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Surface finishes of injection molded parts

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Why need
finishes for injection molded parts

For injection-molded products, finishes are crucial to improving both appearance and use. Parts can look better and appeal to end users more visually with surface finishes like painting, texturing, or polishing. Furthermore, depending on the intended use, coatings can offer functional advantages like increased wear resistance, decreased friction, or improved grip.

Specialized needs are met by advanced finishing methods, including ultrasonic welding for assembly or laser engraving for part identification. Furthermore, methods such as painting or electroplating provide opportunity for branding and customisation. With the use of these technologies, injection molded parts are guaranteed to satisfy the exacting requirements of the applications for which they are designed, regardless of how they look, function, or adhere to regulations.

Post Processing for Plastic Injection Molding

LUSHI's post-processing for plastic parts includes surface finishing, painting, and plating, which enhance aesthetics, functionality, and durability, ensuring high-quality, tailored solutions for various applications and industry requirements.

01

Standard Finish

Tooling or mold polishing are common methods used to generate a smooth or matte surface texture for injection molded products. These finishes are excellent for many sectors without the need for extra surface treatment since they offer a clean look and basic functionality for a wide range of applications.

02

SPI A

The SPI grade A indicates a high-quality finish suitable for applications requiring a polished appearance, minimal surface defects, and fine texture. It ensures parts meet aesthetic and functional standards.

03

SPI B

SPI B surface finish standard denotes a medium polish finish with clearly visible tool marks eliminated. It provides a smooth surface ideal for general-purpose uses when minimal roughness and visual appeal are required.

04

SPI C

SPI Class C refers to a surface finish standard for injection molded parts. It involves a medium level of polish, suitable for parts requiring a smooth finish with some visible tooling marks acceptable. This standard is commonly used in consumer goods and industrial applications.

05

MoldTech (Mold Texturing)

Injection molds are given complex patterns or textures using a process known as mold texturing, or mold technology. Through improved surface smoothness, grip, and overall aesthetics, this procedure improves the look and performance of injection molded parts for a variety of applications across industries.

06

VDI (Verein Deutscher Ingenieure)

The VDI (Verein Deutscher Ingenieure) offers rules and standards pertaining to design, manufacturing, and quality assurance for injection molded products. The production of injection-molded components is guaranteed to be consistent, reliable, and compliant with industry best practices thanks to these standards.

07

Laser Engraving

Laser engraving offers precise and permanent marking solutions, ideal for part identification, branding, or aesthetic enhancements. It provides high-resolution designs with minimal material removal, ensuring durability and maintaining part integrity.

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Precision manufacturing for custom plastic injection lolding service

Design for Manufacturing (DFM)

DFM in injection mold manufacturing ensures efficient production, lowers costs, and improves product quality. By improving designs, DFM addresses possible concerns early on, expediting the entire production process.

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Precise Mold Making

Precise mold making ensures high-quality, accurate parts and molding efficiency. Critical factors include meticulous design, advanced CAD tools, robust materials, and skilled craftsmanship, all contributing to consistent, flawless production.

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Rapid Injection Molding

Rapid injection molding serves as a fast-track method for producing prototypes or low-volume items with standard molds. It speeds up product development, lowers costs, and enables for quick iterations in design validation.

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China Injection Molding

The injection molding process involves melting plastic, injecting it into molds, and cooling it. Improving precision and efficiency requires optimized mold design, advanced machinery, precise temperature control, and thorough quality checks.

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Overmolding

Overmolding is the process of molding a material over an already existing part to improve its functionality. The advantages include improved grip, increased durability, and the possibility to blend different materials for optimal performance.

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Insert Molding

Insert molding involves placing pre-formed components into a mold, then injecting plastic around them. Benefits include increased part strength, reduced assembly time, improved product reliability, and enhanced material integration.

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