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Encapsulated MgO vs. Calcium Silicate Raised Access Floors

While Calcium Silicate raised floor panels have historically served as a dense non-combustible option, Steel-Encapsulated Magnesium Oxide (MgO) raised floor panels represent a superior engineering upgrade—delivering higher impact resistance, lower dead-load weight, superior screw-holding strength, and zero silica dust hazard.

Technical Parameter Steel-Encapsulated MgO Floor Calcium Silicate Raised Floor Specification Advantage
Material Core Density 1,200 – 1,450kg/m3 1,500 – 1,700kg/m3 MgO is 15-20% lighter (reduces floor slab dead load)
Concentrated Load (CISCA) 3,500N – 6,700N 3,000N-5,000 N MgO withstands higher dynamic/point loads
Brittleness & Fracture Risk High toughness, shock-absorbent High brittleness, prone to micro-cracks MgO prevents corner breakage during handling
Screw Holding / Anchorage Exceptional thread-engagement Poor / Requires specialized anchors MgO allows direct mechanical fastening
Occupational Health (OSHA) Zero crystalline silica dust High crystalline silica risk MgO eliminates toxic dust hazards during cutting
Fire Performance Class A1 / Non-combustible Class A1 / Non-combustible Both meet non-combustible standards

 

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