J-B Weld
Encyclopedia
Epoxy
Epoxy, also known as polyepoxide, is a thermosetting polymer formed from reaction of an epoxide "resin" with polyamine "hardener". Epoxy has a wide range of applications, including fiber-reinforced plastic materials and general purpose adhesives....
products. The home office is based in Sulphur Springs, Texas
Sulphur Springs, Texas
Sulphur Springs is a city in Hopkins County, Texas, in the United States. As of the 2000 census, the city population was 14,551. It is the county seat of Hopkins County.-Geography:Sulphur Springs is located at ....
(USA). Also, J-B WELD is the name of their flagship product: a specialized, high-temperature epoxy
Epoxy
Epoxy, also known as polyepoxide, is a thermosetting polymer formed from reaction of an epoxide "resin" with polyamine "hardener". Epoxy has a wide range of applications, including fiber-reinforced plastic materials and general purpose adhesives....
adhesive for use in bonding materials together (see below: J-B WELD epoxy). The company is famous for its advertisements showing engine block
Internal combustion engine
The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high -pressure gases produced by combustion apply direct force to some component of the engine...
repair with J-B WELD.
History
The company had its beginnings in the mid 1960s. 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 founded the J-B WELD Company. Initially, they sold to automotive shops in TexasTexas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
. The company currently does business in all states in the United States, and in 27 foreign countries.
Sam died suddenly in 1989. He had commented before his death, "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." Within a year of his death, Mary had opened a European hub in London, England, internationalizing the J-B Weld company and the distribution of the product.
Products
| Product: JB-WELD | |
| Type: | 2-part epoxy Epoxy Epoxy, also known as polyepoxide, is a thermosetting polymer formed from reaction of an epoxide "resin" with polyamine "hardener". Epoxy has a wide range of applications, including fiber-reinforced plastic materials and general purpose adhesives.... |
| Surfaces: | Metal, wood, fiberglass Fiberglass Glass fiber is a material consisting of numerous extremely fine fibers of glass.Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling... , PVC PVC Polyvinyl chloride is a plastic.PVC may also refer to:*Param Vir Chakra, India's highest military honor*Peripheral venous catheter, a small, flexible tube placed into a peripheral vein in order to administer medication or fluids... , ABS Acrylonitrile butadiene styrene Acrylonitrile butadiene styrene is a common thermoplastic. Its melting point is approximately 105 °C .... , concrete, ceramic Ceramic A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous... , glass, and fabric |
| Avoid: | Clean slick/oily surfaces; do not use alcohol |
| Temperature (max.): | 600 °F (315.6 °C) at 10 minutes |
| Temperature (min.): | -55 °C |
| Set time: | 4–6 hours |
| Harden time: | 15 hours, but sooner under heat lamp or incandescent light bulb after 6 hours |
| Preparation: | Sanding, acetone, lacquer thinner, or soap (DO NOT use alcohol or petroleum solvents) |
| Health issues: | Avoid contact with eyes or with skin (wash with soap and water); bonds with skin; non-toxic if ingested |
| Removal: | When dry, by filing or rasping |
| Strength (psi/MPa): | Tensile strength: 3960 psi (27.3 MPa), Adhesion: 1800 psi (12.4 MPa), Flex strength: 7320 psi (50.5 MPa), and Tensile lap shear: 1040 psi (7.2 MPa) |
| Shrinkage: | 0.0% |
| Product: JB-KWIK | |
| Type | 2-part epoxy Epoxy Epoxy, also known as polyepoxide, is a thermosetting polymer formed from reaction of an epoxide "resin" with polyamine "hardener". Epoxy has a wide range of applications, including fiber-reinforced plastic materials and general purpose adhesives.... |
| Surfaces: | Metal, wood, fiberglass Fiberglass Glass fiber is a material consisting of numerous extremely fine fibers of glass.Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling... , PVC PVC Polyvinyl chloride is a plastic.PVC may also refer to:*Param Vir Chakra, India's highest military honor*Peripheral venous catheter, a small, flexible tube placed into a peripheral vein in order to administer medication or fluids... , ABS Acrylonitrile butadiene styrene Acrylonitrile butadiene styrene is a common thermoplastic. Its melting point is approximately 105 °C .... , concrete, ceramic Ceramic A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous... , glass, fabric |
| Avoid: | Slick, oily surfaces |
| Temperature (max.): | 300 °F (148.9 °C) |
| Set time: | 4 minutes |
| Harden time: | 4 hours |
| Health issues: | Avoid contact with eyes or with skin (wash with soap and water); non-toxic if ingested |
| Removal: | When dry, by filing or rasping |
| Strength (psi/MPa): | Tensile strength: 2100 psi (14.5 MPa), Adhesion: 1800 psi (12.4 MPa), Flex strength: 7320 psi (50.5 MPa), and Tensile lap shear: 1040 psi (7.2 MPa) |
| Shrinkage: | 0.0% |
The J-B Weld Company provides several different products: J-B WELD (original 2-tube epoxy), (4-hour epoxy), (epoxy putty
Epoxy putty
Epoxy putty is a room-temperature-hardening substance used as a space-filling adhesive. It is stored until use as two components of clay-like consistency. Kneading the two components into each other creates an exothermic chemical reaction that activates the substance for use by catalyzing an...
