Product Overview
ACRYREX® CM-211 is a polymethyl methacrylate (PMMA) injection molding grade resin produced by ChiMei Corporation. This material belongs to the general-purpose transparent PMMA category, featuring high light transmittance and excellent surface gloss. CM-211 is specifically designed for injection molding processes and is suitable for the manufacturing of industrial components that have specific requirements for optical clarity, weather resistance, and dimensional stability.
Technical Specifications
Physical Properties
| Physical Properties | Typical Value | Unit | Test Standard |
| Density (23℃) | 1.19 | g/cm³ | ISO 1183 |
| Melt Flow Index, Volume (230℃, 3.8 kg) | 17 | cm³/10 min | ISO 1133 |
| Rockwell Hardness M | 84 | — | ASTM D785 |
Mechanical Properties
| Mechanical Properties | Typical Value | Unit | Test Standard |
| Tensile Stress (50 mm/min) | 60 | MPa | ISO 527 |
| Tensile Strain, Break (50 mm/min) | 7 | % | ISO 527 |
| Flexural Modulus (2 mm/min) | 3200 | MPa | ISO 178 |
| Flexural Strength (2 mm/min) | 90 | MPa | ISO 178 |
| Charpy Impact Strength, Notched (-30℃) | 1.6 | kJ/m² | ISO 179 |
Thermal Properties
| Thermal Properties | Typical Value | Unit | Test Standard |
| Vicat Softening Point (50℃/hr) | 103 | ℃ | ISO 306 |
| Heat Deflection Temperature, Unannealed | 76 | ℃ | ISO 75-2 |
| Flammability Rating (1.5 mm) | HB | — | UL 94 |
Disclaimer: The technical data provided above is for reference purposes only and is based on typical values provided by the manufacturer. While we strive to ensure the accuracy of this information, actual product performance may vary based on specific processing conditions and testing methods. Please refer to the official Technical Data Sheet (TDS) and Material Safety Data Sheet (MSDS) provided with your order for precise technical specifications and safety guidance.
Logistics & Supply Standards
This product is packed in standard 25 kg multi-layer paper bags. We maintain ready stock at major logistics hubs to ensure supply chain stability. The average delivery cycle for standard orders depends on Incoterms and the destination, and shipment can usually be arranged after order confirmation. As a non-hazardous chemical, ACRYREX® CM-211 supports mixed transportation with other general-purpose engineering plastic raw materials to optimize customers’ logistics costs and storage efficiency.
Compliance & Quality Commitment
We ensure that all supplied ACRYREX® CM-211 complies with strict international regulatory standards, including the RoHS directive and REACH regulations. Each batch of products is accompanied by complete third-party test reports and quality management documents, including Technical Data Sheets (TDS), Material Safety Data Sheets (MSDS/SDS), and Certificates of Analysis (COA). We have established a comprehensive batch traceability system to ensure full-link quality control from the production source to final delivery.
Sustainability & ESG Statement
As a thermoplastic, ACRYREX® CM-211 theoretically supports physical recycling and reprocessing. In the production and processing stages, this material exhibits low Volatile Organic Compound (VOC) emission characteristics. We are committed to supporting the development of a global green supply chain, ensuring that products meet environmental regulatory requirements throughout their life cycle, and encouraging customers to adopt compliant recycling solutions for production waste and end-of-life products while maintaining performance.
FAQs
Q1: What are the recommended drying process parameters for CM-211 regarding its hygroscopicity?
A1: PMMA material is hygroscopic. To prevent silver streaks or bubbles during molding, it is recommended to perform drying before processing. The recommended process is: drying at 80-90℃ for 2-4 hours to ensure that the moisture content of the raw material is below 0.05%.
Q2: What is the Minimum Order Quantity (MOQ) for ACRYREX® CM-211? Are test samples provided?
A2: The standard commercial packaging unit is 25 kg/bag. For regular commercial procurement, a full pallet or full container standard is usually executed. We understand the technical verification needs during the New Product Introduction (NPI) phase and can provide a limited quantity of samples or test pellets upon customer request. Please consult your sales representative for specific quantities and logistics arrangements.
Q3: Is CM-211 the best choice for thin-walled transparent applications requiring high flowability?
A3: The melt volume-flow rate of CM-211 is 17 cm³/10min, which is suitable for most general-purpose injection molded parts. If your application involves extremely thin wall thicknesses (< 2mm) or extra-long flow distances, you may need to evaluate PMMA grades with a higher melt flow index. It is recommended to combine flow simulation testing with specific mold designs and product wall thicknesses to determine the most suitable material grade.
