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RADIAL PATCH MARUNI MR-25 119x133mm
High-Performance Tire Repair Patches – Maruni MR
Crafted from reinforced, durable, and flexible rubber, these repair patches are embedded with strong nylon fibers and coated with a special high-temperature-resistant layer. They are designed for permanent tire repairs and suitable for both cold and hot vulcanization methods.
Key Features:
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Enables the repair of damage in any part of the tire, within repairable limits.
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Allows for large damage to be repaired using a relatively small insert.
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Fast and reliable vulcanization process.
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Compatible with both cold and hot repair applications.
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For best results, use in combination with Super Valkarn vulcanizing cement and Sealiner Sealant.
Tire Repair Using Maruni MR Patch and STEM Plug – Step-by-Step:
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Use pliers to remove any foreign object from the puncture and mark the damaged area with chalk.
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Ream the hole multiple times from both the inside and outside of the tire using a carbide cutter.
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Thread the STEM plug through the insertion tool (not necessary for plugs with integrated wire).
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Remove the protective film from the STEM plug and coat it with Super Valkarn vulcanizing cement.
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Apply a small amount of Super Valkarn into the puncture channel.
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Pull the plug through the tire using pliers from the outside, ensuring part of the plug protrudes inside the tire.
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Cut the inner end of the plug to leave 2–3 mm above the tire’s inner surface.
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Position the MR patch over the puncture and mark a slightly larger area with chalk. Ensure the direction arrows point toward the bead of the tire.
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Clean and chemically roughen the marked area using Liquid Buffer. Remove dirt and grease with a scraper.
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Use a pneumatic vacuum to clear away dust and rubber particles.
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Evenly apply Super Valkarn to the prepared surface and wait until it dries completely.
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Remove the protective layer from the MR patch without touching the bonding area. Apply it to the tire, ensuring correct alignment.
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Press the patch firmly using a roller, starting from the center outward to eliminate air bubbles.
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Cut the protruding end of the plug on the outer side of the tire, leaving 2–3 mm.
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Seal the repaired area with Maruni Sealiner to prevent air leaks.
Repair is now complete.