LRB Mattresses

LRB Mattresses is a lightly bonded stone wool mat stitched on galvanised wire mesh using galvanished wire. The wired mat is suitable for thermal acoustic insulation of industrial application reaching high temperatures, such as industrial pipe work, boiler walls, furnaces and smoke ducts. Stainless steel mesh, stainless steel binding wire and/or aluminium foil facing are available upon request.

Product properties

	Performance							Standard
Thermal Conductivity*	Mean Temp (°C)	50	100	150	200	250	300
	λ[W/mK]	0.037	0.038	0.048	0.055	0.063	0.071	EN 12667/ASTM C177
	λ[W/mK]	0.038	0.042	0.049	0.057	0.064	0.076	IS 8183 / IS 3144
Nominal Density	80 kg/m3
Heat Resistance	No visible deterioration of the fibrous structure							IS 8183 / IS 3144
	No evidence of self heating. No fusion of fibers @400 deg C
Maximum Service	640° C [1184° F]							EN 14706
Temperature	750° C [1382° F]							ASTM C411
Incombustibility	1.82%							IS 8183 / IS 3144
Reaction to Fire	EuroClass A1							EN 13501-1
	Surface burning characteristics; Flame spread = passed.							ASTM E84
	Smoke development = Passed							(UL 723)
pH*	7.98							IS 8183 / IS 3144
Water leachable chloride content*	Chloride content 5.8 mg/Kg.							EN 13468
	Conforms to the stainless steel corrosion specification							ASTM C795
	as per ASTM test methods C 692 and C 871							ASTM C871
Sulphur content*	0.096%							IS 8183 / IS 3144
Water absorption*	Water absorption 0.18Kg/m2							EN 1609
	Water vapour absorption (vapor sorption) 0.016% vol							ASTM C1104/C1104 M
Shot Content*	> 150 μm 6.9 %							ASTM 1335
	> 300 μm 1.54 %
	> 850 μm 0.61 %
	> 250 μm 3.8 %							IS 8183 / IS 3144
	> 500 μm 1.45 %
Note :- *Typical Values