ZERINT Tire Repair Combination Units TP-107W 3/8 in x 2 in — 24 Pack, Wrapped Stem & Bonded Patch

ZERINT TP-107W is a combination tire repair unit featuring a 3/8" wrapped stem and a 2" patch, supplied as 24 ready-to-use pieces for repairing radial and bias ply tires.

This repair kit pairs a molded plug stem with a bonded patch to create a durable, permanent-style repair where the plug seals the puncture channel and the patch restores the inner liner. Each unit has a gray vulcanizing gum layer and a blue polyethylene backing; the stem is fully wrapped in premium vulcanizing gum to promote chemical or heat vulcanization. Designed for professional tire service and mobile repair setups, these combination units are compatible with both radial and bias construction tires.

How does the combination stem-and-patch design work?

The TP-107W merges a tapered, wrapped stem with an integral patch so you can address both the bore and the inner liner breach in a single operation. The stem fills and seals the puncture tunnel, while the patch bonds to the inner tire surface to restore airtightness and structural integrity.

• Stem: 3/8" diameter, wrapped in vulcanizing gum to bond inside the puncture.
• Patch: 2" (50 x 9 mm) rubber backing to reline the inner surface.
• Integrated gum layers compatible with chemical or heat vulcanization methods.
• Blue polyethylene backing protects the patch until installation.

What tires and punctures are suitable for TP-107W?

These combination units are engineered for a wide range of service applications and are suitable for both radial and bias ply tires. They are intended for non-repairable belts or sidewall damage exclusion—use on casing or tread area punctures that meet serviceability guidelines.

• Recommended for tread-area punctures in passenger, light truck, and similar tires.
• Not intended for sidewall or shoulder repairs where structural integrity is compromised.
• Works with holes that can be accessed and cleaned to accept the 3/8" stem.
• Follow tire manufacturer and industry repair standards for safety.

How should technicians install these repair units?

Installation involves reaming the puncture channel, seating the wrapped stem through the tire, then vulcanizing the patch to the inner liner. Use either approved chemical vulcanizing agents or heat vulcanization equipment according to established tire repair procedures.

• Prepare the hole: remove debris and roughen the bore to accept the stem.
• Insert the unit until the patch lies flat against the inner liner.
• Apply chemical or heat vulcanization to activate the gray gum and bond the assembly.
• Trim excess stem material flush with the tread after curing.

Each box contains 24 combination repair units, packaged for professional use and mobile services. The gray vulcanizing gum and blue poly backing protect the components and aid handling during installation.

Who is this product for? The ZERINT TP-107W is aimed at tire service professionals, fleet maintenance shops, and mobile repair technicians who need a compact, integrated repair solution that addresses both the puncture tunnel and inner liner in one step. If you routinely perform in-shop or roadside tire repairs on passenger and light truck tires and follow industry vulcanization practices, these pre-wrapped stem-and-patch units offer a fast, reliable option for approved tread-area repairs.