L.R.B. MATTRESS
L.R.B. Mattress
The LRB Mattress is a high-density, heat-resistant insulation solution made from lightly resin-bonded rock wool. It comes in varying thickness and density options, offering effective temperature resistance up to 750°C.
Range
- Density : 70 to 160 kg/m3
- Thickness : 25 to 100 mm
- Width : 1.22 m
- Length : 1.52 to 5 m
Facings
- GI Wire Mesh
- SS Wire Mesh

Product Performing Criteria
Parameter
|
Values
|
Standards
|
---|---|---|
Thermal Conductivity (W/m.K)
|
0.059 at 200oC mean temperature
|
IS 8183
|
Thermal Resistance (m² K/W)
|
Calculated as per thickness and thermal conductivity of insulation
|
|
General Material Properties
Parameter
|
Values
|
Standards
|
---|---|---|
Non-combustibility
|
Non-combustible / Incombustible
|
BS 476 Part 4, IS 8183
|
Surface Burning Characteristics : Flame Spread Index
|
≤ 25
|
ASTM E84, UL 723
|
Surface Burning Characteristics : Smoke Developed Index
|
≤ 50
|
ASTM E84, UL 723
|
Water Vapour Sorption
|
Less than 5% by volume
|
ASTM C1104, ASTM C1104M
|
Water Absorption (Kg/m2)
|
Less than 0.5
|
BS 2972 Part 11
|
Shot content
|
< 25%
|
IS 3144, IS 8183
|
Sulphur / Chloride
|
Chloride : less than 20 ppm Sulphur content : less than 0.2%
|
IS 3144, IS 8183
|
Mold growth
|
No fungal growth
|
IS 3144, IS 8183
|
Alkalinity
|
7 to 10
|
IS 8183
|

