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Cello® hr 290/71 is a grey, soft foam made from melamine resin, with an embossed surface, which is air-permeable and slightly densified (special Cello® process).

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typical applications

Rail vehicles, utility vehicles, buses, medical technology, civil engineering and building, air-conditioning and ventilation systems, machine and industrial plant construction


key benefits

-          - High sound absorption values

-          - Fulfills high requirements regarding fire performance

-          - High temperature resistance / Low thermal conductivity

-          - Very good chemical resistance against carbon hydrides and alcohol (din 53428)

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flammability

• fmvss 302, din 75 200, fulfilled
• iso 3795, burning rate < 100 mm/min
• din 5510-2, s4, sr2, st2 (10-100mm) and fed ≤ 1 fulfilled
• nf p 92-501, m1 (10-100mm) • ece r-118, appendix 6, 7 and 8 fulfilled (hr 290/o)
• directive 95/28/eg, appendix iv, v + vi, fulfilled (hr 290/o)
• din 4102, tested according to b1 (hr 290/o)
• ul94, 94v-0, ul94 hf-1 (hr 290/o) • cen/ts 45545-2, requirement r1, hl-2 fulfilled (hr 290/o), (25mm)


impedance tube in accordance with din 10 534-2

pilt


thermal conductivity of melamine foam
0.035 w/(m. k) according to din 52612 at 10°c


temperature resistance
long-term: -50°c to +180°c
short-term: up to +200°c


density of melamine foam
din en iso 845: 9.5 ± 1.5 kg/m³


basic product
hr 290/71 nk: no self-adhesive equipment


other product options

hr 290/71 sk:      self-adhesive rear face
hr 290/o:            as hr 290/71 but surface uncoated and without embossing


dimensions, untrimmed*)
produkt               thickness (mm)                 sheets (mm)        rolls (mm)
hr 290/71            10, 20, 30, 40, 50              1250 x 1250        not available


Other thicknesses / dimensions on request
Ready-to-use parts acc. to your specifications or drawing


storage
• Dry and in closed rooms
• Self-adhesive materials: max. 6 months

*)untrimmed: useful width guaranteed as ordered, some layers (e.g. non-woven, film, foam) may partially exceed this width.

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