Incorporating multi-material designs (e.g., rigid plastic + soft TPE) into products not only enhances grip comfort but also adds functionalities such as waterproofing and shock absorption. However, choosing between Two-Shot Molding and Overmolding is often the first major challenge engineers…

Optimizing Gate Design to Avoid Sink Marks (Dents) in Injection Molding The core principle behind optimizing gate design to prevent sink marks is to ensure that the molten material can effectively pack out the thick-walled areas during the holding pressure…

In the pursuit of manufacturing excellence, every leap in precision begins with uncompromising measurement of the smallest details. We are dedicated to providing global clients with comprehensive precision metrology solutions, ensuring every component—from mold to final product—meets the most stringent…

At Rilong Precision Mold, we understand the value of your tooling assets. Whether you already have a proven mold or are planning a new project, we are committed to being your reliable manufacturing partner. We not only provide custom new…

For international clients, choosing a long-established supplier isn’t about nostalgia—it’s a strategic decision for reliability, reduced risk, and peace of mind. When evaluating a mold maker on the other side of the world, a “30-year history” is more than a…

Building Confidence in Transfer-Ready Mold Manufacturing Yes, we can manufacture molds suitable for Global Production — and more importantly, we design and build them with transfer-readiness and long-term production stability in mind. For customers who plan to transfer molds to…

In overmolding projects for consumer electronics, tool handles, sports equipment, and more, the material selection for handle covers directly determines the product’s feel, durability, and user experience. While many assume “silicone is synonymous with soft touch,” TPE/TPU (thermoplastic elastomers) are increasingly becoming the preferred…

Hollow plastic parts are among the most challenging to manufacture due to internal cavities and a lack of support. They are prone to warpage, uneven shrinkage, sink marks, surface waviness, and dimensional instability—issues that can affect assembly, sealing, and product…

Material Selection: The Cornerstone of Performance and Safety in Medical Devices In the medical device industry, material selection is fundamental to product performance, safety, and ultimate success. As your trusted partner, [RiLong Precision Mold] is committed to providing comprehensive medical…

In the world of plastic injection molding, the mold—also known as a tool or die—is the core of the entire process. It acts as a precision “negative” of the final part, directly determining the product’s shape, dimensions, and quality. This…