Ludox RMS – Reinforce Magnesium Silicate is a unique, noncombustible, superior weatherability, high strength, resistant to mold, mildew, fungus and termite construction board product. It can be use for a number of interior and exterior applications including walls and ceiling linings, soffits, tile backing, fascias, floor underlayments, decorative substrate, exterior walls and cladding purposes, fire rated applications like fire doors among many other.
Ludox RMS is a pioneer in the development of magnesium based boards and it’s composition and raw material is among the best and un-match by any known producer throughout China. Our boards are produce from a matrix of MgO, CaCO2, MgCl, natural silicates and other inorganic substances that is safe to human health, 100% asbestos free and formaldehyde free. When expose to fire, it is non-toxic and odorless and an excellent fire resistant product.
Ludox RMS is tested and approve by leading independent testing organization worldwide to ISO, BS EN, ASTM , CNS and GB standards. It comes in various thickness and standard sheet sizes. The surface comes in a white , smooth finish and the back side in a rough finish ideal for lamination purposes to various decorative substrate like wallpapers, wood venears, high pressure laminates, etc. The surface can be painted, laminated, decorated, rendered or spray coated with stone-liked paint.
Ludox RMS boards are harder than drywall , unaffected by water and does not degrade when wet. It is more flexible, resistant to extremes of temperature, crack free than cement board and calcium silicate boards. Unlike wood and plywoods, our boards are resistant to mildew, mold, fungus and termite attack.
Ludox boards can absorb water but it’s performance and durability is unaffected, thus it can use for indoors and outdoors and in damp locations such as showers, bathrooms, kitchens and other wet area applications. It can be use structurally as in bracing for walls and also semi-structurally, such as under-layment for flooring. It can be use in coastal regions, areas prone to hurricanes, rains, extremes of weather because it can withstand harsh weather conditions.
|Standard||Testing Authority||Test Result|
|BS 476 part 4, BS EN ISO 1182||Warrington Fire Research||Non combustible|
|BS 476 part 7||Warrington Fire Research||Class 1 surface spread of flame|
|BS 476 Part 22||EXOVA Warrington UK||71 minutes fire rating Non-load bearing wall partition using 9mm thickness boards|
|BS 476 part 22||CERAM U.K.||180 mins integrity (single side 12 mm board)|
|BS 476 part 22||CERAM U.K.||120 mins integrity & insulation (steel stud)|
|BS 476 part 22||CERAM U.K.||120 mins integrity & insulation (timber stud)|
|BS 476 Part 22||CERAM U.K.||71 minutes fire rated using 9mm thickness board in a wall partition.|
|BS EN ISO 1716||BRE U.K.||Evolved heat of component parts|
|BS EN ISO 13501-1||BRE U.K.||Non combustible Class ‘A1’|
|ASTM E-84||United States Testing||Surface Burning Test with ‘ZERO’ (‘0’) flame spread & no smoke developed.|
|3mm , 4mm, 6mm||±0.3mm|
|8mm, 9mm, 10mm||±0.6mm|
|12mm, 15mm, 18mm, 20mm||±0.3mm|
|Unsanded Boards||12mm to 50mm||915mm, 1220mm||2150mm, 2440mm, 2750mm|
|Sanded Back Side Boards||3mm to 18mm||1220mm||2440mm, 3000mm|
|Rodent Resistance||Highly Resistant|
|Termite Resistance||No Damage|
|Resistance to Bacteria||Highly Resistant|
|Resistance to Mildew Growth||No Growth|
|Fungal Resistance||No growth as tested to ASTM C-1228 (USA)|
THERMAL CONDUCTIVITY ( K-VALUE ) : 0.139 W / mK ( 0.0982 Kcal/m. hr°C)
Ludox RMS board have “K” value of 0.139 W/mK, hence can contribute to energy savings and can provide comfort to the occupants of the buildings in which the board are used. The lower the (K) value of a material, the better it’s insulatiing efficency.
Tested to BS EN 321 for cyclic test in humid condition, board was expose to three cycles each comprising of:
Test Results : No cracking, dsintegration, crumbling, stripping occurred on Ludox RMS Board and the average thickness swelling was -0.2% , average tensile stength 0.20 N/mm2 (12mm) , 0.97N/mm2 (6mm).
No bloating on reverse side. Non-occurrence of swelling, breakage nor tearing apart of the board.
|Test Properties||Test Standard||Test Result||Unit|
|Moisture content||BS EN 322||9.4||%|
|Swelling in thickness ( After 24 hrs. water immersion )||BS EN 317||0.2||%|
|Water vapour transmission||BS EN ISO 12572||48.1||Grams / m2 . Day|
|Cyclic test in humid condition||BS EN 321||-0.1%||Ave. thickness swelling|
|BS EN 321||0.97 N / mm2||ave. tensile strength|
|Moisture absorption rate||CNS 13778||32||%|
|Movement from dry to saturated state||CNS 13778||0.3||%|
|Length expansion after water absorption||CNS 13778||0.06||%|
|Test Properties||Test Standard||Test Result||Unit|
|Compressive Strength||BS EN 12390-3||8.3||N / mm2|
|Bending Strength||BS EN 310||12.1 ~ 17.1||N / mm2|
|Modulus of Elasticity||BS EN 310||5210 ~ 7845||N / mm2|
|Tensile Strength||BS EN 319||1.97 ~ 2.42||N / mm2|
|Screw Withdrawal strength||BS EN 320||69 ~ 87||N / mm2|
|Impact resistance||BS 5669 : Part 1||23||mm / mm|
|Surface Alkalinity||BS 6829||8.5 – 9.5||pH|
|NIOSH 9002||Asbestos determination test||None detected|
|ISO 14184-1||Formaldehyde extraction test||None detected|
|Sound Reduction Index (Rw) ?|
|Sound Absorbtion (dB)||16.8||29.5||31.9||25.6||23||33.6||40||40.9||40.2||44.8|
|Sound Absorption (dB)||48.5||51.3||52.4||53.7||52.6||43.6||43.2||49.7||55||59.4|
|Test Description||Test standard||Sound Insulation|
|1 layer of 12mm Ludox ® RMS board on both sides with insulation cavity, 70mm metal stud partition||BS EN ISO 717-1||Rw = 48 dB|
|1 layer of 9mm Ludox ® board on both sides with insulation cavity, 70mm metal stud partition||BS EN ISO 717-1||Rw = 45 dB|
|12mm thickness board||BS 476 Part 22||Rw = 48 dB|
|9mm thickness board||BS 476 Part 22||Rw = 45 dB|