Rockwool Slabs
Thickness : 30 mm
Density : 50 kg/m3
Rockwool slabs conforming to ASTM C-612 and equivalent BS-3958 Part 5 are designed for
thermal and acoustic insulation of flat or slightly curved surfaces. These slabs are produced
from long, non-combustible resin bonded fibers. They are easy to cut, fit and handle. The
robust fibers in the slabs combine high levels of thermal efficiency and acoustic absorption.
Applications
Designed for a wide range of applications at both high and low service temperatures. It can be
used on both flat and slightly curved surfaces for thermal and acoustic insulation.
They are also suitable for thermal insulation of ducts, tanks, large vessels, cavity walls, curtain
walls and sandwich panels.
Standard Delivery
Available in standard width of 600 mm and length of 1200 mm.
Other sizes are available upon request.
Service Temperature
Plain Rockwool Insulation has a service temperature of 780°C when tested in accordance with
DIN 52271 for 80mm thickness and 100 kg/m3 density. However there is
possible deviation for lower densities and with facing.
The user is advised that it is possible that the maximum use temperature of facings and
adhesives is lower than the maximum use temperature of the insulation. The user shall ensure
that sufficient thickness shall be installed so none of these accessory items (facings and
adhesives) are exposed to temperatures above their maximum use temperature.
Compatibility
Compatible with all other forms of material with which it is likely to come in contact
in normal industrial and building applications.
Fire Safety
Rockwool Insulation alone is non-combustible when tested in accordance with BS-476: Part 4
1970 and ASTM E-136. Class A, when tested in accordance ASTM E – 84.
Thermal Conductivity
Rockwool products show remarkably low thermal conductivity values with typical
figures in accordance with BS 874, equivalent ASTM C 177/C 518. We have test reports
at 35°C mean temperature for 40kg/m3 and 70kg/m3 densities.
Mean k-Value
Temp W/mK
°C 60 kg/m3
50 0.039
100 0.046
150 0.060
200 0.071
250 0.088
300 0.108
350 0.126
The table shows the test results for their raw density in accordance with the test report.
These results are not binding because they were converted.
Acoustic Properties
Typical sound absorption figures are shown below in accordance with BS 3638 & ISO 354 and
equivalent ASTM C 423. We have test certificate for 60kg/m3 and 100kg/m3 densities.
The table shows the test results for their raw density in accordance with the test report.
These results are not binding because they were converted.
Hz 60 kg/m3
125 0.22
250 0.63
500 0.90
1000 0.98
2000 1.05
4000 0.99
Note that components of the whole system should be considered for the
Sound Absorption requirement.
Moisture
Water repellent, non-hygroscopic, non-capillary, and does not absorb any moisture
from the air nor does moisture have any effect on the stability of the slabs. Water absorption
test certificate conducted under BS 2972:Section 12 and ASTM C-209 are
available upon request.
Chemical Neutrality
Chemically neutral with a pH value of 7-8 when tested in accordance with BS-2972 : Section 22.
It will neither cause nor promote corrosion. It meets the requirements of ASTM C-795 the
standard specification for thermal insulation for use in contact with austenitic stainless steel
as per ASTM C-692 (Corrosion test) and ASTM C-871 (Chemical analysis). It contains low
level of chlorides when tested in accordance with BS 2972 : Section 21,
ASTM C-871 and AGI Q 135.
Biological Properties
Rot-proof, non-hygroscopic, will not sustain vermin and will not
encourage growth of bacteria, mold or fungi.
Physical Properties
Asbestos-free and shot content is very low when tested as per
ASTM C-1335 and BS-2972 Section 14.
Packing
Supplied in shrink wrapped polyethylene
Unit Price
For details on price our sales office can be contacted.
Technical Advice
For further details of information on technical data, specialist product information, applications,
heat loss calculations or economic thickness, our sales office can be approached.
