8" Brown Self-Vulcanizing Tire Plug Strings - Heavy-Duty Tubeless Flat Repair - 30 to 1800 pack - Made in USA

Quickweld 8" brown self-vulcanizing tire plug strings are designed for fast, effective puncture repair in large radial and tubeless tires. These heavy-duty inserts deliver strong compression sealing and are trusted by commercial fleets, tire shops, and service technicians nationwide.

Key Features

• 8" thick brown tire repair strings for heavy-duty radial and tubeless tires
• Self-vulcanizing butyl rubber bonds internally to seal punctures securely
• Use as a temporary repair or permanent solution when paired with an inside patch
• Ideal for use in commercial truck tires, industrial vehicles, and agricultural equipment
• Installs quickly using standard tire repair tools—no cement required for temporary use
• Compatible with steel-belted radials and large tread channels
• Replaces: Tech ST1937US and equivalent tire plug models
• Made in the USA using premium domestic rubber compounds

Technical Specifications

• Length: 8 inches (203.2 mm)
• Material: Self-vulcanizing butyl rubber
• Plug Type: Compression insert string for tubeless tire puncture repair
• Application: Temporary or permanent tire repair (with patch)
• Packaging: Available in bulk quantities for shop or fleet use
• Compatibility: Fits commercial truck, trailer, industrial, and off-road tires

Application Notes

These extra-long 8" plug strings are ideal for repairing deeper or larger punctures found in high-load commercial and off-road tires. For a permanent seal, use in conjunction with an inside patch repair unit as recommended by tire industry standards. Always ensure tire is deflated and prepped before installation.