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a b c d e f "About J-B Weld Company", ChemicalWIKI.com, 2020, https://chemicalwiki.com/j-b-weld-incorporated/ JB-WELD about] Test method: Clamp lapped piece horizontally in machinist vise and deliver end blows with ball peen hammer. If needed, clamp sample in vise vertically and deliver blows to face of sample. We took two pieces of low-carbon steel and roughened their mating surfaces with 60-grit abrasive paper, spread a layer of J-B weld on each surface then joined the pieces using no more than hand pressure. Roy Berendsohn
a b c d e f "Repair Products UK Ltd: Metal Glue - J-B Weld", Repair Products UK Ltd, 2009, RProducts-42. 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. [2] [7]compare https://www.jbweld.com/product/clearweld-syringe vs. https://www.jbweld.com/product/j-b-weld-twin-tube You’ll get your best results with J-B Weld by applying it to a clean, roughened surface. Roughness (within reason) counts for a lot. First, it increases the bond surface area. When seen under magnification, a roughened surface has more area compared to a smooth one. You can picture this pretty easily if you consider, say, the surface of the moon versus the surface of a marble the size of the moon. Although both have theoretically the same surface area, the irregularities on the moon’s surface would provide increased surface to which to apply adhesive. Find sources: "J-B Weld"– news · newspapers · books · scholar · JSTOR ( February 2009) ( Learn how and when to remove this template message)
And, regarding my BMW 2002tii, if the J-B Weld patch fails and I can’t find a replacement cylinder head, I can always, you know, just LS1 it. Since 2008, the company has broadened the product line to add J-B SteelStik, KwikWood, PlasticWeld, MarineWeld, Perm-O-Seal, WoodWeld and ClearWeld. [5] [6] J-B Weld epoxy [ edit ] Me and the car at the “2002: ICON” exhibit at the BMW CCA Foundation Museum in Greer, South Carolina. Rob Siegel J-B Weld is a two-part epoxy adhesive (or filler) that can withstand high-temperature environments.Also, adding reinforcement can increase the strength of the joint. Bonding additional pieces of wood or metal over an epoxied joint can mechanically stiffen the joint and help it to better withstand the variety of forces that act on it. The mixture will set enough for the glued parts to be handled within 4–6 hours, [7] but requires up to 15 hours at cool temperatures to fully cure and harden. Temperatures above 50°F (10°C) shorten all these times. [7] I made it 230 miles to Harmony, Pennsylvania, by nightfall, and I pounded out the remaining 620 miles to Boston the following day without incident.
The company had its beginnings in 1969 [3] 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. [3] In 1968, Sam's future wife Mary persuaded him to sell his invention and he founded the J-B Weld Company. 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." [3] Within a year of his death, Mary had opened a European hub in London, internationalizing the J-B Weld Company and the distribution of the product. [3]
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Test sample: Original Cold-Weld Formula applied to both bond surfaces of low-carbon steel sample pieces and squeezed together with hand pressure.
J-B Weld can be used to bond surfaces made from metal, porcelain, ceramic, glass, marble, PVC, ABS, concrete, fiberglass, wood, fabric, or paper. [7] [8] Alcohol should be avoided when cleaning surfaces, as it can degrade the bond. [9] J-B Weld can be used as an adhesive, laminate, plug, filler, sealant, or electrical insulator. [8] When fully cured, J-B Weld can be drilled, formed, ground, tapped, machined, sanded, and painted. [8] I may be kidding about that, but I’m not kidding about the curiosity that this material has occasioned. Go online. People repair everything under the sun with this stuff. Most of them are small fixes to things on cars, signage, gizmos. Some of these repairs look kind of janky and might have been better executed with welding, bolts, or screws. But who am I to say? The owners seem to be happy with their results. Even though it’s still not leaking, I don’t really consider this a permanent or semi-permanent repair. However, I am continuing to drive the car, maximizing its use until the snow moves into New England. At that time, I’ll pull the head and probably try to find a replacement.The J-B Weld Company's original product line focused on a small number of products: J-B Weld (original 2-tube epoxy), J-B Kwik (4-hour epoxy), J-B Stik ( epoxy putty), Waterweld (underwater adhesive/filler), and a few others. [4] My encounter with JB-Weld at Tractor Supply was an itch I had to scratch. I bought two types of J-B Weld and brought them into the Popular Mechanics shop in an attempt to find out, just how tough this repair material really is. But an oil leak onto the exhaust threatened to derail the trip. The leak was due to the valve cover stud in the lower left corner of the head being stripped in its hole and thus not tightening, which prevented that corner of the valve cover from sealing. This caused oil to drip directly onto the downpipe, which was a clear fire hazard. At the time, I repaired the stripped threads with a Time-Sert (helicoil). The car still appeared to be weeping a small amount of oil through the threads onto one of the exhaust studs, but this is a common problem, as the lower exhaust studs thread directly into oil runoff area on the low side of the head. I made it home without incident, and that spring I road-tripped the car 2000 more miles to other events. There are a few automotive aphorisms that people dispense like hot dogs at a barbecue when what you really want is a cheeseburger. One is, after seeing a photo of an accident, “That’ll buff out.” Another is “LS1 it” (drop a Corvette engine in a car in need of a motor, usually a woeful rat of a car worth less than the LS1). Both sayings are usually offered with a heavy dose of irony. But a third, “Just J-B Weld it,” is often said seriously.
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