ROCKWOOL FIBERTEX 450 / FIBERTEX R80 
INDUSTRIAL BLANKET AND BOARD 

 

Product Description
Fibertex 450 is a medium density mineral fibre for thermal and acoustical insulation. It consists of long, fine fibres, spun from molten natural rock and formed into resin bonded slab and blanket. 

 

A suitable finish such as metal cladding is recommended to protect the insulation from weather or mechanical damage. 

 

Fibertex 450 is supplied in flexible roll form and semi-rigid slab with good load bearing characteristics for a wide variety of applications, at both high and low temperatures. 

 

Applications
Fibermesh-450 is recommended for thermal insulation of large Pipes, Flanges, Valves, cessels, Boilers, Heat exchangers, Reactors, Precipators for process temperature control, condensation control and personal protection of plant and equipment. It is also ideal for wrapping large curved surface and specially suitable where high temperatures combine with strong vibrations. 

 

Fibermesh-450 is easily installed using welding pins, with the mesh facing outwards and securing with speed clips. The mesh joins may be laced together for extra strength.

 

Nominal Density 
80 kg/m 3 (5 lb/ft 3) 

 

Maximum Service Temperature 
Recommended operating temperature up to 450 C (842 F) Capability of handling intermittent temperature up to 1000 C (1832 F) 

Fusion Temperature 
Fusion temperature or Melting point of rockwool at 1350 C (2462 F) 

 

Thermal Conductivity 
0.034 W/mK at 20 C mean temperature (0.235 BTU in/ft 2h F at 68 F) 

Thermal conductivity of Fibertex-450 varies with the mean temperature as shown in graph according to BS 874-1973. 

Insulation performance requirements may be specified in many different ways such as Thermal conductivity, Thermal resistance, Process temperature, Allowable surface temperature or Heat loss. 

CSR Application Enginers will provide technical services and more details to meet any specification.

 

Factory Applied Facings 
Product is available to order with ranges of factory applied facings such as various grades of aluminium foil, glass cloth, glass matt, polyester laminate. 

 

Fire Performance 
Fibertex-450 acheives four zero Early Fire Hazard Indices when tested in accordance with AS 15.30:Part 3-1976 (same as BS 476 : Part 5, 6, 7-1967) for non-combustible material. 

 

Moisture Resistance 
Exposure to an atmosphere of 50 C and 95% relative humidity for 96 hours results 

In moisture absorption of less than 0.2% by volume. Should insulation become wet, full thermal efficiency will be restored on drying out. 

Water repellent grade according to BS 2792 section 12 is available to order. 

Corrosion Resistance 
Fibertex-450 is faintly alkaline and is incapable of corroding steel, copper, or aluminium. To maintain this condition, protection must be provided against contamination from external sources. When tested in accordance with BS 3958: Part 5-1969, results in range of pH 7.5-8.0. Fibertex-450 contains less than 15ppm soluble chlorides. For critical applications involving austenitic stainless steel, a low chloride formulation is available to order. 

Compression Resistance 
Fibertex-450 is a resilient insulation material which readily recovers to original shape after removal of compressive load. 

The graph shows the reduction in thickness (%) under compressive load (kPa), measured in accordance with BS 2972-1975.