Journal
Sourcing frameworks, material science and process trade-offs from our engineering team in Dongguan — written for the people who have to specify, certify and buy silicone parts.
Liquid silicone rubber injection molding delivers flash-free, tight-tolerance parts at high volume — but it is not the right process for every project. This guide covers when LSR wins, what tooling really costs, and what to ask a supplier.
Read article →Overmolding puts a soft silicone layer over a rigid substrate to create grips, seals and buttons in one part. This guide explains how the bond actually works, which substrates succeed or fail, the design rules that prevent peeling, and the questions to ask a factory before you commit tooling.
Read article →A practical sourcing framework for choosing a silicone rubber factory in China: real factory vs trading company, the numbers to ask for, tooling ownership, audits, sampling and first-order checklists.
Read article →Compression molding vs LSR injection molding for silicone parts — tooling cost, cycle time, tolerance, part complexity, break-even volume and how to decide for your product.
Read article →The real difference between food-grade and medical-grade silicone, what FDA 21 CFR 177.2600 and LFGB actually test, when you need platinum cure and post-curing, and how to write it into your specification.
Read article →A practical guide to silicone Shore A hardness — what 10A, 30A, 50A, 70A feel like, how hardness affects sealing, tear strength and demolding, and how to specify it with the right tolerance.
Read article →How custom silicone baby teethers are made and certified — material and cure choice, safety standards EN 71 and CPSIA, choke hazard design rules, tooling, decoration and cost drivers.
Read article →Design rules for custom silicone seals and gaskets — compression ratio, groove design, tolerances, compression set, temperature range, and when silicone is the wrong elastomer.
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