
| Split Tear | D470 | PLI | 36 | 43 | 175 | 200 |
| Die C Tear | D624 | PLI | 295 | 375 | 475 | 750 |
| Resilience | D 2632 | % | 46 | 47 | 55 | 48 |
| Compression Set (24 Hours at 70°C) |
D385 Method B |
% | 19 | 17 | 15 | 15 |
| Taber Abrasion (H-18 Wheel 5000 Cycles) |
D-1044-78 | mg Loss | 7 | 7 | 8 | 16 |
PLEI-TECH® 22
Plei-Tech® 22 is a polyester compound developed by Pleiger Plastics Company as an alternative to Plei-Tech® 15. Plei-Tech® 22 offers excellent abrasion and solvent resistance compared to other polyurethane compounds. Plei-Tech® 22 is available in hardness from 40°A to 60°D. Plei-Tech® 22 is not suited for applications involving high dynamic loading. This compound is MSHA approvable. The maximum service temperature is 190°F. The standard color is natural (cream). However, color coding is available. Typical applications are scrapers, snowplows, and squeegees.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | ||||
|---|---|---|---|---|---|---|---|
| Hardness A | 60 | 70 | 80 | 85 | 95 | ||
| Hardness D | — | — | — | — | — | ||
| 100% Modulus | D 412 | PSI | 240 | 480 | 680 | 1100 | 1810 |
| 300% Modulus | D 412 | PSI | 350 | 1000 | 1600 | 2900 | 3600 |
| Tensile Strength | D 412 | PSI | 2700 | 4600 | 5600 | 6000 | 7000 |
| Ultimate Elongation | D 412 | % | 600 | 490 | 460 | 400 | 450 |
| Split Tear | D 470 | PLI | 40 | 70 | 80 | 95 | 210 |
| Die C Tear | D 624 | PLI | 155 | 350 | 370 | 410 | 690 |
| Resilience | D 2632 | % | 50 | 27 | 23 | 25 | 30 |
| Compression Set (24 Hours at 70°C) |
D 385 Method B |
% | 20 | 30 | 25 | 20 | 35 |
| Taber Abrasion (H-18 Wheel 5000 Cycles) |
D-1044-78 | mg Loss | 54 | 40 | 22 | 17 | — |
| Specific Gravity | D 792 | 1.2 | 1.22 | 1.23 | 1.24 | 1.26 | |
PLEI-TECH® 23
Plei-Tech® 23 is a polyester polyurethane. This material has higher tensile strength, tear strength, and flex life than standard Plei-Tech® 22 in the same durometer ranges. This compound is not as good in dynamics, has a higher compression set, and has slightly lower solvent resistance as Plei-Tech® 22. Available from 60°A to 88°A and can be colored. Maximum service temperature 190°F. Typical applications are scrapers and sheets.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | |||
|---|---|---|---|---|---|---|
| Hardness A | 60 | 70 | 80 | 85 | ||
| 100% Modulus | D412 | PSI | 300 | 500 | 700 | 650 |
| 300% Modulus | D 412 | PSI | 500 | 950 | 1600 | 1700 |
| Tensile Strength | D 412 | PSI | 3200 | 4500 | 5900 | 6100 |
| Ultimate Elongation | D 412 | % | 525 | 475 | 475 | 650 |
| Split Tear | D470 | PLI | 70 | 90 | 110 | 140 |
| Die C Tear | D624 | PLI | 220 | 340 | 460 | 540 |
| Resilience | D 2632 | % | 37 | 30 | 28 | 25 |
| Compression Set (22 Hours at 70°C) |
D385 Method B |
% | 30 | 35 | 40 | 45 |
| Specific Gravity | D792 | 1.2 | 1.22 | 1.23 | 1.26 | |
PLEI-TECH® 95
Plei-Tech® 95 is a polyether polyurethane. Plei-Tech® 95 offers excellent performance in dynamic loading, shock absorption, and water environments. Plei-Tech® 95 falls slightly short of other Plei-Tech® compounds in abrasion and cut resistance. Plei-Tech® 95 is available in hardnesses from 80°A to 75°D. Plei-Tech® 95 is not suited for applications involving solvents or petroleum-based oils. This product has general MSHA approval. The maximum service temperature is 200°F. The standard color is blue. However, this material is not color stable. Typical applications are bumpers, balls, and hydrocyclones.
