Distinguishing the authenticity of black cast acrylic board teach you a few tricks to easily identify
$1.15 available: In StockQuick Overview: Zhejiang Yifang New Materials, with 20 years of production and processing, international standards, and a daily output of 70 tons.
Distinguishing the authenticity of black cast acrylic board - teach you a few tricks to easily identify
Black cast acrylic sheets are becoming increasingly popular in the market, but the problem that comes with it is that some manufacturers quote tens of yuan per square meter for the same labeled "black cast sheet", while others charge two or three hundred yuan. Behind the price differences are often the real differences in raw material grades, production processes, and quality. What is even more headache inducing for buyers is that black is opaque, unlike transparent boards that can be visually judged by transparency, which increases the difficulty of identification.
In fact, it is not as difficult to distinguish the quality of black cast acrylic sheets as imagined. By mastering the correct methods and comprehensively judging from multiple dimensions such as surface, edge, odor, and thickness, it is easy to identify "real casting" and "fake casting", "new materials" and "recycled materials". This article will provide you with a complete set of quality identification guidelines for black casting boards from four aspects: thickness specifications, characteristics, dimensions, and identification methods.
The thickness specifications of black cast acrylic sheet cover a wide range:
Complete thickness range: from 1.5mm to 50mm or even thicker. The standard thickness includes 1.5 mm、2mm、3mm、4mm、5mm、6mm、8mm、10mm、12mm、15mm、20mm、25mm、30mm、40mm、50mm Wait.
Method for identifying whether the thickness meets the standard:
Multi point measurement with caliper: Measure the thickness at the four corners and middle of the board separately. The thickness tolerance of high-quality cast plates is stable at around ± 0.2mm; The thickness of the return plate is unstable, with a maximum difference of up to 0.5mm.
Check thickness uniformity: If significant differences in thickness are found at different positions of the board, it indicates that there are problems with the production process or raw materials.
Comparing the nominal value with the measured value: If the merchant claims 5mm but the measured value is less than 4.5mm, it is a typical "thickness shrinkage".
Understanding the true characteristics of black cast plates is the basis for distinguishing authenticity:
1. Pure color, full body coloring
The high-quality black casting board adopts a whole body coloring process, and the color is completely consistent from the inside out. Even after deep carving, the exposed parts still maintain the same pure black color as the surface.
2. High molecular weight and good hardness
Cast plates have a very high molecular weight, making them harder and crack resistant. The impact strength is 6 to 8 times that of ordinary glass.
3. Excellent weather resistance
After adding UV absorbers, the outdoor service life can reach 8 to 10 years.
4. No sand holes on the surface
The surface of the casting board is smooth and does not have the common sand holes (small hole shaped pits) found in extruded boards.
The size specifications of black cast acrylic board are also complete:
Standard size: The most commonly used is 1220 × 2440mm (4 feet × 8 feet). In addition, there are specifications such as 1220 × 1830mm, 2050 × 3050mm, and 1000 × 2000mm.
Customized Size: Supports customization of any size as needed.
Q1: How to quickly distinguish between black cast board and black extruded board?
Here are the four most practical methods of identification:
Method 1: Look at the surface - observe the sand holes
Place the board in a well lit area and carefully observe the surface. The surface of the extruded board may have some sand holes, which are like small holes that are concave. The black board will look very obvious; And this situation will not occur with the casting plate.
Method 2: Look at the edges - observe smoothness
The edges of the casting board are smooth and transparent, without any blemishes, and the edges are very transparent. Generally, the edges of the casting board are covered with adhesive film. The edges of the extruded board may have pockmarks or even turn yellow and black.
Method 3: Smell - Cut Test
Take a small piece of scrap material for cutting or heating. When cutting new cast plates, there is less odor and smoke; When cutting boards containing recycled materials, there is a strong odor and a lot of smoke. If two boards are softened by fire and brought close together, it is easy to separate them, indicating good quality. If it is difficult to separate, it may indicate poor quality.
Method 4: Check thickness - caliper measurement
Measure multiple points at the corners and center of the board using a caliper. The thickness tolerance of the pure new material casting plate is stable at around 0.1mm to 0.2mm; The thickness of the return plate is unstable, with a difference of up to 0.5mm.
Q2: Is the appearance of water marks on the surface of the black casting board a quality issue?
During the production process, water streaks may appear on the casting board, which is one of the characteristics of the casting process. Slight water marks do not affect performance, but if they are severe, they may affect the appearance. When purchasing, you can request samples from the manufacturer to confirm whether the appearance meets the requirements.
Q3: How to determine whether the black casting board is made of brand new material or recycled material?
Due to the opacity of black, it is not possible to directly determine the transparency, but a comprehensive judgment can be made through the following methods:
Look at the edge color: The edges of the newly cast board are smooth and transparent; The edges of the recycled sheet may turn yellow and black
Smell cutting odor: Cutting with brand new material without any peculiar smell; Recycled material cutting has a pungent odor
Check thickness uniformity: The thickness tolerance of the new material is small (± 0.2mm); Uneven thickness of recycled materials
Check the packaging: The brand new sheet has a protective film with soft rubber edge packaging at the factory
Choose qualified manufacturers: Priority should be given to manufacturers that have passed ISO9001 certification and can provide raw material testing reports
Why is there such a big price difference for black cast acrylic sheets?
The price difference mainly comes from three aspects:
Raw material grade: The price difference between 100% brand new materials and boards containing recycled materials can reach several times. Brand new outdoor materials will not fade for 8-10 years; The return sheet will turn yellow within six months.
Production process: The production cycle of casting board is long, the process is complex, and the price is higher than that of extrusion board.
Procurement channel: Direct sales from the source factory are more than 30% cheaper than the price of layer by layer distribution.
If the merchant's quotation is significantly lower than the market price (such as black casting board below 60 yuan/㎡), it is necessary to verify the quality through physical verification.
Q5: What is the approximate price of black cast acrylic board?
Black, as a regular color, is about 30 yuan/square meter more expensive than transparent panels, with an average price of around 80 yuan per square meter. 2mm black cast board costs approximately 60-90 yuan per square meter. Special colors such as gold and silver are priced 50% -100% higher. As the source factory, Zhejiang Yifang can offer a price that is over 30% lower than the market for the same quality.
Q6: How to ensure the quality of Zhejiang Yifang black cast acrylic board?
Zhejiang Yifang New Materials, as the source factory, has the following guarantees in terms of the quality of black casting boards:
100% brand new material production: using imported high-quality PMMA brand new raw materials, without adding recycled materials.
Strict quality control system: certified by ISO9001 quality management system and ISO14001 environmental management system.
Complete specifications: The entire series covers thicknesses from 1mm to 50mm, with standard sizes of 1220 × 2440mm and 1220 × 1830mm in stock.
Direct supply from the source factory: 50000 square meters production plant, annual output of 22500 tons, with a price that can be more than 30% lower than the market for the same quality.
| 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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