LRB MATTRESSES

Rock wool lightly resin bonded mattresses (LRB) consists of fine fibers spun from selected rocks melted at high temperature and bonded with a thermosetting resin. They are Machine laid fiber lay pattern and are baked to form mattresses of predetermined density and thickness.

Mattresses are then slit and stitched to specified dimensions . It has controlled thickness and density resulting in predictable heat losses.

Our mattresses manufactured from selected rocks to State of the Art Specification fully conform to national and international standards such as IS : 8183 – 1993 BS : 3958 Part – 3 ASTM:C592 – 80  

APPLICATION
LRB mattresses are used for Hot & Cold insulation to conserve energy It is used in the thermal insulation of large vessels, boilers, , equipment, ducts, flanges, valves and plants operating at high temperatures.

SERVICE TEMPERATURE-50 to + 750 DEGREE CENTI GRADE  
AVAILABILITY Standard Dimensions  1.640 X 1.220 M 
Thickness – MM  25,40,50,60,65,75,100 
Density (Kg/M3)  100, 120, 128, 144, 150 
Wire Netting  1/2″X22G, 3/4″X24G, 1″X20G 
Specification  As per IS:8183 
Test Method  As per IS:3144 
Max Service Temperature  750°c  
THERMAL CODUCTIVITY Mattress has extremely low K values for wide range of temperature. Typical thermal conductivity values for various densities and mean temperature are shown in the graph.Thermal Conductivity Graph  
FACING Avikem LRB Mattresses are available with wired mesh on one or both sides in SS or GI.  
MOISTURE Non-hygroscopic, non-capillary and does not absorb any moisture from the air. Moisture has no effect on the stability of the mattresses.  
FIRE RESISTANCENon-combustible when tested in accordance with BS – 476 part – 4 and ASTM E – 136. Class1 when tested in accordance with BS – 476 part 7, (ASTM E- 84).  
PACKING LRB MATTS mattresses are packed in HDPE bags.  
COROSSION RESISTANCEMattresses do not cause, initiate or promote any kind of corrosion  
FLEXIBILITYMattresses are very flexible. They will essentially retain thickness while conforming to any irregular shape. Retention of fibers by wire mesh prevents cracking or breaking of mattresses.  
BENEFITS OF SHREEROCK BulletIncombustible BulletGood acoustic propertiesBulletMoisture resistantBullet Fire retardant BulletNeither cause nor acelerate corrosion BulletChemically inert BulletDurable and do not sag and settle Easy to handle and apply Better Insulation properties