Complete Post-Molding Solutions for Your Plastic Parts
Sunpeakmold delivers professional secondary processing and surface finishing services that transform injection-molded parts into market-ready products. From heat staking and ultrasonic welding to premium paint finishes and laser marking, we handle every post-molding requirement under one roof — saving you time, cost, and supply chain complexity.
Beyond Injection Molding — Adding Value Through Post-Processing
Secondary processing refers to all the value-added operations performed on injection-molded parts after they leave the mold. While injection molding creates the base plastic component, secondary processing transforms it into a finished product with enhanced functionality, durability, appearance, and market appeal.
At Sunpeakmold, we integrate secondary processing directly into our production workflow. This means your parts move seamlessly from molding to finishing without the delays and quality risks of outsourcing to multiple vendors. The result: faster lead times, lower total cost, and consistent quality from start to finish.
Our Core Post-Molding Capabilities
We offer a comprehensive range of secondary processing methods — from assembly and joining to decorative finishing.
Joining & Assembly
We use advanced thermal and mechanical joining techniques to securely attach metal inserts, fasteners, and components into plastic parts — creating strong, permanent bonds without adhesives.
These processes are faster, cleaner, and more reliable than traditional mechanical fastening or gluing methods.
Heat Staking / Inserting
Thermal forming to permanently fix metal inserts into plastic parts
Heat Inserting
Press-fit metal threaded inserts into pre-molded holes using controlled heat
Ultrasonic Welding
High-frequency vibration to fuse plastic parts with unmatched speed and precision
Riveting & Others
Mechanical fastening, swaging, and custom assembly operations
Decorative & Functional Surface Treatments
Enhance the appearance, feel, and performance of your plastic parts with our professional finishing capabilities.
Electroplating
Silk Screen Printing
Pad Printing
Laser Marking
Logo & Laser Marking
Painting & Spray Coating
Achieve the Perfect Look and Feel
From glossy and transparent to soft-touch and metallic — we deliver the exact surface finish your product demands.
Glossy Finish
Matte Finish
Textured Finish
Transparent Finish
Metallic Paint Effect
Soft-Touch Coating
Color-Matched Finish
Every Part Inspected Before It Ships
We perform multi-point quality inspections to ensure your finished parts meet specifications for appearance, adhesion, fit, and dimensional accuracy.
Adhesion Test
Appearance Inspection
Assembly Fit Check
Color Consistency Check
Dimensional Check
Logo & Position Check
Secondary Processing Across Industries
Our post-processing capabilities support products across automotive, medical, consumer goods, electronics, and more.
Automotive
Consumer Electronics
Houseware
Kitchenware
Medical
Outdoor & Sports
Toys & Recreation
Need Secondary Processing for Your Molded Parts?
Share your part specifications and finish requirements — our engineering team will recommend the optimal post-processing solution.
FAQ
Frequently Asked Questions
Request Secondary Processing Quote
Fill out the form below and our engineering team will respond within 24 hours.