Insights
Silicone extrusion notes
Written for engineers and buyers specifying a seal - what actually decides whether a profile holds, and what to send us to get a quote back the same week.
Industry
Sealing Challenges in Modern Automotive and New Energy Vehicles
Battery packs, charge ports and body-in-white seams all moved the sealing requirement away from "keep water out" toward holding compression, flame rating and electrical isolation at the same time.
How Silicone Foam Gaskets for EV Battery Packs Are Made
From compound selection through extrusion, curing and secondary processing - the steps that decide whether a pack gasket holds its seal for the life of the vehicle.
FDA-Grade Silicone Seals for Medical and Food Processing Equipment
What food-contact compliance actually requires from a seal, and why the certificate has to match the grade you are buying rather than the grade on the brochure.
Silicone Seals for LED Lighting, Electronics and Waterproof Enclosures
Ingress rating, compression over a long service life, and a surface finish good enough for a part the end customer can see.
Food-Contact Silicone Sponge Gaskets for Packaging and Processing
Why sponge profiles are specified in food packaging, what density actually changes, and how to avoid a gasket that compresses flat after a month.
Silicone O-Rings for Food Containers and Airtight Storage
What makes a container lid seal actually airtight, and why the joint is usually the first place it fails. Groove design, hardness and the moulded joint all decide how long a lid stays sealed, and two of the three are easy to get wrong.
Custom Silicone Tubing for Water Treatment and Filtration
Sizing, hardness and material choices for tubing that has to carry water, survive cleaning, and hold its bore over a long service interval.
Process
Secondary Operations on Silicone Sealing Strips
Cutting, mitring, corner bonding, adhesive backing and die-cutting - the operations that turn a continuous extrusion into a part that fits your assembly.
Quality Control in Silicone Extrusion - Where It Breaks and How to Hold It
The four points where extruded seal quality actually drifts, and the checks that catch each one before it reaches your assembly.
Making Silicone O-Rings on an Automatic Bonding Machine
How extruded cord becomes a joined ring, why the joint is the critical feature, and what a good bond looks like under inspection.
How to Select a Silicone Gasket - A Buyer's Checklist
Six questions that determine which profile, hardness and compound you actually need, in the order that matters. Start with the force your closure can deliver, then work through compression set, temperature and chemical exposure before comparing price.
Buyer
The Kinds of Customers We Supply
Who typically buys extruded silicone profiles from us, what they have in common, and how to tell whether we are the right fit for your project.
After-Sales Service and What Happens If a Part Fails
How revisions, reorders and non-conforming parts are handled, and what you should expect a supplier to do when a batch is wrong.
Industries We Supply Silicone Seals To
Automotive, new energy, food processing, medical, lighting and filtration - what changes in the specification for each.
How to Specify a Custom Silicone Extrusion Profile
A custom extruded seal is only as good as the drawing behind it. Section geometry, durometer, tolerance class and the way the two ends close decide whether the first article fits the groove or comes back unusable. This is the checklist we work from when a profile arrives for quotation.
Silicone vs EPDM vs Neoprene - Choosing a Seal Material
EPDM costs less and weathers well. Silicone keeps its shape across a temperature range that hardens or cracks most other elastomers, then gives that back on oil and abrasion. Neoprene sits between the two. The choice is made by which of those failures the assembly can actually tolerate.
How to Read a Silicone Material Datasheet
Durometer, tensile strength, elongation, tear strength and compression set are five numbers that decide whether a seal still seals after two years. This is what each one actually measures, which test method it comes from, and what to ask for when a figure is quoted without its conditions.
Have a specification ready?
Send what you have - a drawing, a sample part, or just the operating temperature and what the seal has to resist. If the geometry is not final, we will tell you which standard profile gets you testing fastest while the custom die is cut.
Talk to the extrusion team