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NEW tapefree
boarding system on wood
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boarding system on metal
NEW tapefree
boarding finish & paint
cut saw drill sand
acoustical panels
polishing cleaning edging
| Last modified: October 24, 2008 TESTS / MATERIAL PROPERTIES / COMPARISONS | Compressive Strength | ~20 MPa (3,000 PSI) | | Impact Resistance | > 6 kJ/m2 | | Tensile Strength | > 5.5 MPa | | Density | ~1000 Kg/m3 | | Moisture Absorption | ~26% maximum saturation (slow absorption rate) | | Moisture Content | ~10% | | Thermal Conductivity | ~0.216 (W/m-K) (like a softwood) | | Modulus of elasticity | ~6045 N/mm2 | | Flexibility | ~20.1 N/mm2 | | Surface Alkalinity | ~10 Ph | | Thermal Expansion Hot/Cold | ~0.08% | | Expansion in Water | less than < 0.03% | | 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 | | Asbestos Analysis | no asbestos | | Formaldehyde Analysis | < 5 ug/g (not used in our process) | | 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 fibre)+(wood fibre) |
Asbestos & Formaldehyde Analysis:
No Asbestos fibre was found to be present
Formaldehyde measured <5 ug/g - none added in processes
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 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" = 10)
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
(Note that after one hour the jointing compound is breaking down) 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: uPgrade drywall comparison tests: Gypsum Board vs Magnesiacore dry test 
     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 fibre
Glass fibre
| 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
| 0.216 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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