Cross-Ply Patch BN3 (2ply) 89 mm - 2-11-490
- Patch for tire repairs. 8,9cm. 2ply. For agricultural vehicles. Bias ply.
Bias Tire Patch EURO BN3 89 mm (2-Ply) – Xtra Seal
Diagonal tire repair insert | Type BN3, 2-ply cord | Brand: Xtra Seal | Sold as: 1 pc.
The EURO bias tire patch BN3 89 mm from Xtra Seal is a 2-ply repair insert built exclusively for bias-ply tires — both tube-type and tubeless. It shares the same cord count as the BN2, but with a notably wider diameter (89 mm versus 75 mm), allowing it to cover a broader damage area while maintaining the same cord strength. Like the other patches in this line, it can also serve as a valve housing for tube valves in truck and agricultural inner tubes. The slit mylar backing is peeled off right before mounting. It works with cold and hot vulcanization.
Product Overview – Bias Tire Patch EURO BN3 89 mm 11-490
The patch consists of black rubber over a blue tie gum, which creates a durable bond with the inner liner surface once cured. Two layers of crosswise bias cord reinforce the repair area in line with the bias tire's own structure. Thin, even edges lower the risk of the patch lifting at the edges.
Like the BN1 and BN2, the BN3 can serve as a valve housing for truck and agricultural inner tubes — useful when the original valve housing is damaged. The slit mylar backing is peeled off right before the patch is applied to the prepared, cement-coated inner surface.
Features and Specifications
Two layers of crosswise cord — same structural strength as BN2, wider coverage area.
Notably wider than the BN2 (75 mm) — for damage requiring broader area coverage.
Works with both tube-type and tubeless bias tires.
Creates a durable, sealed bond between the patch and the tire inner surface.
Protects the patch base from contamination and peels off easily right before mounting.
Can also serve as a tube valve housing for truck and agricultural inner tubes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part number | 11-490 |
| Brand | Xtra Seal USA |
| Product type | Bias EURO tire patch |
| Designation | BN3 |
| Diameter | 89 mm |
| Cord layers | 2 (bias/diagonal) |
| Material | Black rubber over blue tie gum |
| Protective layer | Slit mylar |
| Primary use | Bias-ply tire repair (tube-type and tubeless) |
| Secondary use | Tube valve housing for truck and agricultural tubes |
| Cure methods | Cold, hot |
| Sold as | 1 piece |
Applications
Where This Patch Is Used
- Repair of bias-ply truck tires with wide damage areas
- Repair of bias-ply tires on agricultural and construction equipment
- Repairs requiring wide coverage at 2-ply cord strength
- Tube valve housing for truck or agricultural inner tubes
- Professional tire repair shops and vulcanizing workshops
Frequently Asked Questions
How does the BN3 differ from the BN2?
The BN2 (11-489) has a 75 mm diameter and two cord layers; the BN3 (11-490) has 89 mm and the same two cord layers. The structural strength of the cord is identical — the only difference is diameter. The BN3 is chosen when the damage area is too wide for the BN2, but no additional cord ply is required.
Can BN3 bias patches be used on radial tires?
No — the bias cord insert is built for bias-ply tires only. The crosswise cord arrangement matches the structure of a bias tire; using this patch in a radial tire goes against repair technology guidelines. For radial tires, radial-cord repair inserts should be used.
Which cements work with the 11-490 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.