About J-B Weld

The J-B Weld Company was founded in 1969 by Sam and Mary Bonham. Sam had discovered a need for a “cold weld” product to use in his truck service garage, instead of traditional torch welding. Working with a Texas A&M chemist, he formulated an original “tougher than steel” two-part epoxy and named it J-B Weld. Sam and Mary soon went from selling the product out of their car to auto parts jobbers across Texas, to selling it in stores throughout the U.S. and internationally.

In 2008 the company was purchased by a group of private investors. The product line has also been broadened to meet the changing needs of customers, including new adhesives for metal, wood, plastic, and general purpose use.

Today, J-B Weld is recognized as a global leader in ultra high-strength epoxies, sealants and adhesives for a wide range of applications from home DIY to professional workshops and large scale industrial projects.

From products that bond steel, concrete, brick, plastics, composite, ceramics and porcelain, wood and so much more, and products that will set and cure underwater or tolerate extreme heat or vibrations, J-B Weld has what you need to get the job done.

In South Africa, J-B Weld is proudly represented by Keizin Automotive, exclusive importer and distributor of the complete range.

Where can JB Weld be used?

JB Weld literally has thousands of uses. Here are just a few ideas where J-B Weld is used everyday around the world:


  • Propeller repairs
  • Filling aluminium corrosion pitting
  • Stainless steel rudder gudgeon
  • Seal window glass to frame
  • Air conditioning units
  • Surf board fins and straps
  • Lining perforated fuel tanks
  • Repairs to wood and metal parts
  • Repairs to fibreglass including boat hulls
  • Cracked outboard motor case
  • Jet skis and other watercraft
  • Cracked Cylinder Heads
  • Sealing ponds and water features
  • Repairing chips and cracks in swimming pools – underwater


  • Water pumps
  • Cooling systems
  • Alternator brackets
  • Motorcycle fairings
  • Air conditioning units
  • Cracked cylinder heads
  • Gear box casing
  • Retapping stripped threads
  • Broken wing mirrors
  • Cracked/split bumpers
  • Exhaust repairs – from manifold to tail pipe
  • Repairing broken ignition keys
  • Cracked engine blocks
  • Engine mounting brackets
  • Number plate light housing
  • Aluminium corrosion pitting
  • Window glass to frame
  • Broken gear box casings
  • Attaching Alternator Magnets
  • Axel Repairs
  • Carburettor Repairs
  • Combustion Chamber Cracks
  • Corroded Cylinders
  • Spark Plug repairs
  • Injector seat Repair
  • Thermostat housing
  • Radiator repairs
  • Timing chain cover
  • Window winder repair
  • Joining composite panels


  • Model aircraft engine exhausts
  • Children’s toys
  • Doorknobs and handles
  • Fixing screws to plaster/masonry
  • Air conditioning units
  • Terracotta pot repairs
  • Coffee percolator cases
  • Kitchen utensil repairs
  • Cracked ceramic water fountain
  • Broken concrete garden or ornamental features
  • Snooker cues
  • Golf clubs
  • Sealing leaks on dishwashers
  • Repairing broken dentures
  • Bonding heals & soles to shoes
  • Washing machine repairs
  • Metal light fittings
  • Repairs to broken furniture
  • Repairs to wood, metal and glass
  • Cupboard door hinge repairs
  • Oven door repairs
  • Fish ponds and water features
  • Plumbing and sewer line pipe leaks
  • Fireplace and Braai repairs
  • General house maintenance repairs


  • Automotive workshops
  • Marine craft workshops
  • Composite product manufacturers
  • Aviation Maintenance Organisations
  • Cracked cylinder heads
  • Filling casting defects in foundries
  • Model casting made of J-B Weld for resin figurines
  • Cast iron radiator leaks
  • Filling corrosion pitting on Aluminium for bonding silicon chips
  • Approved for use by Indian Railways
  • Widely used by military for field repairs
  • Gasket maker
  • Construction