Seal and Moulding Guides Written for Buyers

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Material selection, size standards, moulding processes and sourcing checklists, written from the questions our own customers ask before placing a first order.

How to Choose a Rubber Seal Material in Six Questions

Six questions decide almost every seal material choice. Answer them before you ask for a price, and the quotation you get back will be worth comparing.

The AS568 O-Ring Size Standard and Why It Saves You Tooling

AS568 is the reason some O-ring quotations come back with no tooling charge and a short lead time, and others do not.

FFKM or FKM Which One Your Application Actually Needs

FFKM is not simply a better FKM. It is a different commercial decision, and specifying it by reflex wastes money as reliably as under specifying wastes uptime.

EPDM and NBR Where Each One Belongs and Where It Fails

These two compounds cover an enormous share of industrial sealing between them, and they fail in each other's territory. Getting the boundary right removes most avoidable seal problems.

Compression Transfer and Injection Moulding for Rubber Parts

The moulding process decides tooling cost, cycle time and how much detail a part can carry. Choosing it is a commercial decision as much as a technical one.

Why Rubber to Metal Bonded Parts Go Wrong and How to Buy Them

Bushings, mounts and anti vibration parts fail at the bond far more often than in the rubber. Split sourcing is the reason, and it is fixable at the purchase order stage.

What to Check Before Ordering Silicone Hot Water Bags

A silicone hot water bag is a consumer product with a safety dimension, which makes the sourcing checklist different from an industrial rubber part.

About These Guides

Our own engineering and sales team, from the questions buyers actually ask us. They are not rewritten supplier datasheets.

Yes. We hold twelve compounds and have no incentive to push one of them, which is the only thing that makes the advice worth reading.

Yes. Send it by WhatsApp or email and an engineer will answer within one working day.

Still Not Sure Which Compound

Describe the medium, the temperature and the movement. An engineer will answer, not a sales script.