Universal Patch - Medium Square 57 mm (1 pc) - 2-11-311
- Universal patch for repairs. 5,7cm. Square. Euro-style. With blue vulcanizing gum, rubber.
Universal EURO Tire Patch 57 mm – Radial and Diagonal, Xtra Seal
Tire repair patch | EURO type, universal | Brand: Xtra Seal | Sold as: 1 pc.
The Universal EURO patch 57 mm from Xtra Seal has a square shape with rounded corners — a notably larger format than the round 38 mm and 48 mm variants — built for nail puncture repairs that need a wider reinforcement margin around the puncture channel. It's particularly suited to truck and agricultural tires, where the thicker casing and higher working pressure make a wider patch margin directly relevant to how long the repair holds. It can be used on its own or with a STEM plug. The slit mylar backing is peeled off right before mounting. It works with cold and hot vulcanization.
Product Overview – Universal EURO Patch 57 mm 11-311
The patch consists of black rubber over a blue tie gum, which creates a durable bond with the inner liner surface once cured. Thin, even edges lower the risk of the patch lifting at the edges and make it harder for dirt to collect around the repair.
Used on its own as an inner liner seal, or together with a STEM repair plug — the plug fills the puncture channel from the outside while the patch seals and reinforces the repair from the inside. The slit mylar backing is peeled off right before the patch is applied to the prepared, cement-coated inner liner surface.
Features and Specifications
Larger format than the round 38 mm and 48 mm variants, for repairs needing a wider reinforcement margin.
Fits both tire constructions — not limited to radial tires only.
Can be used alone or as part of a combined STEM plug and patch repair.
Creates a durable, sealed bond between the patch and the tire inner liner.
Protects the patch base from contamination and peels off easily right before mounting.
Works with chemical cold cure and hot vulcanization.
Technical Specifications
| Parameter | Value |
|---|---|
| Part number | 11-311 |
| Brand | Xtra Seal USA |
| Product type | Universal EURO tire patch |
| Size | 57 mm |
| Shape | Square with rounded corners |
| Material | Black rubber over blue tie gum |
| Protective layer | Slit mylar |
| Application | Radial and diagonal tires |
| Cure methods | Cold, hot |
| Compatibility | STEM repair plugs |
| Sold as | 1 piece |
Applications
Where This Patch Is Used
- Nail puncture repairs in truck tires under high working pressure
- Nail puncture repairs in radial and diagonal agricultural and construction tires
- Repairs needing the maximum margin available in the universal EURO patch line
- Inner liner sealing — used alone or paired with a STEM plug
- Professional tire repair shops and vulcanizing workshops
Frequently Asked Questions
How does the 11-311 differ from the 48 mm variant (11-309)?
Both are universal EURO patches for radial and diagonal tires, compatible with STEM plugs. The difference lies in size and shape: the 57 mm has a square shape with rounded corners and is notably larger than the round 48 mm variant, used where a wider reinforcement margin is needed — primarily on truck and agricultural tires running at high working pressures.
Does the 57 mm patch replace radial repair inserts for truck tire repairs?
No — universal patches and cord-reinforced radial inserts serve different repair scenarios. The 57 mm patch suits standard nail puncture repairs where sealing the puncture channel is the goal. Radial inserts with cord (such as those in the 2-11-AR line) are used for damage that needs structural reinforcement of the tire crown — larger punctures or tears that a nail puncture patch can't handle on its own.
Which cements work with the 11-311 patch?
The manufacturer recommends Xtra Seal Standard cement (14-008) or Super-Blu (14-511) for cold-cure vulcanization. After mounting, sealing the patch edges and buffed surface with Sealiner is recommended.