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The article discusses a treasure hunting experience in which the author found a beautiful Celtic silver unit coin in a ploughed Norfolk field. The author and their friend had a successful weekend, finding hammered coins, Roman bits and pieces, and a Roman fibula brooch. The author also mentions a knife found by a friend in his garden near Earls Colne, Essex, which is believed to date back to the 1700s. The author invites readers to provide more information about the knife. [Extracted from the article]

When conducting management classes throughout North America and Australia, I am often asked how the 'average shop' performs in critical areas. We rarely discuss averages but prefer to point our [...]

Recently, I was invited to visit ND Industries in Clawson, MI, to see their range of threadlocking and sealing solutions. ND is perhaps best known for its pre-applied fastener locking [...]

Question: Should I use a cyanoacrylate superglue or one of those new one-part polyurethane glues for household repairs and assembly projects? Answer: Both of these types of adhesives have the [...]

Question: I am an avid user of epoxy sticks, and I have always wondered whether silicone adhesives and sealants in a similar form are available that can be mixed and [...]

Question: What tips can you provide for bonding plastics and composites with adhesives? Answer: Adhesives are often a better way to assemble plastics than by using mechanical assembly with fasteners. [...]

Adhesives and coatings cured by ultraviolet (UV) or visible light have become valuable tools in modem-day assembly operations, particularly in high-technology industries such as electronics and medical devices. Most UV [...]

Adhesives offer several benefits for joining materials. They distribute loads across the entire joint area. They show excellent fatigue properties. They attenuate vibrations and sound. They often fulfill a dual [...]

November 17, 2010, was a momentous and historic day for the adhesives industry and, in particular, for Harry Coover, Ph.D., inventor of cyanoacrylates, better known as superglues. Coover was presented [...]

Question: We are using a pressure-sensitive adhesive for making tapes, but are somewhat confused about the different properties such as tack, peel adhesion and shear strength. Can you provide an [...]

Co-founder of Loctite Corp.--Inventor, entrepreneur and freedom advocate Editor's note: This article is the second in a series of articles profiling legends in our industry. See 'SuperGlue--Superman,' July/August, 2004, for [...]

I was privileged to attend the annual induction ceremony for the National Inventors Hall of Fame[TM] in Akron, OH, on May 1. This prestigious black-tie affair honored 20 inventors who [...]

QUESTION: What are the best products for filling the seams after assembling acrylic countertops? ANSWER: Reactive acrylic adhesives are the product of choice for this application; they cure rapidly with [...]

QUESTION: I see many so-called 'five-minute' epoxy adhesives (and sometimes ones with even shorter cure times). Are these adhesives truly strong and durable? ANSWER: These adhesives are used quite widely [...]

QUESTION: The adhesives we use are now available from more than one supplier. Flow can we feel comfortable when changing to a new supplier? ANSWER: There must be a reason [...]

QUESTION: We have been advised to use an organosilane adhesion promoter in an acrylic adhesive to bond glass to metal. How do organosilanes act chemically in this application? How much [...]

Most castings and powdered metal parts have porosity. Porosity provides a leak path into or out of castings. In powdered metal parts, porosity can cause severe plating problems. Vacuum impregnation [...]

In 1994, we should see the South End office vacancy rate -- currently at 28 percent -- rise even higher to 30 percent. On the other hand, we may see [...]

QUESTION: I am looking for an adhesive that can be applied to rivets inserted into thin-walled, stainless steel sheets (a patch) that will be exposed to exhaust fumes from a [...]

QUESTION: We bond sheet molding compound (SMC) with a polyurethane adhesive, then test the bonded joint by lap shear or cross peel. With one particular substrate, we get 100% substrate [...]

I enjoyed the Custer/RIC article in your December issue. It's understandable that no .44 RIC cases were found. A battalion commander had no time to fire--much less reload--his pistol. Richard [...]

[ILLUSTRATION OMITTED] QUESTION: I am bonding EPDM to acrylic-painted ABS, and I'd like to know if there are adhesives for this particular substrate combination. I'm looking for an alternative to [...]

[ILLUSTRATION OMITTED] QUESTION: We are assembling and sealing some aluminum parts using an RTV silicone and the adhesion values are inconsistent. Can you offer some suggestions to remedy the problem? [...]

