ACP stands for Aluminium Composite Panel. The standard ACP has LDPE as core material, which is sandwiched between two Aluminium skins.
Adhesive film is generally made out of grafted polymers and such as LLDPE / LDPE resin.
The PVDF paint is formulated with 70% PVDF and the remaining 30% is Acrylic polymer. The entire polymer phase (PVDF + Acrylic) is dispersed in solvents such as esters / ketones. It is critical to use 70% of PVDF to meet the desired weathering performance.
|3.||Coating thickness||25micron min||16micron min|
|4.||Resistance to chemicals||Excellent||Good|
As per the specifications laid down by American Architectural Manufacturers Association (AAMA) for ‘High Performance Organic Coatings on Coil Coated Architectural Aluminium Substrates’ in AAMA 620, the minimum DFT is 23 microns, so as to meet the desired performance parameters. Yes, it will remain nearly same on entire surface of ACP.
Eva Bond offers two types of alloys, namely 1100 alloy with H18 temper and 3003/ 3105 alloy with H16 temper for its ACP's .
If unpigmented recycled material is used, it will be close to the colour of virgin material. However, in most cases the recycled LDPE is pigmented in various colours and the most popular one is black.
Eva Bond uses the right mix of Virgin and Recycled LDPE. Eva Bond can also offer ACP with 100% Virgin LDPE.
The softening point of LDPE is approximately 90 ºC and the melting point is in the range of 110 - 120 ºC.
Regular ACP will not propagate the flame. But due to prolonged heat if the LDPE becomes soft and starts dripping, then the fire will continue as the melted LDPE will burn.