At RiLong, we don’t just mold silicone. We overmold it onto metal inserts — often for customers who have already been burned by delamination, shifting inserts, or invisible rejects. Below are five practical lessons we’ve learned the hard way. If…

In plastic injection molding, the initial tooling cost is always a hot topic. I often hear: “Can we find a cheaper mold?” But after years in this industry, I’ve learned one hard truth: Mold price is what you pay upfront;…

Drawing from years of project experience, We’ve summarized the following cost-reduction strategies from four dimensions: production efficiency, part design, material standardization, and maintenance optimization. We hope these insights prove valuable to industry peers. Strategy 1: Mold Structure & Production Efficiency…

Injection molding brings your product to life—but surface finishing gives it soul. For plastic parts, the real differentiator between “ordinary” and “premium” often lies in the post-molding treatment. The same ABS or PC material can feel like metal, ceramic, or…

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…