A subcategory of vat polymerization, SLA 3D printing process uses a laser to solidify, or cure, each thin layer of liquid resin deposited onto the build platform at the top of the resin tank. During this process, the laser traces or draws the design of the part in each layer.
The average layer height is around 100 microns, with a minimum of 25 microns. Famous for accuracy and precision, SLA 3D printing also offers strong adhesion between layers, resulting in good structural integrity for parts.
Since its inception and consequent patenting in 1984, SLA 3D printing still reigns very close to the top of the additive manufacturing hierarchy—superseded only by selective laser sintering (SLS)—another one of the primary forms of 3D printing created in the 80s, and formidable due to greater design freedom in creating complex geometries, and tough parts.
Originally intended for engineers and designers to enjoy as a tool for rapid prototyping, SLA 3D printing still serves its original purpose with ongoing appeal and momentum, due to the following benefits:
Somos GP Plus 14122 is an opaque white, durable resin designed for SLA 3D printing. It closely mimics production plastics like ABS and PBT, offering excellent dimensional accuracy, good stiffness, and a smooth surface finish. With its low viscosity and fast processing capabilities, this material is ideal for a broad range of general-purpose applications, including functional parts and high-quality visual prototypes.
Somos WaterShed Black is a durable black photopolymer resin for SLA. This material offers excellent strength, durability, smooth surface finish, and consistent dimensional accuracy. It is ideal for high-quality functional prototypes and parts that require true black color and superior environmental resistance.
Somos WaterShed XC 11122 is a clear photopolymer resin for SLA. This material offers excellent strength, durability, exceptional clarity, and consistent dimensional accuracy. It is ideal for high-quality functional prototypes and parts that require superior moisture resistance and a transparent, thermoplastic-like appearance.
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