PMMA's strength and toughness makes it great for functional parts and high-quality prototypes, while being relatively affordable.
PMMA powder (also known as polymethyl methacrylate or acrylic) is bound together using a liquid binder, which hardens after a few seconds. After printing, the parts are hardened in a heat chamber, where the powder is fused together and sandblasted to reduce surface porosity. The resulting part offers a light coarse texture, high level of stiffness, and a low density of 1 g/m^3. Due to the high reusability of the remaining powder, parts can be manufactured more cost-efficiently.
|Tensile Strength||10 - 20 MPa|
|Tensile Modulus||1000 MPa|
|Tensile Elongation||1.5 - 3%|
|Flexural Strength||15 - 25 MPa|
|HDT (1.8 MPa)||56°C|
Please note that these values are approximate ranges and can vary depending on specific formulations, manufacturing processes, and testing conditions. It's always recommended to refer to the manufacturer's documentation or data sheets for precise and up-to-date technical specifications for the specific brand and formulation of PMMA powder material.