The price applies to a single item. Due to the packaging on the strip, please order in multiples of 4 pieces.
Maruni Plug Patch is a combination of a plug and a patch, offering a convenient and safe solution for repairing both bias-ply and radial tires.
The plug fills the injury channel, protecting the steel belts from corrosion. With the use of the Plug Patch, the repair is complete and ensures long-lasting performance.
Please note: Plug Patches should only be used for tread punctures at an angle of no more than 20 degrees. For punctures with a greater angle, a STEM plug should be used instead.
Maruni Plug Patches are available in the following sizes:
- 3 mm plug with 25 mm patch
- 4.5 mm plug with 35 mm patch
- 7 mm plug with 40 mm patch
- 9 mm plug with 56 mm patch
- 12 mm plug with 80 mm patch
How to Properly Repair a Tire Using a Maruni Plug Patch
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| Use pliers to remove the foreign object from the tire, then mark the injury location with chalk. | Ream the injury several times with a carbide cutter from the outside of the tire. | Ream the injury again from the inside of the tire. |
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| Position the Plug Patch so the injury is centered under the head, then trace an outline slightly larger than the patch. | Apply Liquid Buffer to the marked area to remove grease and dirt from the bonding surface. | Use a scraper to clean the area thoroughly. |
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| Mechanically buff the marked area using a low-speed grinder. | Use a pneumatic vacuum to remove all rubber dust and debris. | Evenly and thoroughly apply Super Valkarn vulcanizing cement to the prepared area and allow it to dry completely. |
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| Apply a few drops of Super Valkarn into the injury channel. | Coat the black portion of the Plug Patch stem with Super Valkarn cement. | Loosen the tire spreader. Insert the plug wire into the injury channel from the inside of the tire. Do not touch the bonding surface of the patch. |
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| Use pliers to pull the plug stem through the hole. | Press down on the plug using the roller, working from the center toward the edges to remove air from the sealing area. | Cut the plug so that a 2–3 mm section remains protruding from the tire |
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| Coat the area around the patch with Sealiner to prevent air leaks. The repair is complete. |