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Last modified: August 10, 2017

TESTS / MATERIAL PROPERTIES / COMPARISONS

Compressive Strength ~20 MPa (3,000 PSI)
Impact Resistance > 6 kJ/m2
Tensile Strength > 5.5 MPa
Density (Specific Mass) ~1000 Kg/m3 (+/-<2%)
Moisture Absorption ~26% max. saturation (slow absorption rate)
Moisture Content ~6%
Water Vapor Diffusion

~28 / 35

Specific Heat ~930 J/kgK
Thermal Conductivity

~0.44 W / mK

Modulus of elasticity ~6045 N/mm2
Flexibility
UNI E 12372
~20.1 N/mm2 maximum
12mm x 1220 x 2440 = 10 N/mm2
Surface Alkalinity ~10 Ph
Thermal Expansion Hot/Cold

0,01 mm/mC (from temp +20C to -20C)

Expansion in Water less than < 0.02% from ambient to saturation
Freeze / Thaw - UNI EN 520 100 cycles without notable effects
Frost Resistance no water drops form on surface
Combustibility / Fire Ratings non-combustible / 12mm exceeds 1 hr fire rating
Dimensional tolerance thick 0.2mm / width 2mm / length 3mm / Sq 3mm
Toxicity Pollutants Heavy Metals - UNI EN 12457-2 Below measurable levels of test instruments
Asbestos Analysis Absent - not measurable
Formaldehyde AnalysisAbsent - not measurable
Sound Attenuation (9mm) tested design ASTM E90 = STC 48, 50, 55, & 60
Color Slate Grey and Chalk White
Surface texture smooth one side; uniform machine textured back
Basic Compounds (MgO)+(natural silicates)+(glass fiber)+(wood fiber)

Asbestos & Formaldehyde Analysis:
No Asbestos
fiber was found to be present
Formaldehyde measured <5 ug/g beyond limits of instrument

Toxics / Pollutants / Heavy Metals / Carcinogens
None Measured - UNI EN 12457-2

Environmental Exposure Tests:

PASS 100 freeze/thaw cycles - UNI EN 520

Anchor Pull Out Tests:
One 12mm thickness anchor pull out at ~150kg (330 lbs) by panel failure
Two 12mm thickness anchor pull out at ~250Kg (551 lbs) by anchor failure

 Fire Rating Classifications per International Standards & Tests
(class A1 is the highest rating for building materials)

European Standards UNI EN ISO 1182 (non-combustible) - Euroclass A1
European Standards UNI EN ISO 1716 (heat resistance) - Euroclass A1
European Standards UNI EN ISO 13501-1 (smoke and flame) - Euroclass A1
European Standards UNI EN ISO (flooring material) - Euroclass A1FL

United States & Canada US ASTM E136 - non-combustible
British Standard 476: Part 4 : 1970 - non-combustible

United States and Canada Surface Burning Characteristics
CAN/ULC-S102 and US ASTM E 84
(Flame Spread Classification "FSC" = 0 / Smoke Developed "SD" = 0)
Flame Spread and Smoke Development Rating is Class 1 or Class A


British Standard 476: Part 7 : 1997,
Class 1 for Surface Spread of Flame

ACOUSTICAL ASSEMBLY TEST RESULTS: ASTM E90
9mm  (~3/8") Magnesiacore vs ~15mm (5/8") gypsum board
[~15mm gypsum] + [metal stud & batts] + [~15mm gypsum] = STC 43
magnesiacore only wall [9mm] + [metal stud & batts] + [9mm] = STC 48
[9mm / goo / 9mm] + [wood stud & batts] + [~15mm gypsum] = STC 50
[9mm / goo / 9mm] + [wood stud & batts] + [9mm / goo / 9mm] = STC 55
[9mm / goo / 9mm] + [metal stud & batts] + [9mm] = STC 55
[9mm / goo / 9mm] + [metal stud & batts] + [9mm / goo / 9mm] =
STC 60

Note * STC 50 is typical code requirement for hotels, motels, apartments,
condominiums, monasteries and convents blocking approx 50 dB (loud speech
cannot be understood). STC 60 is typically specified for highly sensitive areas
blocking around 60 dB off sound volumes (loud speech cannot be heard).

ONE HOUR FIRE RATED ASSEMBLY TEST:
Passed tests for one hour fire rated wall assembly
using 12mm (1/2")
Magnesiacore thickness
(After one hour only the joint compound is breaking down)

0-min

55-min

 70-min

80-min

95-min

NOTE: Separate certification of each fire rated assembly is required in most jurisdictions to comply with local building codes. Fire Rated certification is not currently available for most assemblies and countries. Based on past tests conducted fire rated certification is achievable to higher levels than common fire code / rated materials. Please contact us for more information.

ADHESION TESTS:

EXCELLENT ADHESION by Direct Application of Acrylic High Build Multi-Colored Elastomeric Decorative Coating

EXCELLENT ADHESION by Direct Application of Flexible Polymer Based Cementatious Base Coat

Upgrade drywall comparison tests:

 Gypsum Board vs Magnesiacore dry test Magnesiacore vs Drywall

 Gypsum Board vs Magnesiacore wet test

SIDE BY SIDE COMPARISON:

 

SIDE BY SIDE COMPARISON

Magnesiacore
Advantages

Magnesiacore

Calcium Silicate Board

Cement Board

Basic
Compounds
Used

Natural Silicates,
(MgO) (CaCO3)
Magnesium Oxide Calcium Carbonate
Wood fiber
Glass fiber
 

Wood chips
Refined Sand
Cement
Cellulose
Additives
 

Portland Cement
Aggregate
Water
Additives
Chemicals
 

lightweight non-flammable natural materials inert non-contaminating
 

Density

 

980 Kg/m3

1300 Kg/m3

1250 Kg/m3

lighter weight for comparable strength, stronger & more rigid
 

Surface &
Colour

Uniform Smooth & Consistent,

Chalk White,
Slate Grey and
Custom 

varies

Off-Whitish

very rough

Greyish

selection of colors,
smoother surface for receiving paint or left natural
 

Thermal Conductivity
 

0.44 W/mK

0.35 W/mK

 0.22 W/mK

more energy efficient
MgO also has good heat refraction properties
 

Bending Strength

20.1 N/mm2

Dry 29N/mm2 Wet 17N/mm2
 

12 N/mm2

stronger more flexible
 

Modulus of Elasticity
 

6045 N/mm2

6000 N/mm2

5500 N/mm2

more rigid

Stability of Thickness Swelling after 24 hours in Water
 

0.2%
(maximum even after seven days in water)

0.78%

1.8%CemBoard
- Malaysia,
0.7%VirocBrand
- Portugal
 

moisture resistant, lower swelling rate, won't degrade in water over time
 

Dry Shrinkage(heating and cooling when dry)
 

< 0.08%

< 0.09 %

0.17%

greater dimensional stability, less expansion/contraction, resistance to cracking
 

Surface Alkalinity
 

PH ~10

 PH 13

PH between
11-13

relatively lower alkalinity
 

Moisture Content
 

10%

10%

12%

relatively lower moisture content
 

Fire Resistance &
Combustibility

Rated Class 1 through fire resistance tests
Non-combustible

Not Available Not Rated

Not Available
Not Rated

non-combustible, highly fire resistant, tested for fire rating to 1 hour with 12mm boards
 

Sound Attenuation

48 db ave. vol. reduction with 2 9mm (~3/8") board and 90mm batts metal partitions

Not Available No tests

Not Available No tests

dB reduction increases by thickness and/or by adding  layers sandwiched with acoustical goo
 


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