Sandwich panels are any structure consisting of three layers: a low-density core (PIR, mineral wool, XPS), and a thin skin layer bonded on each side. Sandwich panels are used in applications that require a combination of high structural stiffness and low weight.

 

1、Discoloration and decoloration of aluminum composite panel.

　　The discoloration and decoloration of aluminum composite panels are mainly caused by the improper selection of panels. Aluminum composite panels are divided into indoor panels and outdoor panels, and the surface coating of the two kinds of panels is different, which determines the different occasions for their application. The surface of the panels used indoors is generally sprayed with resin coating, which cannot adapt to the harsh natural environment outdoors, and if used outdoors, it will naturally accelerate the aging process and cause the phenomenon of discoloration and decolorization. Outdoor aluminum composite panel surface coating is generally used to resist aging, UV resistance of fluorocarbon resin coating, the price of this plate is expensive. Some construction units cheat the owner, with the indoor plate posing as anti-aging, corrosion-resistant high-quality fluorocarbon plate, to squeeze unreasonable profits, thus causing serious discoloration and decolorization of the aluminum plate used in the project.

　　2、Aluminum plastic plate open glue, shedding.

　　Aluminum plastic plate open glue, shedding, mainly due to improper selection of adhesives. As the ideal adhesive for outdoor aluminum composite panel project, silicone adhesive has unique and superior conditions. Previously, China's silicone adhesive mainly depends on imports, the price of many people deterred, only those high-rise buildings on the expensive curtain wall project to dare to ask for. Now, China's Zhengzhou, Guangdong, Hangzhou and other places have put into production different brands of silicone rubber, resulting in a big drop in prices. Now, in the purchase of aluminum composite panels, the salesman will recommend the kind of special fast-drying adhesive. This kind of glue can be used indoors, in the climate change of the outdoor, it will appear plate open glue, deglue phenomenon.

　　3, the deformation of the surface of aluminum composite panel, drum.

　　The reasons for the deformation and drumming of the surface of aluminum composite panel are many. Previously in the construction, this kind of quality problems, we had thought that the quality of the plate itself; later, after we focus on the analysis only to find that the main problem in the paste aluminum composite plate on the grass-roots plate, followed by the quality of the aluminum composite plate itself. Dealers often provide us with the construction process of aluminum composite panel, the recommended base material is mainly high density board, woodworking board and so on. In fact, this kind of material in outdoor use, its service life is very fragile, after the wind, sun, rain, will certainly produce deformation. Since the grass-roots materials are deformed, then as the surface layer of aluminum composite panel that there is no reason to deformation? It can be seen that the ideal outdoor base material should be after rust-proof treatment angle steel, square steel pipe knotted into the skeleton is better. If conditions allow, the use of aluminum profiles as a skeleton is more ideal.

　　This kind of metal materials made of skeleton, its cost is not much higher than the wood keel, high density board, can really ensure the quality of the project.

　　4、Aluminum plastic plate glue seam neatly.

　　Aluminum composite panels in the decoration of the surface of the building, there is generally a gap of a certain width between the panels. For the sake of aesthetic needs, generally have to be filled in the gap with black sealant. In order to save time, some constructors do not use paper tape to ensure the neatness and rules of gluing, but use the protective film on the surface of aluminum composite panel as a substitute. As the aluminum composite panel is cut, the protective film will produce different degrees of tearing situation, so use it as a substitute for the protective tape, it is impossible to clean up the glue seam neatly and tidily.

 

l You may also want to know about aluminum composite materials

Coating	PE / PVDF/ FEVE/ NANO
Core	LDPE/Fireproof
Length	Customized
Color	Solid / Metallic / Marble / Wooden / Brush / Glossy/ Mirror, custom
MOQ	600 SQM each size per color
Brand / OEM	DERACP or Customized
Delivery	15 day after deposit received and color confirmed
Payment Terms	T/T / L/C / Western Union / Paypal
Packing	Wooden Package or bulk loading

 

 

l About DERACP

DERACP found in 2000 ,we are specialized in manufacturing building materials, such as Aluminum Corrugated Composite Panel (ACCP) , Aluminum Composite Panel (ACP) ,Color coated Aluminum Coil etc.The factory located in Wenzhou, Zhejiang Province, China, all transportation options are convenience to the factory.It's easy to get to the airport and port. Our factory covers an area of 15,000 square meters , the warehouse covers an area of 5000 square meters and has six production lines. We have the best aluminum leather suppliers and adhesive suppliers .

 

We currently have over 300 employees including 8 engineers, all of them are participate in the composite materials development more than 10 years . Our factory is ISO9001:2008 certified in quality management systems, ISO14001 :2004 certified in environmental management systems and SAS 18001 certified for Occupational Health and Safety and BSCI(Business Social Compliance Initiative) certified. Our products also have passed SGS, CE(attestation of European Union), and CTC(China Building Material Certification).

 

 

 

If you have any questions, contact me, please.

Contact: Kerry zhu 

Whatsapp & WeChat : +86 130 4067 0248

Email :  kerry@der-acp.com

You'll get my response within 24 hours.