Made to Your Specification

Vulcanized & Spliced Rings

Need a ring in a size that doesn't exist in a catalog? We produce custom vulcanized and spliced rings to your exact inside diameter, cross-section, profile, and material — with lead times of one week or less for stocking materials.

1-Week Lead Time Any ID & Cross-Section ISO 9001:2015 Certified

Create a Ring →

Spec Your Ring

Enter your dimensions, profile, and material into our online ring creator — or send us your specs directly and we'll take it from there.

Get a Quote

Standard quotes are returned within one business day. Need help selecting a material or profile? We're happy to assist before you submit.

We Build & Ship

All material is relaxed before splicing for dimensional accuracy. Typical lead time is one week or less for stocking materials.

Faster Turnaround

We maintain thousands of feet of pre-relaxed cord in stock across multiple materials — so production starts immediately when your order is placed.

What We Produce

Custom Rings, Any Size

Not every application fits a catalog size. Vulcanized and spliced rings let us produce a ring to virtually any inside diameter and cross-section from extruded cord stock — whether you need a single ring for a repair or a production run for an OEM application.

We work with round, square, rectangular, and 4-lobe (Q-ring) cord profiles. If you need a profile or size that isn't available as a standard molded ring, a spliced ring is often the most practical and cost-effective solution.

All standard durometers are available across our stocked compounds. Specialty materials can be accommodated on request — contact us for availability and lead time.

Turnaround & Lead Time

One week or less for stocking materials. Lead time may vary for higher quantities, larger rings, or specialty compounds — confirmed at time of quote.

Note: very small inside diameters may not be suitable for splicing. We'll advise if an alternative solution is recommended.

Materials

We stock the most common compounds and can source specialty materials on request.

View full material guide →

Heat Spliced

Vulcanized Rings

The standard method for solid elastomeric profiles. Cord ends are cut, joined, and bonded under heat and pressure to form a strong, continuous ring suitable for most sealing applications.

Round Square Rectangular 4-Lobe / Q Tubing

Cold Bonded

Sponge Rings

Sponge profiles require cold bonding — a bonding agent is applied to the cord ends and joined without heat. This preserves the cellular structure that heat would damage, making cold bonding the correct method for sponge compounds.

Neoprene Sponge EPDM Sponge Silicone Sponge

Available Materials

Compounds We Work With

Buna-N (NBR)

EPDM

FKM / Viton

Silicone

Neoprene (CR)

Aflas (FEPM)

Sponge Cord

View All Materials →

All standard durometers available across stocking materials. Specialty compounds and non-stocking materials available on request — contact us for availability.

Ready to get started?

Use our online ring creator to spec and submit your ring, or send us your requirements directly and we'll respond within one business day.

Or reach us at sales@alliedseals.com or 847-673-2080.

Create a Ring → Request a Quote →