Technical

Technical



MAPL Panelexterior protective shield for new buildings and renovation applications consists of a polyethylene core and 2 Aluminium skins each of 0.5 mm/0.25 mm thick.

At MAPL Panelwe are using online laminator and catalytic fusion process. MAPL Panelconsists of coated Aluminium skin. The catalytic fusion process guarantees each panel has high quality of durable coating on the top with minimum thickness of 25 microns.

MAPL Panelwith its standard has excellent robustness against industrial pollution & ability to survive in any extreme weather conditions.

MECHANICAL CHARACTERISTIC

Item Unit TEST RESULTS STANDARDS
Specific Gravity (panel) g/cc 1.38 1.52  
Tensile Strength (panel) Kg/mm2 4.5 6.2 E-8
Yield Strength (panel) Kg/mm2 4.0 5.9 E – 8
Flexural Rigidity (panel) X105 kg.mm2 X105 kg.mm2 14.0 C-393 (20cm span)
Elongation: (panel)Horizontal Elongation at breaking poin % 12% 14% E – 8
Panel Weight % 11% 13% E – 8
Punching shear Resistance
Maximum Load (panel) Kg 1380 1650 D-732
Shear Resistance (panel) Kgl mm2 2.9 2.6  

PANEL BOND INTEGRETY

Item Unit 3 MM 4 MM REMARK
Vertical Pull Kg/cm2 120 120 C- 297
Drum Peel Mm N/mm 150 150 D–1781
Flatwise Shear Kg/mm2 88.5 86.1 C – 273

DENT (IMPACT) TEST BY DU-PONT METHOD

Steel Ball Weight (kg) Height (mm) Dent Depth (mm)
    3 mm 4 mm
0.30 300 0.74 0.56
0.30 500 1.17 0.81
0.50 300 1.18 0.88
0.50 500 1.64 1.36
1.00 300 1.97 1.71
1.00 500 2.60 2.29

PANEL FIRE RESISTANCE CHARACTERISTIC

MAPL Panel is manufactured using two strong sheets of noncombustible aluminium. It can resist against fire after lamination process. Following is the resistant test result of MAPL Panel after fire resistant test.

Steel Ball Weight (kg) Height (mm) Dent Depth (mm)
    3 mm 4 mm
0.30 300 0.74 0.56
0.30 500 1.17 0.81
0.50 300 1.18 0.88
0.50 500 1.64 1.36
1.00 300 1.97 1.71
1.00 500 2.60 2.29

THERMAL INSULATION PROPERTIES (panel)

MAPL Panel is manufactured using two strong sheets of noncombustible aluminium. It can resist against fire after lamination process. Following is the resistant test result of MAPL Panel after fire resistant test.

Panel Thickness Thermal Resistance Thermal Conductivity
4 mm 5.26 (mb°C/kcal) 0.19 (kcal/mh°c)

THERMAL EXPANSION OF PANEL

MAPL Panel is manufactured using two strong sheets of noncombustible aluminium. It can resist against fire after lamination process. Following is the resistant test result of MAPL Panel after fire resistant test.

Panel Thickness Co-efficient of Thermal expansion Standard
4 mm 26X10-4 D –696.

DIMENSIONAL TOLERANCE

Panel Thickness Standard
Width + 2.0mm
Length + 4.0 mm
Thickness + 0.2 mm
Bow Maximum 0.5% of the length and/or width
Squareness Maximum 5.0 mm
Surface Defect No irregularities such asRoughness, buckling and other imperfections with our

specification of visual inspection rules.

Thermal expansion 1.2 mm/ m /50°C

SURFACES PROPERTIES

MAPL Panel is manufactured using two strong sheets of noncombustible aluminium. It can resist against fire after lamination process. Following is the resistant test result of MAPL Panel after fire resistant test.

Dry Film Property Test method Criteria
Colour Retention D2244 – 93 Max 5 units after 4000 hrs (exposed skin)
Gloss Retention Gloss Retention 70% after 4000 hrs. (exposed skin)
Chalking D414 – 89 Max 8 units after 4000 hrs (exposed skin)
Salt Spray D-B117 – 90 NCCA 11 –2 Blisters – 10 (exposed skin)Scribe-83000 hrs.-aluminium, 35?C
Humidity –Thermal D2246-65 No blister (exposed skin) No cracking10 cycles : 24 hrs X 100%RH. 37.8 c: 2 hrs X 18 C: 4 hrs. X 24?C
Humidity D2247-94 No change (exposed skin) 3000 hrs. – aluminium, 35?C
Condensing Humidity (Cleveland) D4585-87 None to very few # 8 blisters (exposed skin)100% RH X 54.4C, 2500 hrs
Pencil hardness D 3363-92a 2 H (exposed skin)
Adhesion D 3359,  
DryWetBoiling Water method 8 No change (exposed skin) No change after 37.8?C, 24 hrs.No change after 100C, 20 min
Impact resistance NCCA 11-5 No picking off after reverse impact cross-hatch test(panel)
Abrasion resistance D 968-93 Resisting -20 liters of falling sand. (panel) 20 liters as the criterion of AAMA 70 liters/ mil as the actual value

COMPARISON CHART BETWEEN MAPL PANEL SOLID ALUMINIUM & STEEL

ITEM MAPL PANELS SOLID ALUMINIUM STEEL
Weight 4 mm : 5.48Kg/m2 3mm:8.0 kg/m2 1.5mm:11.47 kg/m2
Flatness Very Flat Uneven Uneven
Heat Insulation Best Poor Poor
Sound Insulation 25db 15db 5db
Echo Response Low Medium High
Weather Proof Good Good Good
Fire Proof Good Good Good
Paint Consistency Best Inconsistent nconsistent
Paint Microns Even Uneven Uneven
Fabrication Easy Difficult Very Tough
Deliver Quick Slow Slow
Total Cost Economical Medium Cost Expensive
Maintenance Easy Easy Easy
Installation Quick Slow Very Slow
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