Polymethyl Methacrylate (PMMA), commonly known as acrylic, is a high-performance polymer recognized for its exceptional optical clarity, excellent weather resistance, and long-term durability. As a lightweight and versatile material, PMMA enables products with superior transparency, strength, and design flexibility. It is widely used in automotive components, construction materials, signage, lighting, displays, and coatings, enabling manufacturers to deliver high-quality and visually refined solutions.
Van Bros works closely with trusted upstream suppliers to deliver high-quality PMMA products through a reliable supply chain. We offer PMMA in various specifications to cater to the diverse needs of our clients.
High-Performance Optical PMMA
- LCD light guide plates–ensuring high optical clarity and uniform light distribution
- LED lighting components –offering superior transparency and heat resistance
- Optical fibre systems-where purity and precision are paramount
- Aerospace glazing–including aircraft cockpit canopies with outstanding impact strength
- Bullet-resistant glass–combining optical clarity with enhanced protection
- Automotive taillamps–delivering lasting brilliance and design versatility
Stand The World with Quality
Good fluidity and easy for injection molding. Suitable for complicated shape and long molding path,such as handicrafts,packaging boxes,home appliances
Balanced fluidity, heat resistance, mechanical strength and light transmittance. Suitable for simple mold, overlayer of co-extrusion sheets&siding, such as magnifier, nameplate, signs, cup container
Low fluidity, good injection molding property, heat resistance and mechanical strength, excellent light. Suitable for lighting, automotive lighting, automotive dashboard, LCD light guide plate
Base on SX-304, improve the fluidity. Suitable for injection molding lightguide plate, lens, reflector, etc.
High impact resistance,good fluidity, high weather resistance. Suitable for car lamps, pens, display panel , injection molding lighting masks, etc.
Lower mobility and better extrusion molding performance. Suitable for thin, thick wall extrusion lighting light guide plate,diffusion plate,liquid crystal display light guide plate.
For injection-molded optical and technical items.
Suitable for car lamps, pens, display panel , injection molding lighting masks, etc.
Lower mobility and better injection molding performance.
Chemical Resistance
| Inorganic salt aqueous solution | Sodium chloride |
|---|---|
| Dilute acid | 30% hydrochloric acid |
| Alkali | Sodium hydroxide |
| Low concentration alcohol | 10% methanol |
| Aliphatic hydrocarbons | Ethane |
| Oil class | Gasoline, olive oil |
| Aromatic hydrocarbons | Benzene, toluene, xylene |
|---|---|
| Ketone | Acetone, butanone |
| Halogenated hydrocarbons | Chloroform / Carbon tetrachloride |
| Ether | Ether |
| Ester | Ethyl acetate |
| High acid | 35% hydrochloric acid / 70% sulfuric acid |
Extrusion Conditions
| Grade | SX-304 | SX-306 | SX-8S |
|---|---|---|---|
| Screw L/D | 25-35 | 25-35 | 25-35 |
| Hopper (Cylinder temperature) | 200–230°C | 200–230°C | 210–240°C |
| In the middle (Cylinder temperature) | 220–240°C | 220–240°C | 220–260°C |
| Die position | 220–240°C | 220–240°C | 220–260°C |
| The die temperature | 220–240°C | 220–240°C | 220–240°C / 220–260°C |
Injection Molding Conditions
| Grade | SX-301 | SX-302 | SX-304/SX-306/SX-304H | |
|---|---|---|---|---|
| Dry conditions in advance |
70–80°C
4–6 hr
|
75–85°C
4–6hr
|
80–90°C
4–6hr
|
80–90°C
4–6hr
|
| Cylinder temperature | 170–204°C | 190–240°C | 210–260°C | 210–260°C |
| Mold temperature | 60–85°C | |||
| Injection pressure | 80–140MPa | 80–140MPa | 80–140MPa | 80–140MPa |
Annealing Conditions
| Grade | SX-301 | SX-302 | SX-304 / SX-304H / SX-306 | SX-8S |
|---|---|---|---|---|
| Temperature | 65–70°C | 70–75°C | 85–90°C | 80–90°C |
| Time | 1–3 hr | 1–3 hr | 1–3 hr | 1–3 hr |
Table of Performance Parameters of Each Model
| Items | Test Standards | Unit | Optical Grades | Heat Resistance | High Impact Resistant | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SX-301 | SX-302 | SX-304H | SX-305 | SX-306 | SX-304 | SX-7S | SX-8S | SX-KC1 | SX-KC2 | |||
| Refractive Index | ISO 489 | - | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 | 1.49 |
| Transmittance | ISO 13468-1 | % | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 93 | 90 | 90 |
| Haze | ISO 14782 | % | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | <2 | <2 |
| Linear Thermal Expansion | ISO 11359-2 | 1/°C | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ | 7×10⁻⁵ |
| VST (Vicat Softening) | ISO 306 | °C | 89 | 89 | 100 | 105 | 105 | 107 | 106 | 108 | 99 | 99 |
| HDT (1.82 MPa) | ISO 75-2 | °C | 84 | 84 | 94 | 98 | 98 | 100 | 96 | 98 | 92 | 92 |
| Melt Flow Index (230°C/3.8kg) | ISO 1133 | g/10min | 13 | 9.5 | 2.7 | 1.5 | 1.6 | 2.2 | 6.2 | 3.1 | 4 | 3 |
| Tensile Modulus | ISO 527 | MPa | 3200 | 3200 | 3200 | 3200 | 3300 | 3300 | 3200 | 3300 | 2600 | 2200 |
| Tensile Strength | ISO 527 | MPa | 67 | 70 | 70 | 70 | 74 | 76 | 73 | 77 | 65 | 55 |
| Charpy Impact Strength | ISO 179-1 | KJ/m² | 20 | 20 | 20 | 20 | 25 | 22 | 20 | 20 | 50 | 70 |
| Charpy Impact (Notched) | ISO 179-1 | KJ/m² | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 3 | 4 |
| Density | ISO 1183 | - | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.17 | 1.16 |
| Water Absorption | ISO 62 | % | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.5 |
| Flammability | UL 94 | - | HB | HB | HB | HB | HB | HB | HB | HB | HB | HB |
| Rockwell Hardness | ISO 178 | MPa | 90 | 93 | 93 | 93 | 98 | 101 | 108 | 105 | 93 | 92 |