| PHYSICAL PROPERTY | TEST METHOD | UNITS | HARDNESS | ||||
|---|---|---|---|---|---|---|---|
| Hardness A | 80 | 90 | 95 | — | — | ||
| Hardness D | — | — | 50 | 60 | 75 | ||
| 100% Modulus | D 412 | PSI | 580 | 1100 | 2200 | 3200 | 4000 |
| 300% Modulus | D 412 | PSI | 850 | 1650 | 4050 | 6500 | — |
| Tensile Strength | D 412 | PSI | 3550 | 4080 | 5600 | 7100 | 7500 |
| Ultimate Elongation | D 412 | % | 730 | 450 | 350 | 310 | 230 |
| Split Tear | D470 | PLI | 82 | 65 | 125 | 115 | 145 |
| Die C Tear | D624 | PLI | 300 | 370 | 500 | 630 | 950 |
| Resilience | D 2632 | % | 56 | 50 | 42 | 42 | — |
| Compression Set (24 Hours at 70°C) |
D385 Method B |
% | 41 | 25 | 32 | 28 | — |
| Compressive Modulus | D 575 | PSI | |||||
| 5% | 110 | 210 | 500 | 1000 | 2300 | ||
| 10% | 180 | 350 | 840 | 1600 | 3950 | ||
| 15% | 270 | 490 | 1200 | 2200 | 5100 | ||
| 20% | 375 | 680 | 1650 | 3000 | 6000 | ||
| 25% | 525 | 940 | 2100 | 4000 | 8000 | ||
| Brittle Point | D 746 | F | — | -94 | -94 | -94 | -94 |
| Specific Gravity | D792 | 1.07 | 1.08 | 1.13 | 1.16 | 1.2 | |
LUBRITHANE
Lubrithane is a polyurethane with special additives to provide a reduced coefficient of friction. Lubrithane is ideal for belt scraping applications because of its good abrasion resistance and low coefficient of friction. Lubrithane is available in hardnesses from 60°A to 50°D. The maximum service temperature is 190°F. The color is black.
| Typical Frictional Properties (Coefficient of Friction) (ASTM D 1894-87) |
||||
|---|---|---|---|---|
| Lubrithane on Rubber | UHMW on Rubber | |||
| Static | Kinetic | Static | Kinetic | |
| Dry | 0.18-0.20 | 0.160-0.17 | 0.44-0.46 | 0.34-0.44 |
| Wet | 0.19-0.20 | 0.13-0.14 | 0.51-0.54 | 0.35-0.40 |
| Lubrithane on Steel | UHMW on Steel | |||
| Static | Kinetic | Static | Kinetic | |
| Dry | 0.15-0.17 | 0.14-0.17 | 0.12-0.18 | 0.12-0.18 |
| Wet | 0.16-0.18 | 0.16-0.18 | 0.12-0.18 | 0.12-0.18 |
| Rubber – Goodyear Conveyor Belting 220 PIW WingfootII Steel finish = ASTM D 1894-87 |
||||
| TYPICAL PHYSICAL PROPERTIES | |||
|---|---|---|---|
| ASTM | UNIT | LUBRITHANE | |
| Hardness | D-2240-81 | Shore A | 93 |
| Tensile Strength | D-412-80 | PSI | 4993 |
| Elongation & Break | D-412-80 | % | 403 |
| Stress | D-412-80 | PSI | |
| At 100% | 1862 | ||
| At 200% | 2165 | ||
| At 300% | 2762 | ||
| Die C Tear Strength | D-624-81 | PSI | 618 |
| Taber Abrasion | D-1044-78 | Mg Loss | 23.5 |
PLEI-TECH® 15 FOAM
Plei-Tech® 15 Foam is an open/closed-cell polyurethane foam-based upon Vulkollan® (Plei-Tech® 15) chemistry. This product has tremendous dynamic performance and abrasion resistance and is used where high-frequency, low loads are present. Density ranges are from .35 g/cc to .60 g/cc. This material is ideal for bumpers and cushions which require high displacements. The maximum service temperature is 200°F. Color is natural: light brown that turns to dark brown when exposed to UV light. (No properties are lost in this color transformation.)
| PHYSICAL PROPERTY | TEST METHOD | UNITS | DENSITY | ||||
|---|---|---|---|---|---|---|---|
| Density | ISO 845 | Kg/M^3 | 350 | 450 | 550 | 650 | 750 |
| gr/cc | .35 | .45 | .55 | .65 | .75 | ||
| Lb/Ft^3 | 21.8 | 28.1 | 34.3 | 40.6 | 46.8 | ||
| Tensile Strength | ISO 37 | Mpa | 4.0 | 5.5 | 7.5 | 9.0 | 10.0 |
| Ultimate Elongation | ISO 37 | % | 390 | 430 | 465 | 475 | 490 |
| Tear Resistance | ISO 34 | KN/M | 8 | 12 | 16 | 20 | 24 |
| Resilience | ISO 4662 | % | 60 | 60 | 60 | 60 | 60 |
| Compression Set | ISO 815 | % | |||||
| 70 Hours at 23°C | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | ||
| 70 Hours at 70°C | 4.0 | 6.0 | 8.0 | 8.0 | 9.0 | ||
| Compressive Modulus | 40mm Cube at 50mm/min |
Mpa | |||||
| 10% | 0.08 | 0.15 | 0.30 | 0.40 | 0.60 | ||
| 20% | 0.13 | 0.26 | 0.45 | 0.65 | 0.85 | ||
| 30% | 0.19 | 0.37 | 0.61 | 1.10 | 1.60 | ||
| 40% | 0.26 | 0.48 | 0.80 | 1.40 | 2.30 | ||
| 50% | 0.45 | 0.70 | 1.40 | 3.20 | 4.00 | ||
| 60% | 0.75 | 1.35 | 2.60 | 4.40 | 6.80 | ||
| 70% | 2.00 | 3.10 | 5.20 | – | – | ||