QUESTION: Can you advise on the best non-toxic, water-based adhesive for leather, rubber and fabric shoe soles, and folding of shoe uppers and linings? ANSWER: Traditionally, solvent-based polychloroprene adhesives were [...]

QUESTION: We make consumer products out of polystyrene and ABS, and have been bonding them using solvent welding for many years. We would, however, like to get rid of the [...]

QUESTION: We make elastomeric construction type sealants and are looking at entering the high-performance industrial and automotive markets. Could you give us an overview of elastomeric sealants in this market, [...]

QUESTION: We tried using UV adhesives to increase our productivity a few years go and were disappointed with them, mainly because there were areas on our parts that didn't get [...]

Do you have an adhesives-related question? Send it to Dr. David Dunn, a technical consultant. His broad knowledge of the industry has helped hundreds of people. He may just have [...]

Q We manufacture electronic water meters out of high-density polyethylene and need to fill a 1/2-inch-deep groove with a sealant. The meter is used outdoors, and the joint must be [...]

The article focuses on Dave Dunn has retired as a columnist following 20 years of monthly contributions.

The article discusses management techniques on how to establish benchmarks in determining job costs and increase profit in an average automobile repair shop in the U.S. According to the author, most repair shops fail to establish the importance of job costing and business analysis which are essential in proper shop management. Moreover, a discussion is also provided on how to compute for the labor gross, parts and material, and sublet profits as well as administrative labor performance.

The article provides an overview of Clawson, Michigan-based ND Industries' threadlocking and sealing solutions. ND founder Richard B. Wallace explains the motivation behind the development of the company's Vibra-Tite threadlocking and sealing product. He describes his company's partnership with engineers from the University of Detroit to develop a formula that incorporates a mixture of hard and soft acrylic polymers in a solvent.

In this article, the author presents his views on developments in bookbinding adhesives. Topics discussed include information on side adhesive that helps to keep the cover closed and hides the roughened binding edge of the pages from view; types of book binding adhesives involving Polyvinyl acetate (PVA) emulsions; and information on reactive hot-melt urethanes that give instant fixture and then cure to give crosslinked adhesives.

The article presents a question and answer related to difference between thermoplastic and thermoset adhesives.

Discusses the importance of a proper estimate in evaluating the costs of repairing damages to automobiles. Blueprint for estimating damages; Partial listing of things that need not be considered in estimating; Quarter panel items unimportant for estimating; Need to use databases that are up-to-date and complete.

Focuses on strategies recommended for automobile repair services for more accurate detailing of collision damage for automobile insurance companies. Need to ask for physical damage quotations; Technique to overcome insurance personnel's resistance to quotation supplements; Importance of monitoring insurance receivables and payments.

We make acrylic adhesives and wish to make them suitable for very high-temperature use. [Extracted from the article]

The article discusses Dave Dunn, former vice president and director of Loctite Corp. on his views of making anaerobic adhesives and trying to minimize costs from different suppliers. Topics discussed include manufacturing of own monomers by using of free radical stabilizers and metal chelators; including common free radical stabilizers are hydroquinone or methoxy hydroquinone (MEHQ); and tracing of iron or copper in the monomers and adding small amount of soluble chelator.

The article discusses the adhesives and sealants that fill irregular gaps and curing and the shrinking on curing.

The article presents an answer to a question related to the safe disposal of sealants and adhesives in factories.

The article provides an answer to a question about the use of an adhesive to seal pinhole leaks in an old fire sprinkler system in a large apartment block.

The article provides an answer to the question on the latest developments as of February 2019 in the bonding of polytetrafluoroethylene (PTFE) to itself or to metals.

The article offers information on the use of adhesives for bonding plastic plumbing pipes. Topics discussed include use of solvent cements for plumbing applications; major issue with solvent cements such as volatile organic compound content; and wide range of solvent cements on the market. It also mention about the limited applications of the methyl methacrylate adhesives.

The article presents answers to queries on acrylic adhesives and ways to increase thermal resistance of anaerobic adhesives.

The article answers question related to the use of silicone adhesives and sealants, and their availability as epoxy sticks.