Alveolen

Alveolen - physically crosslinked, closed cell polyolefin foams, produced in continuous sheets, horizontally foamed with two process skins.

Density range*: 25 - 250 kg/m³
Thickness range*: 3 - 12 mm  
Width range*:  1300 - 2500 mm  

*depending on type/grade

• thickness range between 3 and 12 mm (single layer). Multi layer up to 40 mm
• excellent physical properties
• can be supplied with flame retardant characteristics (in accordance with German DIN 4102 - B1and B2, Automotive FMVSS 302)
• choice of softness according to type and grade
• regular, closed-cell structure
• excellent thermoplastic properties, in particular thermo and pressforming characteristics
• wide working temperature range
• excellent thermal insulation characteristics
• very good impact sound insulation properties
• low water absorption values
• very low water vapour permeability
• good weatherability
• inertness to most chemicals
• no odour
• ecologically and chemically neutral
• safe disposal by recycling, dumping or incineration

Alveolen types are defined by specific characteristics and are based on different formulations:

• NA standard type
• NA CO electrically conductive
• NA FMV flame retardant according to FMVSS 302
• NA FR flame retardant according to DIN 4102 - B2
• NA FR HF halogen free, flame retardant
• NA FRB improved flame retardant (DIN 4102 - B1 on special request)
• NE soft and elastic
• NEE excellent soft and elastic
• NEP, PE foam fulfilling Ford leakage specification
• NES extremely soft and elastic
• NLB improved heatpress formability
• NP (A) FRV, PP foam, fulfilling VW’s PV 3357 specification
• NP DM G soft and good dimensional stability
• NP G, PP foam, high dimensional stability and vacuumformability
• NP FR G good dimensional stability, vacuumformability and FMVSS 302
• NPA FR G high dimensional stability, vacuumformability and FMVSS 302
• NSR II highly super soft and elastic
• NT increased hardness and temperature stability
• NT FR flame retardant according DIN 4102 - B2 and FMVSS 302

* on request any Alveolen type is available in SAN formulation