Incombustibility Adiabatic Board
RockCell Board

Energy saving activities is propelled vigorously in order to protect the global environment.

To save energy and resource is also important issue in construction field. There are great hopes to adiabatic efficacy. RCB (RockCell Board) bring high adiabatic efficiency to fruition by own performance quality and the construction method.

What is RCB?
RCB (RockCell Board) is a forming board which is Calcium Carbonate in major proportions, and it is proprietary products by FUJI KASEI KOGYO KAISHA, LTD. (patented here and abroad)

CLOSED-SELL which forms for RCB gives excellent incombustibility and adiathermancy. Moreover it is also important to remember that RCB does not have any harmful substances which have an effect on public health and global environment.

RCB is as low-density form which has closed-cell. The cells connote air, and depress thermal conductivity. This characteristic drives excellent adiabatic efficiency.

RCB is hardly deteriorated and high durability, and keep the quality on condition of harsh weather. Japanese minister of land, infrastructure and transportation approved.

RCB is hard to burn because the primary component is Calcium carbonate as inorganic substance. Even if set fire to RCB, it just carbonize and hard to burn.

Efficiency to undertake construction, highly workability.
RCB is really lightness in weight on account of form. Moreover it has highly workability to possible to cut by knife, saw and so on. Under the condition of 70 degree, you can process RCB to clinch, curved, circle, not flat shapes and so on.

Adhesive property.
RCB is match and easily adhere with concrete, mortar, plaster, etc….

Intended use.
- As an outside/inside insulation for buildings.
- As a composition panel with other materials( ex. Metal, PC, GRC, etc…)
- As a core material for sandwich structures.
- As a heat insulation for freezer and refrigerator.
- As a heat insulation for tanks of LPG, LNG and Crude oil.

Outside insulation use.
Direct finishing to building frame.No need to prepare priming coat !

Just apply adhesives, you can ray tiles directly to RCB. RCB become in the place of base materials and priming coat, it gives excellent adhesion strength. And you can also work out cement plastering without any priming coat. It can save labor and cost. Moreover RCB can be used for curve surface, it makes increase the freedom of design since

Physical properties
Items Unit RCB Measurement method
Density Kg/m3 70-90 JISA-9511
Compressive strength N/mm2 0.17 (1.8kgf/cm2) JISA-9511
Flexural strength N/mm2 0.51 (5.0kgf/cm2) JISA-9511
Young’s modulus in flexure N/mm2 23.3 (230kgf/cm2) JISA-9511
Tensile strength N/mm2 0.58 (6kgf/cm2) JISK-6767
Heat conducting W/m・k 0.04 JISA-1412
Water absorption g/100cm2 2.0 Max. JISA-9511
Water vapor permeability m2・s・Pa/ 0.0316 JISZ-0208
Linear expansion ratio cm/cm℃ 5.0 x 10-5 ASTM-D-696

Performance evaluation test
Items Unit RCB Polystyrene form Bead form Polystyrene form Extrusion method Hard urethane form Polyethylene form
Density Kg/m3 70-90 20-30 Min. 20 25-45 40-110
Compressive strength N/mm2 0.17 0.10-0.20 0.10-0.29 0.08-0.29 0.03-0.07
Flexural strength N/mm2 0.51 0.20-0.25 0.20-0.34 0.15-0.34 -
Tensile strength N/mm2 0.58 0.44-0.69 0.49-0.64 0.49-0.79 0.23
Heat conducting W/m・k 0.04 0.034 -0.040 0.028 -0.034 0.023 -0.025 0.038 -0.052
Water absorption g/100cm2 2.0 Max. Max. 1.0 Max. 1.0 Max. 3.0 Max. 0.01
Water vapor permeability m2・s・Pa/ 0.0316 0.00342 -0.00685 0.00685 0.00444 -0.00690 0.1
Combustibility - hard to burn burn burn burn burn

Accelerative weather proofing test of RCB
Time(hr) Compressive strength (N/mm2) Tensile strength (N/mm2) Density (kg/m3)
0 0.227 0.711 87
250 0.217 0.691 89
500 0.216 0.687 85
750 0.221 0.728 90
1000 0.196 0.702 85
1250 0.223 0.695 89
1500 0.220 0.688 87

Heating dimensional change of RCB(rate of change %)
Heating Time(hr)
Temperature 0.5 1 3 6 12 24 36
60℃ -0.03 -0.15 -0.18 -0.23 -0.26 -0.31 -0.29
70℃ -0.05 -0.15 -0.33 -0.53 -0.62 -0.87 -0.93
80℃ -0.05 -0.15 -0.73 -0.91 -0.98 -1.22 -1.28
100℃ -0.07 -0.20 -0.84 -0.98 -1.05 -1.58 -1.72
120℃ -1.51 -2.42 -3.51 -4.05 -4.15 -4.55 -4.68
Ex1) Sample size(mm)10×400×400  The number of samples N=2、Point of measurement 2

Sizing chart
Width 910mm 1000mm
Length 1,820mm 2,000mm
Thickness 5~50mm 25~50mm
We can arrange the thickness At the interval of 5mm(T) 5mm(T)
(Please ask us if you need less than 25mm)

All information given and recommendations made herein are based upon our research and are believed to be accurate, but no guarantee, either expressed or implied, is made with respect thereto or with respects to infringement of any patent. Our products are sold on the understanding that user is solely responsible for determining their suitability for any purpose. This information is not be copied, used in evidence, released for publication or public distribution without written permission from Fuji Kasei Kogyo Kaisha, Ltd. (Oct/2006)

Tokyo office
Takara Building 7F, 2-6-2, Higashikannda, Chiyoda-ku, Tokyo, 101-0031
TEL: 81-03-3861-9676 / FAX: 81-03-3862-8387