(1) Aluminum alloy on both sides of CEP board.
CEP board adopts 1100 or 3003 series of alloy aluminium, the thickness of coloured aluminium is more than 0.3mm. New technology is developed to make alloy aluminium adhere closely to core material and have high peeling strength.
(2) CEP board core material.
The middle core material of CEP board is modified low molecular weight fire-proof material, which adopts closed-cell foaming technology, so it has the functions of heat preservation, waterproof and sound insulation. When burning, leaving the fire source to extinguish, no droplets will be produced. Fire protection reaches B1 level and smoke non-toxicity test reaches ZA3. Closed-cell foaming principle makes the sheet achieve light weight, high strength, sealing and other properties, can be used in high-rise (wind pressure coefficient up to 9 level, can withstand 14 level typhoons).
(3) Surface Technology of CEP Board (Fluorocarbon Roll Coating Technology)
Fluorocarbon coatings for curtain wall materials are organic coatings based on fluorocarbon resin and colored with metal particles or mica crystals. The content of PVDF (polyvinylidene fluoride) is more than 70%. The chemical structure of fluorocarbon based materials is bound by fluorocarbon chemical bond, which is considered to be the most stable and firm bond up to now. Normally, it has the following excellent performance:
① Weather ability. It is resistant to bad weather and ultraviolet radiation.So it has the ability to maintain color and luster for a long time Self-cleaning ability.
② Corrosion resistance. It has the ability of resisting acid and liquid alkali erosion and not being polluted by air, acid rain invasion, low permeability of oxygen, moisture and corrosive particles, and can withstand the bad environment for a long time without corrosion, thus delaying the service life of CEP Board.
③ Mechanical properties. Excellent impact resistance, abrasion resistance and excellent film flexibility.