Petrorays brings to you Cast Polyurethanes rods, Sheets, pipes & rollers which are very cost effective and dependable Elastomers. Cast polyurethane combines the performance advantages of engineering plastics, metals &ceramics along with the flexibility & resilience of rubber. We are manufacturers, suppliers, and exporters of polyurethane sheet in Mumbai, India to all over the world. Cast polyurethane is very popular for their high impact strength, load bearing capacity, high resilience, high abrasion resistance, and excellent resistance to oil and grease.
The applications of polyurethanes - where the actions of bearing, sliding, forming, stripping, damping, cushioning, resting or rolling are involved.
For better results &optimum performance and longer life, selection of appropriate grades of Cast polyurethane is important. Polyurethane rod can be formulated with permutation & combination of selective chemicals & additives.
TENSILE PROPERTIES :
| HARDNESS | ASTM TEST | 30 A | 60 A | 75 A | 85 A | 90 A | 95 A | 60 D |
| Break, psi | D - 412 | 380 | 4500 | 5500 | 6000 | 4500 | 5500 | 6500 |
| 100% modulus, psi | D - 412 | 80 | 250 | 350 | 600 | 1100 | 1800 | 3000 |
| 300% modulus, psi | D - 412 | 170 | 600 | 1000 | 1500 | 2100 | 4000 | 6500 |
| Elongation, % | D - 412 | 515 | 500 | 500 | 500 | 450 | 320 | 300 |
| Break Set, % | D - 412 | - | 5 | 10 | 10 | 10 | 10 | 15 |
| Modulus of Elasticity, psi | D - 638 | - | 5 | 15 | 25 | 50 | 90 | 125 |
COMPRESSION PROPERTIES(Shape factor 0.56):
| HARDNESS | ASTM TEST | 30 A | 60 A | 75 A | 85 A | 90 A | 95 A | 60 D |
| Deffection, psi @ 5% | D - 575 | 15 | 30 | 70 | 180 | 310 | 450 | - |
| Deffection, psi @ 10% | D - 575 | 25 | 70 | 140 | 390 | 625 | 890 | - |
| Deffection, psi @ 15% | D - 575 | 34 | 110 | 220 | 560 | 875 | 1170 | - |
| Deffection, psi @ 20% | D - 575 | 38 | 160 | 280 | 690 | 1125 | 1400 | - |
| Deffection, psi @ 25% | D - 575 | 44 | 220 | 330 | 800 | 1350 | 1600 | - |
COMPRESSION SET, % :
| HARDNESS | ASTM TEST | 30 A | 60 A | 75 A | 85 A | 90 A | 95 A | 60 D |
| Method A @ 700C | D - 395 | - | 10 | 8 | 5 | - | 1 | 10 |
| Method B @700C | D - 395 | 9 | 10 | 15 | 25 | 30 | 40 | 50 |
| Durometer, Shore ± 5 | D - 2240 | 30A | 60A | 75A | 85A | 90A | 95A | 60D |
| Tear Property,pll Die C | D - 624 | 90 | 200 | 250 | 400 | 400 | 450 | 700 |
ABRASION RESISTANCE, TABOR :
| HARDNESS | ASTM TEST | 30 A | 60 A | 75 A | 85 A | 90 A | 95 A | 60 D |
| H 18 @ 1000gm load mg.loss 1000 cycles | C- 501 | - | 30 | 40 | 40 | 30 | 40 | 80 |
| Specific Gravity | D - 792 | 1.2 | 1.26 | 1.26 | 1.26 | 1.10 | 1.15 | 1.18 |
| Base | - | Ester | Ester | Ester | Ester | Ether | Ether | Ether |
| TYPICAL APPLICATIONS | 30 A | 60 A | 75 A | 85 A | 90 A | 95 A | KEY PHYSICAL PROPERTIES |
| BUMPER PADS | - | - | X | X | - | - | Bashore Resilience |
| CUTTER BARS | - | - | - | - | X | X | Tear; Compression /Deflection |
| BUSHINGS | - | - | X | X | X | X | Abrasion, Tear |
| TUMBLER LININGS | - | - | - | X | - | - | Bashore Resilience |
| ISOLATION VIBRATION | - | - | - | X | X | X | Resilience; Compression /Deflection |
| CUTTING SURFACES | - | - | - | X | X | X | Tear; Compression, Deflection |
| DIE CUTTING PADS | - | - | - | X | X | X | Tear; Compression, Deflection |
| WEAR PADS | - | - | X | X | - | - | Tear; Compression, Deflection |
| IDLER ROLLERS | - | - | - | - | X | X | Tear; Compression, Deflection |
| SQUEEGEES | - | X | X | - | - | - | Tear; Solvent Resistance |
| FORK LIFT TIRES | - | - | - | - | X | X | Heat Build Up; Resilience |
| PRINTING ROLLS | X | X | - | - | - | - | Solvent Resistance, Compression Set, Abrasion |
| OIL PIPELINE PARTS | - | - | X | X | X | X | Oil and Abrasion Resistance |
| HYDRAULIC SEALS | - | - | - | - | X | X | Oil Resistance; Compression Set |
| GRAIN SHOOT LININGS | - | - | - | X | - | - | Sliding Abrasion |
| OFFICE EQUIP. ROLLERS | - | X | X | - | - | - | Tear, Abrasion Resistance |
| ELEVATOR WHEELS | - | - | - | - | X | X | Compression Set; Compression / Deflection; Heat Build Up |
| PAPERMILL ROLLS | - | - | - | - | X | X | Heat Build Up; Hydrolysis Resistance |
| GASKETS | X | X | X | X | X | X | Compression Set; Chemical Resistance |
