J-B Weld

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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 that produces epoxy products. The home office is based in Sulphur Springs, Texas (USA). Also, J-B WELD is the name of their flagship product: a specialized, high-temperature epoxy adhesive for use in bonding materials together (see below: J-B WELD epoxy). The company is famous for its advertisements showing engine block repair with J-B WELD.[1]

History[edit]

The company had its beginnings in the mid-1960s.[2] Sam Bonham, at the time running a machine shop, discovered a way to create what he called a "tougher than steel" epoxy.[2] In 1968, Sam's future wife Mary persuaded him to sell his invention and found the J-B WELD Company. Initially, they sold to automotive shops in Texas.[2] The company now does business in all states in the United States, and in 27 other countries.[2]

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."[2] 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.[2]

Products[edit]

JB Weld offers the following products as of 6/1/2014

Wood Repair and Restore Products
Wood Weld
Wood Weld Professional Size W/ Static Mixer
Wood Restore Liquid Hardener
Wood Restore Premium Liquid Epoxy Wood
Wood Restore Premium Epoxy Putty Kits - 3 Sizes
Wood Restore Repair Putty ( Similar to car Body Filler )- 2 Sizes
KwikWood Epoxy Putty Stick - 2 sizes
Wood Restore Products do not shrink or expand.

Syringes
ClearWeld
KwikWeld
PlasticWeld
Plastic Bonder

JB Weld Main Line
JB Weld
KwikWeld
SteelStick
WaterWeld
PlasticWeld
MarineWeld
High Heat Stick
Perm-O-Seal
Perma-Lock Blue and Red Threadlockers


Known Distributors

Cincinnati Dowel & Wood
Cindoco Wood Products
Ace Hardware
Auto Zone
Advance Auto Parts
Blain's Farm & Fleet
Bumper to Bumper Auto Parts
CARQUEST Auto Parts
Canadian Tire
Do It Best
Fastenal
Federated Auto Parts
Fred's
Fred Meyer
Grainger
The Home Depot
K-Mart
Lowe's
Meijers
Menards
Mills Fleet Farm
NAPA
Northern Tool & Equipment
O'Reilly Auto Parts
Parts Plus
PepBoys
Pronto Auto Parts
RONA
Tractor Supply
True Value
Uni-Select
Wal-mart
Wal-mart - Canada

Product: JB-WELD
Type: 2-part epoxy
Surfaces: Metal, wood, fiberglass, PVC, ABS, concrete, ceramic, glass, and fabric[3][4]
Avoid: Clean slick/oily surfaces; do not use alcohol[3]
Temperature (max.): 600 °F (316 °C) at 10 minutes[3]
Temperature (min.): −55 °C (−67 °F)[5]
Set time: 4–6 hours[3]
Harden time: 15 hours, but sooner under heat lamp or incandescent light bulb after 6 hours[3]
Preparation: Sanding, acetone, lacquer thinner, or soap (DO NOT use alcohol or petroleum solvents)[5]
Health issues: Avoid contact with eyes or with skin (wash with soap and water); bonds with skin; non-toxic if ingested[4][5]
Removal: When hardened, by filing or rasping[3]
Strength (psi/MPa): Tensile strength: 3,960 psi or 27.3 MPa,

Adhesion: 1,800 psi or 12 MPa,
Flex strength: 7,320 psi or 50.5 MPa, and
Tensile lap shear: 1,040 psi or 7.2 MPa[4]

Shrinkage: 0.0%[4]
Product: JB-KWIK
Type 2-part epoxy
Surfaces: Metal, wood, fiberglass, PVC, ABS, concrete, ceramic, glass, fabric[3][4]
Avoid: Slick, oily surfaces[3]
Temperature (max.): 300 °F (149 °C)[3]
Set time: 4 minutes[3]
Harden time: 4 hours[3]
Health issues: Avoid contact with eyes or with skin (wash with soap and water); non-toxic if ingested[4][5]
Removal: When hardened, by filing or rasping[3]
Strength (psi/MPa): Tensile strength: 2,100 psi or 14 MPa,

Adhesion: 1,800 psi or 12 MPa,
Flex strength: 7,320 psi or 50.5 MPa, and
Tensile lap shear: 1,040 psi or 7.2 MPa[6]

Shrinkage: 0.0%[6]

The J-B Weld Company provides several different products: J-B WELD (original 2-tube epoxy), J-B KWIK (4-hour epoxy), J-B STIK (epoxy putty), WATERWELD (underwater adhesive/filler), and other products.[7]

J-B WELD epoxy[edit]

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, wood, ceramic, or glass,[3] plus marble, PVC, ABS, concrete, fiberglass, wood, fabric, or paper.[4] Avoid using alcohol to clean surfaces.[5] J-B WELD is waterproof, petroleum/chemical-resistant (when hardened), acid-resistant, plus resists shock, vibration, and extreme temperature fluctuations.[4] J-B WELD can withstand a constant temperature of 500 °F (260 °C), and the maximum temperature threshold is approximately 600 °F (316 °C) for 10 minutes.[5] J-B WELD can also be used inside a microwave oven, exposed to microwave radiation instead of infrared radiation (heat).[3]

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.[3] 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,[3] 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.[1][3] After about 20 minutes the mixture begins to thicken into a putty that can be shaped, which becomes hard after 4–6 hours.[3] 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.[3]

J-B WELD works faster when used in above 50 °F (10 °C).[3] 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.[1][3] 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.[4] When fully cured, J-B WELD can be drilled, formed, ground, tapped, machined, sanded, and painted.[4] However, until hardened, it could sag or drip when applied.[4]

J-B KWIK epoxy[edit]

The product J-B KWIK is a two-part epoxy adhesive (or filler) that can withstand medium-temperature environments (up to 300 °F or 149 °C).[6]

Because J-B KWIK cures quickly it is not as strong or as heat-resistant as the original J-B WELD.[1][6] However, J-B KWIK has the same adhesion (1,800 psi or 12 MPa) as J-B WELD, and also does not shrink when hardening.[6]

J-B KWIK can be used to nit--bond surfaces made from any combination of iron, steel, copper, aluminum, brass, bronze, pewter,[6] plus porcelain, wood, ceramic, glass, marble, PVC, ABS, concrete, fiberglass, wood, fabric, or paper.[4][6] J-B KWIK is waterproof, petroleum/chemical-resistant (when cured), acid-resistant, plus resists shock, vibration, and extreme temperature fluctuations.[4]

Notes[edit]

  1. ^ a b c d "Radiator Repair: Stock Car Racing magazine", Sleep Gomez, Automotive.com, 2009, webpage: StockcarR-411.
  2. ^ a b c d e f "About J-B WELD Company", JBWELD.net, 2004, webpage: JBWELD-about.
  3. ^ a b c d e f g h i j k l m n o p q r s t u "J-B Usage Instructions", JBWELD.net, 2004, webpage: JBWELD-use.
  4. ^ a b c d e f g h i j k l m "Repair Products UK Ltd: Metal Glue - J-B WELD", Repair Products UK Ltd, 2009, webpage: RProducts-42.
  5. ^ a b c d e f "Frequently Asked Questions", JBWELD.net, 2004, webpage: JBWELD-faq.
  6. ^ a b c d e f g "J-B KWIK Product Information", JBWELD.net, 2009, webpage: JBKWIK.
  7. ^ "J-B Weld Company - Products Overview", JBWELD.net, 2004, webpage: JBWELD-products.

References[edit]

  • "About J-B WELD Company", J-B WELD Company, JBWELD.net, 2004, webpage: JBWELD-about.

External links[edit]