Mgo Backer Board2019-04-19T12:37:22+00:00


Rockmax mgo backer board is fireproof and moisture proof underlayment, low water absorption rate and stable dimension.
Board could be use as tile, brick, art stone underlayment, with rough reverse design
Board could be use as EPS,XPS,PIR skin, with precise thickness tolerance design

A1 FireproofWill not release toxic gas when it is burning
Moisture resistantWill not mildew and soften in wet condition
Light weightIt is lighter than other cement board
Chloride freeWill not corrode metal and screw, do not damp wall and floor.
Easy cutCould be cut by utility knife
Can be use in both steel and wood framework
Material Safety meet EN REACH requirement, exclude 191 kind of harmful substance

Fire Resistance

Mold Resistance

Building Safe

Impact Resistance

Heat Resistance

Health Safe

Moisture Resistance

Insect Resistance

Technical Data Sheet

ParameterResultTest Standard
Density>900kg/m3BS EN 12467 -2012
Bending strength6mm> 20MpaBS EN 12467 -2012
Water absorbing by weight/24 hours< 20%BS EN 12467 -2012
Water impermeability  after 24h, water gauge 5 cmLack of leakageBS EN 12467 -2012
Dry Shrinkage
Wet expansion
ASTM C 1186-08
Thermal conductivity<0.22W/(m·K)ASTM C 518-10
Asbestos or formaldehydeNoneEN REACH
Fungus resistantNo GrowthBS EN 12467 -2012
Fire ResistantA1   weight lose<30%EN ISO1182 &1176
Chloride content<0.003%ASTM C 871
Surface burning and smokeClass A  Flame Spread<25
Smoke Develop<25
ASTM E 84-12

Application and Limitation

ApplicationTile backer boardBrick veneer backer board
Aluminum composite board underlaymentDamp proof insulation underlayment
AccessorySelf drilling screwSelf adhesive mesh tape
ScraperMortar or adhesive
Flexible jointing compoundLaser level meter
LimitationCan not use as load bearing systemCan not use hanging underlayment

Loading Capacity



Quantity 1 x Pallet

Loading capacity in 20ft CNT

Bulk Load In 20ft CNT

6mm x 1200 x 2400


125 pieces

1050 pieces

1300 pieces

8mm x 1200 x 2400


98 pieces

780 pieces

1000 pieces

● Other thickness and dimension can be customized