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Why Do Visually Flawless Silicone Parts Develop Internal Voids and Under-Curing? Custom silicone rubber parts can look perfect outside but hide uncured soft cores within. Overlooking internal voids results in catastrophic assembly failures. I share our root cause case review to protect your production line. Silicone products develop internal voids and softness when molding temperatures […]

Pre-Order DFM Checklist for Custom Silicone Molds Are you planning to order a custom silicone mold? Stop. Before you pay for tooling, run this DFM (Design for Manufacturability) checklist. This guide is written for buyers, not just engineers. Let’s make sure your custom silicone molding order is right the first time. 1. Material Selection (LSR […]

When you select a custom silicone products manufacturer, you’re not buying unlimited design freedom—you’re buying expertise in matching your product concept with material physics, mold constraints, and order economics. The manufacturer’s technical review process determines whether your project gets quoted accurately or hits expensive revision loops after you’ve already committed deposits

When silicone products become sticky, the receiving team notices it before anyone opens a drawing: dust clings to the parts, poly bags weld to the surface, and in food-contact or medical programs the batch fails incoming inspection on sight. Silicone products become sticky for five controllable reasons — oil bleeding, an over-softened compound, incomplete curing, […]

A mixing defect is the failure mode where parts of one part number end up inside the carton of another. It surfaced on one of our cable seal programs last month: an assembly line opened a box of 32A1PH seals and found 32A3PH parts mixed through the batch. The two parts differ by a few […]

A silicone mold cost is quoted as a single number, but it is built from five blocks: steel, machining hours, polishing, sampling and engineering. Only two of them scale with part complexity — which is why the cheapest-looking quote is rarely the cheapest project. There are two ways to lower it. The slow way is […]

A silicone mold surface finish is not a cosmetic decision. It is the texture of the steel, and every part produced from that tool will copy it for the life of the program. Specify it after the first samples fail and you pay twice — once to re-polish or re-etch the cavity, and again for […]

Liquid silicone rubber for medical devices is not a material choice — it is a closed process. The compound stays sealed from drum to cavity, the cure is triggered by heat rather than peroxide, and every parameter that affects biocompatibility is either documented or it is not. That closed loop is why medical programs run […]

Companies that make silicone molds are not one category. Some cut steel tooling, some pour RTV rubber molds, some mold finished parts against your drawing — and the search term covers all three. Choosing the wrong type wastes a quotation cycle, and often a tooling deposit. For gaskets, seals, keypads, boots and thick-wall parts, the […]

Silicone hardness Shore A is the one number that decides whether a food mold releases cleanly or tears at the rim on the third demold. It is also the number most buyers copy from a competitor’s data sheet instead of deriving from their own part. This guide gives the ranges that actually work by application, […]