What is the difference between a cast acrylic sheet and extruded acrylic sheet?
Which type of acrylic sheet should I choose?
Acrylic sheets are divided into two categories according to the production process: cast acrylic sheets and extruded acrylic sheets. No matter what kind of acrylic sheet, the transparency is extremely high, as crystal, more importantly, the color is rich, processability, can be made into a variety of styles and shapes. Therefore very wide range of uses, from home decoration to hotel supplies, to outdoor advertising light boxes, to the construction industry, etc., all play its role.
The first is the difference between the two types of sheet technology.
Cast acrylic sheet: Cast acrylic sheet, melted the acrylic raw materials at high temperature, placed in the mold to pour the production.
Cast acrylic sheet production process: acrylic raw materials → heating polymerization → cooling to room temperature → filling into the template (water bath, oven, heating) → complete polymerization → release → lamination → packaging
Extruded acrylic sheet: extruded acrylic sheet, generally melted the acrylic raw materials, and then extruded through mechanical equipment at high temperature.
Extruded acrylic sheet production process: acrylic raw materials → screw extruder (melting, plasticizing) → die → calendering → lamination → cutting → packaging.
The second is the difference in the performance of the two types of sheets, cast acrylic sheet high molecular weight, with excellent rigidity, strength and excellent chemical resistance.
And then their Prices are different，under the same quality premise, the price of casting board is lower than that of extrusion board
So what are the advantages and disadvantages of cast acrylic sheet and extruded acrylic sheet?
Cast acrylic sheet advantages.
1, Cast acrylic sheet has excellent stiffness. “Stiffness” refers to the ability of the material or structure to resist elastic deformation when subjected to force. Commonly understood that is the ability of the material to resist external forces and maintain the original shape.
2, Cast acrylic sheet excellent chemical resistance.
3, The cast acrylic sheet product specifications are very complete.
4, Cast acrylic sheet has very good transparency.
5, It has unparalleled flexibility in terms of color and surface texture.
But the corresponding cast acrylic sheet also has disadvantages.
1, Because it is cast molding, so the sheet in the thickness of the error is large, such as 20mm thick, the actual may only 18mm thick. Our thickness error is generally about 0.1mm, if you receive the goods, there is indeed a thickness error handing large plates, we are willing to send you a new sheet for free.
2, Some manufacturers need a lot of water for cooling in the process of producing pouring boards, which is easy to produce industrial sewage and cause pollution to the environment. But Eyeshine factory has our own water circulation system, which not only reduces the cost of water, but also produces less sewage
3, The size of the whole sheet is fixed, so it is less flexible to produce other sizes of sheets, which will easily cause waste of sheet edges and increase the unit price of products. Eyeshine provides laser cutting, CNC cutting services, professional designers can better help you reduce losses
Extruded acrylic sheet advantages.
1, Extruded acrylic sheet thickness tolerance is small.
2, Extruded acrylic sheet is suitable for a single variety, mass production.
3, Extruded acrylic sheet produced by the length of the plate adjustable, can produce long width sheet.
4, Extruded acrylic sheet is conducive to bending and thermoforming process, in dealing with the larger size of the plate, conducive to fast plastic vacuum suction molding.
5, acrylic extrusion plate in large quantities can reduce production costs, and production size specifications have great advantages.
Disadvantages of the Extruded acrylic sheet.
1, Extruded acrylic sheet molecular weight is low, mechanical properties are slightly weaker.
2, because the extruded acrylic sheet is a large number of automated production, color inconvenience adjustment, so the product is subject to certain color restrictions. There is a certain problem of color difference.
So how should I choose between these two types of sheet?
They each have their own advantages. cast acrylic sheet is suitable for small batch processing, has incomparable flexibility in terms of color system and surface texture effect, and has complete product specifications for various special applications.
Extruded acrylic sheets are better than cast sheets for bending and heat forming, and are suitable for processing larger sizes and for rapid vacuum blister molding.
At the same time, the thickness tolerance of the extruded sheet is smaller than that of the cast sheet. However, the diversity of product specifications is somewhat limited because extruded sheets are produced in large quantities automatically and colors and specifications are inconvenient to adjust.
If you still don’t know how to choose, you can consult our salesman for free and tell him your idea and demand, we will sincerely serve you!
