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Finishing Services

Sendot Technology provides a variety of finishing services that can be tailored to meet the specifications of your product design.

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Our Parts Finishing Capabilities

Whether it is CNC machined, urethane cast, or 3D printed parts, to gain an accurate appearance of your final product, the prototype must undergo a rigorous post finishing process before it can be truly brought to life.

Sendot Technology provides an integrated parts finishing service to meet diverse needs. With experienced in-house skills and advanced facilities, we work to control color, texture, gloss, and surface finish to match the design intent.

Parts Finishing
Post Finishing

Choose the Right Post Finishing for Your Prototype Parts

Sendot Technology’s in-house prototype processing can provide hand-finishing, sanding, blasting, polishing, painting, and printing. We also offer specialty surface finishing such as laser etching, anodizing, powder coating, metal plating, vacuum metalizing, chromate, chemical finishing, passivation, and heat treatments.

Common Post Processing

Contact us to learn more about how Sendot Technology can help you with the parts finishing processes outlined below.

Sanding and Polishing

Sanding removes machining marks, burrs, machine lines, and adhesive marks. High polishing creates mirror finishes on plastic, metal, acrylic and polycarbonate parts, or improves the optical clarity of clear parts.

Sanded to 600 grit surface finish is about Ra 0.8 μm; sanded to 1000 grit is about Ra 0.4 μm; mirror polished and clear polished surface finish is around Ra 0.1-0.05 μm.

Hand Finishing

From de-flashing to gluing, filling, modifying, adding inserts, pre-fitting, measuring, and assembling, our handcraft specialists focus on every engineering detail and design specification.

These steps often reveal engineering hurdles that are not apparent in CAD design. We help solve them and turn the part into a finished project.

Machined Finish

Machined parts will have marks that follow the path of the cutting tool. This finish is smooth and quick to deliver because it requires minimal extra handwork after machining.

Standard machined roughness is Ra 3.2-1.6 μm; smooth machined finish is Ra 1.6-0.8 μm; super-finished surface roughness is Ra 0.8-0.2 μm.

Blasting

Bead blasting creates a uniform matte finish, removes tool and sanding marks, and can also roughen or clean the surface. Glass beads typically range from #80 to #220 depending on the result required.

Painting

We use Pantone and RAL color systems to match custom colors or paint samples. Matte, flat, semi-gloss, gloss, satin, Mold-Tech-like textures, soft-touch coatings, UV protection and EMI shielding are all available.

Integrated Surface Finish Support

Match appearance, feel and function before you commit to production.

Finishing choices change how a prototype looks, feels, resists wear and communicates quality. We help choose the right route based on cosmetic targets and functional requirements.

Finishing Services Options

Anodizing

Anodizing improves corrosion resistance, surface hardness and wear resistance. Type II is mainly used for decorative uniform finishes with broad dye options, while Type III hard anodizing is geared toward functional wear resistance.

Vacuum Metalizing

Vacuum metalizing is a physical vapor deposition process that deposits a metal layer onto a non-metal substrate. Aluminum is the most common metal used because of cost, reflectivity and process stability.

Metal Plating

Plating adds a thin layer of another metal to protect the base material from corrosion and oxidation or to alter the cosmetic appearance. Tin, nickel, zinc and chrome are common options.

Powder Coating

Powder coating applies a thin protective polymer layer that is strong and wear-resistant. Typical thickness varies from approximately 50 μm up to 150 μm.

Printing & Etching

Silk screening works well for larger surfaces and multiple colors, pad printing fits curved surfaces, and laser etching is ideal for precise and permanent marks on metals and selected plastics.

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