Orthopaedics / footwear industry
• Protective layer on toes of alpine, hiking and safety footwear• Anti-slip layer under orthopaedic soles
• Anti-slip layer under overshoes
Durable and flexible
Foamed TPU film is especially suitable as a non-slip, wear-resistant protective layer on the outside surface of shoes, such as safety shoes, alpine boots or hiking boots. TPU retains its special properties even in wet conditions, and is therefore often used as part of orthopaedic insoles.
Resistance to cold and heat
Together with the excellent resistance to abrasion and tearing, the flexibility of TPU even at very low temperatures makes this plastic highly suitable for the components of conveyor systems. TPU products can sustain a temperature of up to 110°C for a short period. However, prolonged exposure to temperatures higher than 80°C should be avoided.
TPU undergoes thermoplastic deformation at 90-120°C.
Resistance to oils and UV
TPU is resistant to oils and aliphatic hydrocarbons. Unleaded gasoline can cause the TPU to swell slightly due to the aromatic compounds in the fuel. TPU has excellent resistance to UV light.
Limitations
TPU is not resistant to concentrated acids and alkalis, chlorinated and aromatic hydrocarbons, alcohols and hot water.
Light weight
TPU from Vreeberg is ‘foamed’. This technique enables a considerable weight reduction to be achieved, and yet the resistance to wear is superior to that of other flexible materials, such as rubber.
Sustainable
The foamed TPU that we produce is recyclable. Scrap material from production is re-used, and we also accept scrap materials returned by customers.
Pliable
TPU is easier to process than rubber and can be readily formed around irregular shapes, such as a shoe. The stiffness of rubber is a limitation on its suitability.
Soft and flexible to the touch
Pleasant tactile experience, suitable for ‘soft touch’ surfaces.
No skid marks
TPU leaves no skid marks, making it a great choice for footwear and anti-slip feet for furniture.
Also suitable for water-based adhesives
TPU is suitable for both solvent and water-based adhesives.
TPU is also harmed by contact with oils and fats, making it less suitable for applications in the food industry.
Moreover, the material is less suitable for fire-retardant or extinguishing applications. This is because the addition of a flame retardant adversely affects the flexibility of TPU.
Do you have the need for a thin, elastic film? Vreeberg also produces TPE: Thermoplastic Elastomer