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Mechanical Sealing

Custom Rubber Gaskets, Cut & Molded to Your Spec

Sealing is only as reliable as the gasket behind it. We manufacture flange, full-face, ring, and made-to-drawing gaskets in the compound your application demands, from a single replacement piece to full production volume, with rush production when a shutdown clock is running.

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Custom rubber flange gaskets in various sizes manufactured by United RK Rubber
01Overview

Why Rubber Gaskets From Us

A gasket has one job: hold a seal under pressure, temperature, and chemical attack for the life of the joint. Getting there is a material decision as much as a dimensional one. The compound that survives steam service will embrittle in oil; the one that swells in fuel will weep in a water line. We start every gasket order from the application, match the elastomer, then cut or mold to your exact geometry.

Send a drawing, a CAD file, or the old gasket itself, even if it came off the equipment in pieces. Worn samples are routine input for us: we reverse-engineer the profile and compound, then cut the replacement so your flange seals like it did on day one.

White silicone rubber gaskets for food-grade and high-temperature sealing
  • Cut from sheet or molded to drawing, including non-standard flange drill patterns
  • Compound matched to media, temperature, and pressure, not just to what is in stock
  • Reverse-engineering from a worn or damaged sample when no drawing exists
  • Small replacement batches welcome, with rush production for breakdown deadlines
02Applications

Where Rubber Gaskets Earn Their Keep

01

Pipe Flanges

Full-face and ring gaskets for water, process, and utility lines, cut to standard tables or to your flange's actual bolt pattern.

02

Pumps & Valves

Case gaskets and cover seals that hold up to repeated cycling, media contact, and maintenance reassembly.

03

Heat Exchangers & Boilers

Compounds selected for sustained heat and steam so the joint stays elastic instead of cooking hard.

04

Enclosures & Access Panels

Weatherproof and dust-tight sealing gaskets for electrical housings, control cabinets, and machine guards.

05

Food & Pharmaceutical Equipment

Silicone compounds suited to food contact service, with clean, non-marking finishes for hygienic lines.

06

Legacy & Obsolete Equipment

Replacement gaskets for machinery whose original supplier is long gone, reproduced from samples or fragments.

03Materials & Options

The Right Compound, Not Just Any Rubber

Every material below is stocked and formulated for gaskets. Not sure which fits? Describe the application and our engineers will match it for you.

Nitrile (NBR)

The workhorse for oils, fuels, and grease-laden environments, common on engine and hydraulic joints.

EPDM

Water, steam, weathering, and ozone resistance, the default choice for outdoor and water-service flanges.

Neoprene

A balanced all-rounder handling refrigerants, mild chemicals, and weather in mixed-duty equipment.

Silicone

Wide temperature tolerance and food-contact grades for hygienic and hot-service sealing.

Viton (FKM)

Aggressive chemical and high-heat service where lesser compounds break down, specified per application.

Natural Rubber

Elastic, abrasion-tolerant sealing for mechanical assemblies with large dynamic movement.

Custom Options

  • Cut to drawing from sheet, including intricate profiles
  • Molded gaskets for volumes or geometries cutting cannot hold
  • Non-standard flange patterns matched to your actual component
  • Mixed sizes and compounds combined in one order
  • Sample approval before the production batch runs
04How to Order

From Requirement to Delivered Rubber Gaskets

1

Send Your Details

Share a drawing, CAD file, dimensions, or the part itself. Worn or damaged samples are routine input for our engineers.

2

Compound & Quote

We match the elastomer to your application's demands and quote your exact quantity, small batch or full production.

3

Sample Approval

For new custom parts, you approve a production sample first. What you approve is what ships.

4

Production & Delivery

Manufactured in-house on production presses, then shipped from Manila, Singapore, or Europe to your site.

FAQ

Rubber Gaskets, Answered

Can you make a gasket if I only have the old one?

Yes, and the old one does not need to be intact. We reverse-engineer gaskets from worn, compressed, or torn samples, reproducing the profile and matching a suitable compound. This is everyday work for us on equipment whose drawings have been lost.

Which compound should I choose for my application?

You do not need to decide alone. Tell us what the joint seals against, the operating temperature, and how the flange is loaded, and our engineers will match the elastomer. If you already know your compound, we manufacture to it exactly.

Do you cut gaskets to standard flange drill patterns?

We do, and to non-standard ones. Send the standard table reference and we cut to it, or send the flange itself, a rubbing, or a photo with measurements, and we match the actual bolt pattern rather than assuming the standard.

What is the minimum order for custom gaskets?

Replacement quantities and small batches are welcome, and mixed sizes can usually share one production run. Tell us how many pieces the job actually needs and we will quote that quantity.

I need gaskets for an emergency shutdown. How fast can you produce them?

Rush production exists precisely for breakdown and outage deadlines. Flag the deadline in your quote request and we will confirm what is achievable before you commit, then prioritize the order through manufacturing.

Can I approve a sample before the full batch is made?

For new custom parts we produce a sample for your approval, then run the batch. The gasket you approved is the gasket you receive, which matters when the joint it seals cannot leak.

Ready When You Are

Get Rubber Gaskets Made to Your Spec

Send a drawing, sample, or just a description of what you need. Our engineering team will match the compound and quote your exact quantity, with rush production if the deadline demands it.

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