Engineering Answers

Silicone manufacturing,
answered one question at a time

Every page here answers a single question a buyer or design engineer actually asked us — with the numbers from the shop floor, not a rewritten specification sheet.

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Material & Selection Comparison
Silicone vs TPE vs TPU for consumer products

Three materials that can look identical on a shelf and fail differently in a dishwasher, a hot car and a baby’s mouth. The difference is decided long before the price is negotiated.

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Inside

A head-to-head table on heat, stain, food contact, feel, overmoulding and scrap — plus the three questions that settle the route before tooling.

Why TPE parts pass inspection and still come back yellowed in month six, and where TPU beats silicone outright.

8 min read · 5 November 2026

Six clusters, one question map

Every question is grouped by where it comes from in a project. Linked titles are published and open as a full answer; the ones below them are queued. The queue is set by what customers actually ask, so if your question is not on this map, that is worth telling us.

Material & Selection

6 questions

Which elastomer fits the application, and what the hardness or grade actually changes.

Design & DFM

6 questions

The drawing decisions that determine whether the part molds cleanly and at what cost.

Tooling & Cost

6 questions

Where the tooling money goes, and how cavity count changes the unit price.

Prototyping & Validation

6 questions

Getting from a concept or a 3D print to parts you can actually test.

Production & Quality

6 questions

What "consistent" means in practice, and how it is measured lot to lot.

Compliance & Documents

6 questions

Which certificate a given market actually requires, and what the test covers.

How these answers are written

The library exists because most silicone content online answers a different question than the one being asked — a material datasheet where a decision was needed, or a sales page where a tolerance was needed. Four rules keep it useful.

One question per page

The title is the question in the customer's own words. If a page tries to answer five questions, it answers none of them well.

Numbers from production

Gap tolerances, shrinkage rates, cycle counts and inspection resolutions come from our tools and our inspection reports, not from a generic industry summary.

Dated and attributed

Each answer carries a publish and revision date and the engineering team that stands behind it. Processes change; the date tells you which version you read.

Linked to the service page

An answer is not a brochure. Where a deeper process or cost explanation exists, it is linked rather than repeated.

Have a question that is not on the map?

Send it with your drawing or 3D file. If it is a question other buyers will ask too, it usually becomes the next page here.

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