ALUMINIUM SKIN

All ACPs are manufactured using superior alloys aluminium which during its entire life cycle suits to all the stages of its use and processing. The common alloys used in ACPs are AA1100 and AA3003. Any other customer specified alloys apart from the two common alloys can be made on request.

PROPERTIES OF ALUMINUM SKIN

Properties Standard Alloys
Alloy ASTM B209M AA 1xxx AA 3xxx
Temper ASTM B209M H18/H16 H18/H16
Tensile Strength ASTM E8 Rm 140 N/mm² Rm 150 N/mm²
0.2% Proof Stress ASTM E8 Rp₀.₂ 110 N/mm² Rp₀.₂ 120 N/mm²
Elongation ASTM E8 A₅₀ 6% A₅₀ 8%
Modulus of Elasticity ASTM E8 70,000 N/mm² 70,000 N/mm²

COATING ON ACP

All ACP sheets of exterior grade are coated with PVDF (Polyvinylidene difluoride) with Kynar 500 (min 70%) or equivalent branded coatings. These coatings are time tested and proven for their excellent weather resistance, resistance to UV radiation, pollution, natural acid rain, smoke and dust. The coating is also popular for its highest gloss retention, colour retention, easy washability and maintenance, best chalk resistant and superior life. The interior grade is coated with high durable Polyester (PE) or anodized to enhance their excellent looks and retain all the qualities in the indoor atmosphere.

PROPERTIES OF PVDF COATINGS

Coating Properties Standard Specification
Lacquering Chemical PVDF
Coating thickness ASTM D 7091 ≥30µm
Gloss at 60° angle ASTM D 523 ≥30%
Formability (T – Bend) ASTM D 4145 No Crack T / No Pick off OT
Cross Hatch ASTM D 3359 ≥3A
Hardness – Pencil ASTM D 3363 ≥ 2H
Abrasion Resistance(Falling sand) ASTM D 968 ≥40 Liters/mil
Immersion Test: 5% HCL ASTM D 1308 No Damage
Immersion Test: 5% H2S04 ASTM D 1308 No Damage
Immersion Test: 5% Na0H ASTM D 1308 No Damage
Immersion Test: Detergent AAMA 2605 No Damage

ALUMINIUM PANEL SHEET ACP

All ACP were manufactured with a superior mix of LDPE complies so as to make the panels LEED or GREEN compliant. The superior & unique mix is added with natural UV which stabilizes and helps to attain most uniform surface, high flexural strength and also increase the shelf life of the panels.

ACP (0.5mm skins and PE core) Standard Specification
Panel Thickness ——- 4.0mm
Weight ——- 5.6 Kg/m²
Polyethylene Core Density ASTM D 792 0.97gm/cm³
Peel strength ASTM D 908 ≥10 N/mm
Peel strength ASTM D 1876 ≥150 N/25mm
Tensile Strength ASTM E 8 ≥4.5 Kg/mm²
Yield strength ASTM E 8 4.0 Kg/mm²
Elongation ASTM E 8 ≥5%
Heat transition coefficient (U-value) ASTM C 1363 ≥5.5 W/m²K
Water Absorption ASTM D570 ≤0.02%
Deflection Temp(under 1.8Mpa) ASTM D 648 ≥121℃
Thermal Expansion ASTM D 696 ≤ 0.024 mm/M/℃
Sound Transmission loss(STC) ASTM E 90 ≥ 26 db

ACP FEATURES

Composite panel or aluminium panel sheet is a widely-used term to describe flat panels that consist of a non-aluminium core bonded to two aluminium sheets. Some main features of an ACP are as follows:

WEATHER PROOF

An aluminium composite panel on building is not affected by severe weather conditions such as in the tropical areas, coastal areas with high humidity.

FLEXIBILITY

An ACP’s ability to be curved, cut or drilled for holes makes it easy to make various shapes with the simplest of tools.

FIRE RESISTANCE

The fire does not reach easily the Polyethylene in ACP due to its composite structure between two aluminium skins.

DECORATIVE AND COLORFUL

It is easy to create or choose a building’s look and feel from the varied and distinctive factory finished colors or customized colors with modern finishes.

REDUCING DEAD-LOAD

An ACP is comparatively much lighter in weight and also have a higher strength to weight ratio than the other building materials such as glass, iron, steel etc of same sizes. This makes an ACP provides more safety from catastrophic events like cyclones, earthquakes, etc.

FLAT

One of most unique physical property of ACP is that it is flat, smooth & even surface.

DURANCE & SHOCK RESISTANCE

The plastic characteristic helps the ACP to shock resistance such as windstorm, earthquake avoiding various types of impacts.

INSULATING AND SOUND PROOFING

ACP maximizes the effect of insulation and sound proofing. Polyethylene does not allow heat and sound to penetrate into inside of building due to its plastic core.

NON EROSION AND ENVIRONMENT FRIENDLY

As aluminium is a non-rusting and a stable metal in external conditions, the composite structure provides higher strength and stability in all weather conditions.
An ACP is safe and recyclable. It can replaced for wooden ply in many applications.

MAINTENANCE

An ACP is absolutely low on maintenance and needs only general cleaning methods.