What are the characteristics of organic glass sheet and cast acrylic sheet comparative analysis of source factories
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What are the characteristics of organic glass sheet and cast acrylic sheet - comparative analysis of source factories
Many buyers think that "organic glass board" and "acrylic board" are two different materials, and even consider one "high-end" and the other "ordinary". In fact, the two are essentially the same - both are polymethyl methacrylate (PMMA). The real determinant of the performance and quality differences of the board is the production process - whether it is casting or extrusion.
The casting plate is made of liquid MMA monomer as raw material, which is slowly polymerized and solidified by injecting it into a glass mold; The extruded board is made of PMMA particles as raw material, which are heated and melted before being continuously extruded through a die. These two processes endow the board with completely different characteristics and determine their respective suitable application scenarios. Zhejiang Yifang New Materials, as the source factory, focuses on the production and supply of high-quality cast acrylic sheets. This article will help you clarify the real differences between the two from three dimensions: feature comparison, usage analysis, and common problems.
Characteristics of Cast Acrylic Sheet
The core advantage of casting plates lies in their "slow work, fine work" production method - liquid MMA monomers slowly polymerize in glass molds, allowing molecular chains to grow fully.
Ultra high transparency: The transmittance can reach 92% -98%, and the edges are smooth and transparent without any blemishes. Cast sheet metal has less deformation and is an ideal choice for display windows, aquariums, and precision optical applications.
High molecular weight: With a molecular weight of over 1 million g/mol, it has excellent rigidity, strength, and chemical resistance.
Excellent weather resistance: after adding ultraviolet absorber, it has excellent anti yellowing and anti-aging properties, and its outdoor service life can reach 5 to 10 years.
High surface hardness: Cast acrylic has a harder surface, making it more scratch resistant than extruded acrylic.
Good processing stability: suitable for precision machining such as laser cutting and CNC engraving, with small processing deformation and good dimensional stability.
High color flexibility: particularly suitable for small batch processing, with unparalleled flexibility in color system and surface texture effects.
Characteristics of extruded board
The extruded board adopts a continuous and automated production method, which has high efficiency and low cost.
The light transmittance is about 92%, and there may be pockmarks or yellowing at the edges
Low molecular weight (about 600000 g/mol), slightly weaker mechanical properties
High flexibility: conducive to bending and hot forming processing, with a short softening time, which is beneficial for rapid vacuum forming when processing large-sized sheets
Small thickness tolerance: more precise than cast plates, suitable for large-scale standardized production
Limited color flexibility: Large scale automated production makes it difficult to adjust colors and specifications
The purpose of casting acrylic sheet
Cast plates are suitable for scenarios that require high quality and durability:
Specific Application Fields and Uses
High end advertising signage, outdoor lightboxes, signs, signage, display stands
Architectural decoration showcase, soundproof doors and windows, daylighting cover, wall panel
Display props, jewelry display cabinets, cosmetics display shelves, aquariums
Industrial accessories, instrument panels, equipment covers
Baby incubators and surgical medical equipment in the medical field
Doors and windows of vehicles such as trains and cars in the transportation sector
Cast plates have a higher molecular weight, greater rigidity, and crack resistance, making them more suitable for processing large-sized signs. In addition, the casting process is more suitable for producing small batches of boards of different colors.
The purpose of extruded board
The extruded board has a low molecular weight and high flexibility, making it suitable for vacuum forming
Large scale lightbox panels
Vacuum formed products
Indoor display rack
Hot bending products
Extrusion board can better control the thickness of the board, making it more economical to produce large quantities of monochrome boards.
Q1: Are organic glass sheets and acrylic sheets the same thing?
Yes. The two are essentially the same - both are polymethyl methacrylate (PMMA). Organic glass "is a free translation, while" acrylic "is a transliteration. Just different names, the materials are exactly the same.
Q2: Why are some acrylic sheets prone to deformation while others do not?
The deformation differences mainly come from the production process. The cast plate has a high molecular weight (>1 million g/mol), good rigidity, and is not easily deformed. The extruded board has a lower molecular weight (about 600000 g/mol), slightly weaker mechanical properties, and is more prone to deformation. In addition, extruded plates are more prone to softening during laser cutting or CNC machining due to internal stress.
Q3: Is there a significant difference in light transmittance between cast and extruded boards?
There is a certain difference. The light transmittance of the cast board can reach 92% -98%, and the extruded board is about 92%. Although the numerical difference is not significant, in terms of actual visual effects, the optical purity of the cast board is higher and the edges are more transparent.
Q4: Which is more scratch resistant, cast board or extruded board?
Cast plates are more scratch resistant. Cast acrylic has a harder surface, making it more scratch resistant than extruded acrylic. This is particularly evident during polishing - extruded sheets tend to soften faster due to heat accumulation.
Q5: How much better is the chemical resistance of cast plates than extruded plates?
Cast acrylic resin has superior chemical corrosion resistance and performs better in environments that are prone to contact with solvents or cleaning agents. Extrusion of acrylic resin is more prone to chemical reactions due to its lower molecular weight. The excellent chemical resistance of cast plates is one of the advantages brought by their high molecular weight.
Q6: Why is cast board more expensive than extruded board?
There are three main reasons why the price of cast plates is higher. One is the complexity of the production process - the casting plate uses liquid monomers to slowly polymerize in the mold, resulting in a long production cycle and multiple processes; Extrusion board is produced continuously with high efficiency. The second is the high quality of raw materials - high-purity MMA new materials must be used for casting plates. Thirdly, the performance advantage is obvious - the cast board is superior to the extruded board in terms of transparency, hardness, weather resistance, chemical resistance, and other aspects.
Q7: What are the advantages of Zhejiang Yifang in casting acrylic sheets?
Zhejiang Yifang New Materials, as the source factory, focuses on the production and supply of high-quality cast acrylic sheets. Produced with 100% high-quality PMMA raw materials, the light transmittance remains stable at over 92%. After adding UV absorbers, it will not yellow for 8-10 years outdoors. The full range of thickness covers from 1mm to 50mm, with standard sizes of 1220 × 2440mm and 1220 × 1830mm in stock. It supports customized non-standard sizes and precise matching of any Pantone color code.
| product type | pet、ps、acrylic、acrylic mirror、pvc sheet,acrylic sheet |
| thickness | 0.35-300mm |
| Styles | 1220*2440,1220*1830,500*900,50*60,960*1950,700*900/Customization of various specifications and sizes |
| delivery time | 5-8day |
| manufacture | Yifang |
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