Lightly Bonded Mattresses (LRB)

Lightly Bonded Mattresses (LRB) consist of fine fibres spun from selected rocks melted at a high temperature and bonded with a thermosetting resin. They are then felted in a predetermined fibre lay pattern and are baked to form preformed mattresses of predetermined density & thickness with uniform fibre distribution. Mattressses are then stitched, slit and chopped to specified dimensions.

LRB has excellent stability and has no chicken feathering which pollutes the atmosphere during applicaiton. It has controlled thickness and density resulting in predictable heat losses.

Applications

LRB mattresses are used for both hot and cold insulation to conserve enery, maintain process temperature, provide personal protection, prevent condensation and reduce noise level. LRB mattresses are used for thermal insulation of pipe, tanks, equipments, boilers, electrostatic precipitators, flues and ventilation ducts, ovens, furnaces, kilns and fire insulation of fire doors.

Standard Size and Packing

Maximum Service Temperature

Thermal Conductivity

LRB have extremely low K-values for wide range of temperatures. Typical thermal conductivity values are given in the graph for various densities and mean temperatures.

Compression Resistance

LRB mattresses offer high resistance to compression. LRB mattresses regain their nominal thickness after removal of a normal compressive load.

Moisture Resistance

LRB mattresses are water repellant and do not absorb moisture by capillary action or ambient moisture from the atmosphere. Should blankets become wet, full thermal efficiency will be restored on drying out.

Corrosion Resistance

Will not cause, initiate or promote corrosion.

Flexibility

LRB mattresses are designed for maximum flexibility. They will essentially retain their thickness while conforming to virtually any irregular shape. Retention of fibres by the wire mesh prevents any cracking or breaking.

Fire Resistance

LRB mattresses are incombustible and resist spread of flames.