Polyurethane prepolymer for casters is formulated with either TDI-based or MDI-based systems and is designed specifically for the production of high-performance caster wheels. The resulting polyurethane elastomer delivers excellent mechanical strength, abrasion resistance, and load-bearing capacity, making it ideal for industrial, commercial, and heavy-duty applications.
Advantages of Polyurethane Prepolymer for Casters
Enhanced Durability – Our caster wheels are engineered for extended lifespan, minimizing the need for frequent replacements due to their high wear resistance.
Outstanding Load Capacity – Designed to withstand substantial weights without bending or fracturing, ensuring reliability under heavy loads.
Superior Shock Mitigation – Engineered to absorb impacts effectively, resulting in reduced vibrations and operational noise for a smoother performance.
Efficient Rolling – Features low rolling resistance for improved maneuverability and efficiency in moving materials.
Resistance to Chemicals and Oils – Offers robust defense against aggressive industrial chemicals, prolonging the life of the caster wheels. Non-Marking and Floor-Friendly – Prevents floor scuffs and scratches while maintaining grip, safeguarding your flooring.
Versatile Temperature and Humidity Tolerance – Functions effectively across a broad range of temperatures and humidity levels, suitable for diverse environments.
Adjustable Hardness (Shore A to D) – Customizable to match specific caster requirements, from flexible treads to sturdy wheels, catering to a variety of applications.
Applications of Polyurethane Prepolymer for Casters Wheels
Industrial Casters: Used in heavy-duty material handling carts, factory equipment, and warehouse trolleys.
Medical Casters : Ideal for hospital beds, medical trolleys, and cleanroom equipment.
Automated Guided Vehicles : Ensures precision movement with minimal rolling resistance.
Furniture & Office Chair Casters : Provides smooth and silent movement on different floor surfaces.
Retail & Shopping Cart Wheels :Offers durability and non-marking performance for shopping carts.
Aerospace & Automotive Applications :Used in testing equipment, maintenance platforms, and transport trolleys.
Storage
Store in a cool and dry place and use up as soon as possible after opening;
It should be sealed with nitrogen if it cannot be used up at one time;
The original storage period is six months.
Packing
20kg or 200kg iron drum for the Polyurethane Prepolymer For Casters
| Component characteristics | Item | BQ25161-B | BQ25161-A | BQ2516-C | |||
| NCO content/% | 16.1 | - | - | ||||
| Operating temperature/℃ | 60 | 65 | 45 | ||||
| Viscosity/cps | 480 | 1300 | 30 | ||||
| Processing Procedure | Pre-polymer | BQ25161-B | |||||
| Hardness/Shore A | 70 | 75 | 80 | 85 | 93 | 55D | |
| BQ25161-B usage | 100 | 100 | 100 | 100 | 100 | 100 | |
| BQ25161-A usage | 150 | 130 | 110 | 80 | 55 | 30 | |
| BQ2516-C usage | 10.2 | 11 | 12 | 13.3 | 14.5 | 15.6 | |
| BQ3515-D/(A+B+C)(%) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.12 | |
| Physical properties of the elastomer | |||||||
| Hardness/Shore A | 70 | 75 | 80 | 85 | 93 | 55D | |
| Tensile strength/MPa | 33 | 35 | 41.5 | 43.6 | 48 | 47 | |
| 100% Modulus/MPa | 4.4 | 4.9 | 5.3 | 5.8 | 7.4 | 12.6 | |
| 300% Modulus/MPa | 9.7 | 10.4 | 11.8 | 12.5 | 15.6 | 21.4 | |
| Elongation / % | 600 | 570 | 556 | 550 | 520 | 520 | |
| Tear strength(Angle) /(KN/m) | 87 | 90 | 94 | 99 | 120 | 143 | |
| Tear strength(Trouser) /(KN/m) | 24 | 27 | 30 | 31.2 | 45 | 48 | |
| Rebound(30℃)/ % | 50 | 49 | 49 | 48 | 45 | 40 | |
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