The J-B Weld Company is an international company that produces

epoxy Epoxy is the family of basic components or Curing (chemistry), cured end products of epoxy Resin, resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide fun ...

products. The home office is based in

Sulphur Springs, Texas Sulphur Springs is a city in and the county seat of Hopkins County, Texas, United States. As of the 2020 United States Census, 2020 census, its population was 15,941. Sulphur Springs is located in Northeast Texas. History Sulphur Springs

engine block In an internal combustion engine, the engine block is the structure that contains the cylinders and other components. The engine block in an early automotive engine consisted of just the cylinder block, to which a separate crankcase was attach ...

repair with J-B Weld. The J-B Weld Company, founded in 1969 by Sam Bonham in Sulphur Springs, Texas, specializes in epoxy products. Initially, the company sold to automotive shops in Texas, but now distributes its products across the United States and in 27 other countries through various retail channels. After being purchased by private investors in 2008, the company expanded its product line, which originally included J-B Weld, J-B Kwik, J-B Stik, and Waterweld. J-B Weld epoxy is a two-part adhesive that can bond various surfaces and withstand high temperatures up to 500 °F (260 °C) constantly and 600 °F (316 °C) for short periods. It is water-resistant, petroleum/chemical-resistant, acid-resistant, and resists shock, vibration, and temperature fluctuations. The product consists of a resin and a hardener that need to be mixed before application. The mixture sets in 4-6 hours and fully cures in up to 15 hours. It can be used as an adhesive, laminate, plug, filler, sealant, or electrical insulator and can be drilled, ground, tapped, machined, sanded, and painted when cured. J-B Kwik is a faster-curing two-part epoxy with medium-temperature resistance up to 300 °F (149 °C). Although not as strong or heat-resistant as J-B Weld, it has the same adhesion and does not shrink when hardening. J-B Kwik is waterproof, petroleum/chemical-resistant, acid-resistant, and resists shock, vibration, and extreme temperature fluctuations.

History

The company had its beginnings in 1969"Abou
J-B Weld
Company", ChemicalWIKI.com, 2020, https://chemicalwiki.com/j-b-weld-incorporated/ JB-WELD about] in

. Sam Bonham, at the time running a machine shop, discovered a way to create what he called a "tougher than steel" epoxy. In 1968, Sam's future wife Mary persuaded him to sell his invention and he founded the J-B Weld Company. After founding the company, Sam stated: "My life's dream is for J-B Weld to be all the way around the world, and for me to see an 18-wheeler load out of here with nothing but J-B Weld." After Sam's death in 1989, Mary opened a European hub in London, internationalizing the J-B Weld Company and the distribution of the product. Initially, the company sold to automotive shops and jobbers in Texas. Now, the J-B Weld Company distributes its products through multiple retail channels - including automotive chains, home improvement centers, hardware stores, and farm stores - and does business in all states in the United States, as well as in 27 other countries. In 2008 the company was purchased by a group of private investors. Led by CEO Chip Hanson, they have expanded the product lines.

Products

The J-B Weld Company's original product line focused on a small number of products: J-B Weld (original 2-tube epoxy), (4-hour epoxy), ( epoxy putty), Waterweld (underwater adhesive/filler), and a few others."J-B Weld Company - Products Overview", JBWeld.net, 2004
JBWeld-products
Since 2008, the company has broadened the product line to add J-B SteelStik, KwikWood, PlasticWeld, MarineWeld, Perm-O-Seal, WoodWeld and ClearWeld.

J-B Weld epoxy

J-B Weld is a two-part epoxy adhesive (or filler) that can withstand high-temperature environments. J-B Weld can be used to bond surfaces made from metal,

porcelain Porcelain (), also called china, is a ceramic material made by heating Industrial mineral, raw materials, generally including kaolinite, in a kiln to temperatures between . The greater strength and translucence of porcelain, relative to oth ...

ceramic A ceramic is any of the various hard, brittle, heat-resistant, and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcela ...

, glass, marble, PVC, ABS, concrete,

fiberglass Fiberglass (American English) or fibreglass (English in the Commonwealth of Nations, Commonwealth English) is a common type of fibre-reinforced plastic, fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened i ...

, wood, fabric, or paper."J-B Usage Instructions", JBWELD.net, 2004
JBWELD-use
"Repair Products UK Ltd: Metal Glue - J-B Weld", Repair Products UK Ltd, 200

Alcohol should be avoided when cleaning surfaces, as it can degrade the bond. J-B Weld is water-resistant, petroleum/chemical-resistant (when hardened), and acid-resistant. It also resists shock, vibration, and extreme temperature fluctuations. J-B Weld can withstand a constant temperature of , and the maximum temperature threshold is approximately for 10 minutes."Frequently Asked Questions", JBWELD.net, 2004
JBWELD-faq
J-B Weld can also be used inside a

microwave oven A microwave oven, or simply microwave, is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This induces Dipole#Molecular dipoles, polar molecules in the food to rotate and ...

, exposed to

microwave Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequency, frequencies between 300&n ...

radiation instead of

infrared Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those ...

radiation (heat). The product is contained in 2 separate tubes: the "steel" (black tube of resin) and the "hardener" (red tube). Equal amounts are squeezed from both tubes and mixed. For the best bond, surfaces should be roughened (or scratched) with fine or coarse sandpaper. When first mixed, J-B Weld is subject to sagging or running (slow dripping); even more so at warmer temperatures. After about 20 minutes the mixture begins to thicken into a putty that can be shaped with a putty knife or wooden spatula. The mixture will set enough for the glued parts to be handled within 4–6 hours, but requires up to 15 hours at cool temperatures to fully cure and harden. Temperatures above shorten all these times. After the initial setting period of a few hours, heat (e.g. from a heat lamp or incandescent light bulb placed near the bond) will speed the curing time. J-B Weld can be used as an adhesive, laminate, plug, filler, sealant, or electrical insulator. When fully cured, J-B Weld can be drilled, formed, ground, tapped, machined, sanded, and painted. While J-B Weld Original epoxy dries to a dark grey color, J-B Weld's ClearWeld epoxy dries clear. Although its bond is not quite as strong as the Original's (3900 psi vs. 5020 psi), ClearWeld is often preferred when appearance is an important consideration.

J-B Kwik epoxy

J-B Kwik (stylized as J-B KWIK) is a two-part epoxy, intended as an adhesive or filler, that can withstand medium-temperature environments (up to ). J-B Kwik cures much more quickly, but it is not as strong or as heat-resistant as the original J-B Weld."J-B KWIK Product Information", JBWeld.net, 2009
JBKwik
However, J-B Kwik has the same adhesion () as J-B Weld, and also does not shrink when hardening. J-B Kwik can be used to bond surfaces made from any combination of iron, steel, copper, aluminum, brass, bronze, pewter, plus

, wood,

, glass, marble, PVC, ABS, concrete, fiberglass, fabric, or paper. J-B Kwik is waterproof, petroleum/chemical-resistant (when cured), acid-resistant; plus resists shock, vibration, and extreme temperature fluctuations.

References

External links