Cellular polyurethane (ZPU)
Polyurethane foam, often simply referred to as PU foam, is an extremely versatile foam that is available in various degrees of hardness and densities. It is characterized by excellent insulation and damping properties and is therefore used in areas such as furniture manufacturing, the automotive industry and construction. PU foam can be produced in both flexible and rigid forms, which underlines its adaptability to different requirements. Its ability to adapt to complex shapes while providing comfort and protection makes PU foam a valuable material in many industries.
- Also known as PU or PUR foam
- Open cell -> water absorption
- Ester density: approx. 20 - 60 kg/m³
- Ester-based filter foams (air filtration) from approx. PPI 10 to PPI 100
- Ether-based density: approx. 17 - 50 kg/m³
- Ether-based filter foams (water filtration) from approx. PPI 10 to PPI 45
- PUR ether and ester foams with flame-retardant finish (MVSS 302, UL 94)
- PUR prepolymer qualities with extremely high tear resistance
- Compression hardness: approx. 2.5 kPa to 6 kPa
- Environmental compatibility: contain no CFC or HCFC (ZPU partly Ökotex 100)
- Max. Dimensions approx. 2,000 x 1,200 x 1,000 mm
- Temperature resistance from approx. -40 to + 110 °C
Areas of application
- Seals
- Damping elements
- Insulations
- Packaging
Applications
- Vehicle construction
- Toolmaking
- Electric
- Toys
- Packaging
- Leisure time
- Construction industry
- Furniture industry
- Mechanical engineering
- Space travel
- Household appliances
- Medicine & Orthopaedics
- Aviation
- Trade fair construction
Ester foams
- Very regular cell structure
- Good shock absorption thanks to high strength
- good UV resistance
- High resistance to oils, greases and organic solvents
- generally not lightfast (artificial and natural) --> yellowing of the foam, which has no influence on the physical properties
- physiologically harmless
- MVSS 302 and UL94 listed qualities also available
Ether foams
- High elasticity with pronounced resilience
- Extremely soft to very hard compression hardnesses
- Good load-bearing capacity
- High resistance to water and aqueous liquids (hydrolysis resistance)
- Good resistance to acids and alkalis
- generally not lightfast (artificial and natural) --> yellowing of the foam, which has no influence on the physical properties
- physiologically harmless
- MVSS 302 listed qualities also available
- Antistatic properties
