Pyrosorb

Pyrosorb

A flexible Class O polyurethane foam which offers excellent sound absorption coupled with exceptional fire retardant properties.

Product Description

PYROSORB is specified in many acoustic and thermal insulation applications owing to its superior fire performance. The material achieves Class 0 to the Building Regulations Document B Appendix  A Paragraph 12b thus being suitable for many building, heating and ventilation marine applications, and other areas where fire performance is an issue.

 

 

PROPERTIES

 

COLOUR : Black

 

DENSITY (Kg/m3) : 80 – 105

(BS 443 PI M2)

 

HARDNESS (N) : 180

 

TENSILE STRENGTH : > 70

(KPa) (BS4443 PI H3A)

 

COMPRESSION SET : < 25%

(BS 443 PI H6 75.1)

 

WORKING TEMP : -40 to +120°C

RANGE (°C)

 

FIRE TEST PERFORMANCE

 

FMVSS302 : Self extinguishable / no burn rate

 

BS 4735 : Char length 4 – 5mm

 

ASTM 1692: 1974 : Resists Ignition

 

BS 476 Pt 6 : Pass

 

BS 476 Pt 7 : Class 1

 

BUILDING : Class “O”

REGULATIONS

(Document B paragraph A12b)

 

UL94 : Pass rating 94 HF1

 

OXYGEN INDEX : > 40%

(BS 2782)

 

CAA8/FAA : Passes to all grades

 

SMOKE MAX : To BS 5111 55%

OBSTRUCTION

 

THERMAL : 0.050 to 0.065 W/mK

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