TPU Lumps

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TPU Lumps Specification

Length
Varies; typically 2-10 cm pieces

Thickness
Irregular (as lumps)

Hardness
70-95 Shore A

Moisture Content
<0.1%

Molecular Formula
(C25H42N2O6)n

Alkali Resistance
Good

Birefringence
Low

Weight
Varies per lump, bulk packed

Particle Size
Varies, not uniform

Operating Temperature
-40C to +85C

Ph Level
Neutral (6.5 - 7.5)

Viscosity
Varies with grade; 1000-3000 cps @ 25C

Color
Off White, Light Yellow

Acid Resistance
Good

Chemical Name
Thermoplastic Polyurethane (TPU)

Other Names
TPU Lumps, TPU Scrap

CAS No
9009-54-5

Purity
>99%

Appearance
Off White to Beige Lumps

Physical State
Solid

Raw Material
Polyol and Diisocyanate

Molecular Weight
Variable (typically 50,000 - 300,000 g/mol)

Dissolving Time
Depends on solvent; typically 1-2 hours in DMF

Insoluble %
<1%

About TPU Lumps

The offered TPU Lumps have got many applications including caster wheels, power tools, instrument panels, sporting goods, and a lot more. These lumps are developed in our state of the art production division making the best use of advanced tools and equipment. TPU is an acronym for thermoplastic polyurethane, which is a class of polyurethane plastic. It has got myriad properties including transparency, high density, flexibility, and resistivity to the oil and greasy material. And therefore, these TPU Lumps are highly demanded in the market.

Exceptional Physical Properties

With notable tensile strength and superior elongation at break, TPU Lumps deliver robust mechanical performance. Operating efficiently from -40C to +85C, these lumps are highly impact-resistant, moderately UV-resistant, and self-extinguishing, making them ideal for industrial, automotive, and footwear applications.

Eco-Friendly and Versatile

TPU Lumps are valued for their complete recyclability and chemical neutrality (pH 6.5-7.5). Their off-white to light yellow appearance and irregular lump morphology make them suitable for custom processing, delivering environmental benefits alongside excellent utility across diverse sectors.

FAQs of TPU Lumps:

Q: How are TPU lumps typically processed for reuse or manufacturing?

A: TPU lumps can be shredded, melted, or dissolved in solvents (such as DMF) for reprocessing into new products. Their physical properties allow easy transformation through standard thermoplastic methods such as injection molding, extrusion, and compounding.

Q: What makes TPU lumps advantageous for industrial applications?

A: TPU lumps provide high tensile strength, significant elasticity, and good chemical resistance. Their self-extinguishing nature and recyclability further make them an eco-friendly and safe choice for automotive, electronics, and construction materials.

Q: When should TPU lumps be used instead of other polymers?

A: TPU lumps are preferred when high impact strength, elongation, and durability are required, especially in applications like footwear soles, cable sheaths, hoses, and sporting goods. Their ability to withstand wide temperature ranges and mechanical stress makes them superior in demanding environments.

Q: Where are TPU lumps best stored to ensure optimal quality?

A: To preserve their properties, TPU lumps should be stored in dry, cool conditions, away from direct sunlight and moisture. Using sealed bulk or jumbo bags helps prevent contamination and protects against humidity-related degradation.

Q: What is the process for recycling TPU lumps?

A: Recycling of TPU lumps involves collecting, cleaning, and mechanically reprocessing them, most often via melting and remolding. Because they are 100% recyclable, they can be reused in new manufacturing cycles without significant loss of material performance.

Q: How can TPU lumps be used in manufacturing?

A: TPU lumps are commonly processed into films, sheets, and molded items for the automotive, footwear, medical, and electronics industries. Their adaptability to various shaping techniques makes them highly versatile.

Q: What are the benefits of using TPU lumps supplied from Italy?

A: TPU lumps manufactured and exported from Italy offer consistent purity (>99%), trusted quality standards, and reliable supply chains, ensuring high performance and compliance for international industrial applications.

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