Foil-back Tube Patch 35 mm (1 pc) - 1-11-NT038
- For tube repairs. With foil back. 3,5cm. Patch.
Tube Patch 35 mm – Aluminum Foil, Xtra Seal
Inner tube repair patch | Aluminum foil | Brand: Xtra Seal | Sold as: 1 pc.
The 35 mm tube patch from Xtra Seal is a round repair patch on an aluminum foil layer for bicycle, motorcycle, and car inner tubes. Among the individually sold aluminum-foil patches in this range, it's the larger size — suited for punctures where the 26 mm patch wouldn't leave enough reinforcement margin, while the damage itself doesn't yet call for a EURO-style patch. The aluminum foil protects the patch base from contamination and is peeled off right before the patch goes onto the tube. It works with both cold and hot vulcanization.
Product Overview – 35 mm Tube Patch 11-NT038
The patch is used on tube punctures where a bit more reinforcement margin around the hole is needed than the smaller sizes provide. The rubber compound bonds into a repair stronger than the tube material itself after curing — hence the manufacturer's claim of strength up to twice that of the repaired tube.
The aluminum foil is peeled off right before the patch is applied to the prepared, cement-coated tube surface — until that point, it protects the patch base from dust and accidental contamination.
Features and Specifications
The larger individually sold aluminum-foil patch, for punctures needing wider reinforcement margin.
Protective layer that keeps the patch base clean, removed right before mounting.
Bond strength up to twice that of the repaired tube material.
Works with chemical cold cure and hot vulcanization.
Available as a single piece — no need to purchase a full box.
A simple mounting process that doesn't require specialized equipment.
Technical Specifications
| Parameter | Value |
|---|---|
| Part number | 11-NT038 |
| Brand | Xtra Seal USA |
| Product type | Round tube patch |
| Diameter | 35 mm |
| Protective layer | Aluminum foil |
| Cure methods | Cold, hot |
| Application | Bicycle, motorcycle, and car inner tube repair |
| Sold as | 1 piece |
Applications
Where This Patch Is Used
- Repairing punctures in bicycle inner tubes needing more margin than smaller formats provide
- Repairing motorcycle inner tubes
- Repairing car inner tubes
- Tire repair shops and general repair workshops
- Cold cure with Xtra Seal cement, or hot vulcanization
Frequently Asked Questions
How does the 11-NT038 differ from the 26 mm variant (11-NT032)?
Both are individually sold Xtra Seal tube patches on aluminum foil — they differ in diameter: 35 mm versus 26 mm. The 35 mm format is the right choice when the smaller patch wouldn't leave enough margin around the damage. The same sizing rule applies to both: the patch should be at least twice the diameter of the hole in the tube.
Is the aluminum foil removed before or after applying the patch?
Before — the foil is a protective layer that keeps the patch base clean. It's peeled off right before the patch is pressed onto the cement-coated tube surface, not after the repair is complete.
Which cements work with the 11-NT038 patch?
The manufacturer recommends Xtra Seal's universal cement or the blue Super-Blu cement, applied following the standard tube repair procedure: clean and buff the surface, apply the cement, let it dry, then position and press down the patch.