), WATERWELD (underwater adhesive/filler), and other products.
J-B WELD epoxy
The product 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
Porcelain is a ceramic material made by heating raw materials, generally including clay in the form of kaolin, in a kiln to temperatures between and...
, wood, ceramic
Ceramic
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous...
, or glass, plus marble, PVC
PVC
Polyvinyl chloride is a plastic.PVC may also refer to:*Param Vir Chakra, India's highest military honor*Peripheral venous catheter, a small, flexible tube placed into a peripheral vein in order to administer medication or fluids...
, ABS
Acrylonitrile butadiene styrene
Acrylonitrile butadiene styrene is a common thermoplastic. Its melting point is approximately 105 °C ....
, concrete, fiberglass
Fiberglass
Glass fiber is a material consisting of numerous extremely fine fibers of glass.Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling...
, wood, fabric, or paper. Avoid using alcohol to clean surfaces.
J-B WELD is water-proof, petroleum/chemical-resistant (when dry), acid-resistant, plus resists shock, vibration, and extreme temperature fluctuations. J-B WELD can withstand a constant temperature of 500 °F (260 °C), and the maximum temperature threshold is approximately 600 °F (315.6 °C) for 10 minutes. J-B WELD can also be used inside a microwave oven
Microwave oven
A microwave oven is a kitchen appliance that heats food by dielectric heating, using microwave radiation to heat polarized molecules within the food...
, exposed to microwave
Microwave
Microwaves, a subset of radio waves, have wavelengths ranging from as long as one meter to as short as one millimeter, or equivalently, with frequencies between 300 MHz and 300 GHz. This broad definition includes both UHF and EHF , and various sources use different boundaries...
radiation instead of infrared
Infrared
Infrared light is electromagnetic radiation with a wavelength longer than that of visible light, measured from the nominal edge of visible red light at 0.74 micrometres , and extending conventionally to 300 µm...
radiation (heat).
The product is contained in 2 separate tubes: the "hardener" (red tube) and the "steel" (black tube of resin). Equal amounts are squeezed from both tubes and mixed. For the best weld, surfaces should be roughened (or scratched) with fine or coarse sandpaper.
The mixture will set up, for handling, within 4–6 hours, but requires 15 hours (at cool temperatures) to fully cure and harden. When first mixed, J-B WELD is subject to sagging or running (slow dripping), more so at warmer temperatures. After about 20 minutes the mixture begins to thicken into a putty that can be shaped, which becomes hard after 4–6 hours. Within 3 hours (in cool temperatures), the putty can be shaped (with a putty knife or wooden paddle) into a weld bead or extruded shape.
J-B WELD works faster when used in above 50 °F (10 °C). After J-B WELD has cured for the first six hours, a heat lamp or incandescent light bulb placed near the weld will speed the curing time. An application might sag or drip before 4–6 hours, at which time it has hardened.
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. However, until dry, it could sag or drip when applied.
About alcohol
The JB Weld company advises "DO NOT" use alcohol to clean surfaces. Denatured alcohol (ethanolEthanol
Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug and one of the oldest recreational drugs. Best known as the type of alcohol found in alcoholic beverages, it is also used in thermometers, as a...
) acts as a thinner for J-B WELD or epoxy, so it drips more or runs into cracks. However, rubbing alcohol
Rubbing alcohol
Rubbing alcohol, USP / B.P. is a liquid prepared and used primarily for topical application. It is prepared from a special denatured alcohol solution and contains 97.5-100% by volume of pure, concentrated ethanol or isopropyl alcohol...
(isopropanol and water) should be avoided as a thinner, because of the larger proportions of water.
J-B KWIK epoxy
The product J-B KWIK is a two-part epoxy adhesive (or filler) that can withstand medium-temperature environments (up to 300 °F (148.9 °C)).Because J-B KWIK cures quickly it is not as strong or as heat-resistant as the original J-B WELD. However, J-B KWIK has the same adhesion (1800 psi (12.4 MPa)) as J-B WELD, and also does not shrink when drying.
J-B KWIK can be used to bond surfaces made from any combination of iron, steel, copper, aluminum, brass, bronze, pewter, plus porcelain
Porcelain
Porcelain is a ceramic material made by heating raw materials, generally including clay in the form of kaolin, in a kiln to temperatures between and...
, wood, ceramic
Ceramic
A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous...
, glass, marble, PVC
PVC
Polyvinyl chloride is a plastic.PVC may also refer to:*Param Vir Chakra, India's highest military honor*Peripheral venous catheter, a small, flexible tube placed into a peripheral vein in order to administer medication or fluids...
, ABS
Acrylonitrile butadiene styrene
Acrylonitrile butadiene styrene is a common thermoplastic. Its melting point is approximately 105 °C ....
, concrete, fiberglass, wood, fabric, or paper. J-B KWIK is water-proof, petroleum/chemical-resistant (when cured), acid-resistant, plus resists shock, vibration, and extreme temperature fluctuations.
External links
- J-B WELD Company homepage
- "J-B Usage Instructions", JBWELD.net, 2004, webpage: How-to-use-J-B-WELD.