J-B Weld - WikiHQ

right|thumb|200px|A package of J-B Weld, showing "hardener" (red tube) and "steel" (black tube of resin): equal amounts are squeezed from both tubes and mixed

The J-B Weld Company is an international company based in Sulphur Springs, Texas that produces epoxy products. J-B Weld (stylized as J-B WELD)  is their flagship product: a specialized, high-temperature epoxy adhesive for use in bonding materials together. The company has run advertisements showing engine block repair with J-B Weld.

The J-B Weld Company, founded in 1969 by Sam Bonham in Sulphur Springs 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 which can bond various surfaces and withstand high temperatures up to 500 °F (260 °C) constantly and 600 °F (316 °C) for short periods of time. 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 which 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 began in 1969 in Sulphur Springs, Texas. Sam Bonham, at the time running a machine shop, discovered a way to create what he called a "tougher than steel" epoxy.

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) which can withstand high-temperature environments. J-B Weld can be used to bond surfaces made from metal, porcelain, ceramic, glass, marble, PVC, ABS, concrete, fiberglass, wood, fabric, or paper. Alcohol should be avoided when cleaning surfaces, as it can degrade the bond. J-B Weld can also be used inside a microwave oven, exposed to microwave radiation instead of infrared radiation (heat). 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, which can withstand medium-temperature environments (up to ). However, J-B Kwik has the same adhesion () as J-B Weld, and does not shrink when hardening.