A Brief (200,000) Year History of Adhesives

history - colosseum

The year is 2019, and at Evans Adhesive we know that our heritage of sticking things together goes way back.

But how far back might surprise you…

200,000 Years Ago

The earliest use of adhesives is discovered in central Italy when two stone flakes partially covered with birch-bark tar and a third uncovered stone from the Middle Pleistocene era were found.

70,000 Years Ago

The first use of compound adhesives is discovered in Sibudu, South Africa. Stone segments that were once inserted in axe hafts were discovered covered with an adhesive composed of plant gum and red ochre to prevent disintegrating under wet conditions.

6,000 Years Ago

Tribesmen had buried their dead together with food found in broken clay pots repaired with tree resins.

5,200 Years Ago

Pitch, which require heating of tar during its production, used to connect the stone or metal parts of spear and copper hatchet to the wooden shafts.

4,000 Years Ago

The use of bituminous cements to fasten ivory eyeballs to statues in Babylonian temples.

2,000 Years Ago

Romans began using pozzolanic cement in the construction of the Roman Colosseum and Pantheon.  Greeks began the use of slaked lime as mortar, while Egyptian paintings depict wood gluing operations and a casket made of wood and glue in tombs.

1,000 Years Ago

Mongols construct bows with laminated lemonwood and bullhorn bonded by an unknown adhesive.

500 Years Ago

World-renowned cabinet and furniture makers such as Thomas Chippendale and Duncan Phyfe began to use adhesives to hold their products together.

329 Years Ago

The development of modern adhesives began in 1690 with the founding of the first commercial glue plant in Holland. This plant produced glues from animal hides.

269 Years Ago

In 1750, the first British glue patent was issued for fish glue. The following decades of the next century witnessed the manufacture of casein glues in German and Swiss factories.

189 Years Ago

Natural rubber was first used as material for adhesives starting in 1830.

172 Years Ago

The first US postage stamps used starch-based adhesives when issued in 1847.

152 Years Ago

The first US patent (number 61,991) on dextrin (a starch derivative) adhesive was issued in 1867.

143 Years Ago

 In 1876, the first US patent (number 183,024) was issued to the Ross brothers for the production of casein glue.

106 Years Ago

The pressure-sensitive tape industry is born.   Today, sticky notes, Scotch tape, and other tapes are examples of PSA (pressure sensitive adhesives.)

108 Years Ago

By 1927, solvent-based thermoplastic rubber cements for metal to rubber bonding come into vogue.  Two World Wars in the 20th Century would also push advances in the development and production of new plastics and resins even further.

Today

Evans Adhesive is proud and determined to carry on the tradition of helping people stick things together long into the future.  To learn more about how we can help you, or to request a free adhesive sample, simply contact us.

Adhesives and High Performance

high performance

 

Achieving high performance is a crucial — and perhaps obvious — end goal in all manufacturing circumstances. No matter what product you are manufacturing, you want it to perform at the highest possible level.

The fastening method you choose when assembling your product can play a big role in the final performance of your finished product. From small items like hinges and gaskets to huge parts of complicated systems like airplane wings, adhesive can offer performance improvements that are difficult or even impossible to achieve with non-adhesive fastening methods.

Here are two ways in which using adhesives can offer peak performance

1) Adhesives allow the use of high strength, low weight materials

Traditional fastening methods like rivets, screws and welding are excellent for joining high strength, high weight materials together. In a situation that calls for the use of heavy weight metals or wood, these methods are perfectly fine.

But those materials are not available or even advisable for all applications. In aerospace engineering, for example, using these materials would be highly impractical.

Using adhesives as the fastening method in these applications allows for the use of high-performance plastics and laminates, ideal materials for a situation where both strength and weight are a premium.

2) Adhesives limit the drawbacks of other fastening options

Non-adhesive fastening options also bring certain drawbacks.

No matter the material used in your application, welding can introduce weakening. Even when taking steps to reduce the affects, some heat-induced weakening is inevitable. The same is true for riveting or screwing, which introduces stress weakening to the fastening area. Adhesives are a straightforward solution to these problems, allowing for fastening without weakening due to heat or stress.

Non-adhesive fastening methods also add weight to your finished product, but that’s not the case with adhesives. A continuous line bond in adhesive fastening eliminates weight common to other fastening methods while providing uniform adhesion across a broad surface, adding strength and increasing durability.

Evans Adhesive Invests in the Future with Scholarships

adhesive scholarships

For the adhesives industry to continue its worldwide growth, it needs the contributions of the best minds we can find. People are what makes our industry grow, and people will safeguard our shared future.

Evans Adhesive is proud to support the future of the adhesives industry by supporting the people who will make that future a reality. That’s why we’re partnering with the Adhesive and Sealant Council to offer scholarships for prospective members of our industry, the 2019 recipients of which will be announced at the ASC Spring Expo.

Offered in memory of former Evans Adhesive Technical Manager Gene Simmons, these scholarships are for students in science or business-related fields who are the relatives of active ASC members. Last year’s four recipients split $4000 in award money. This year, Evans and ASC will distribute $9000 to the future leaders and innovators in our industry.  

Investing in the future is a key factor for sustainable growth. That’s true for individuals, for businesses and even for entire industries. These scholarships represent our commitment to that growth.

Through his passion for his job and for his co-workers, Gene Simmons helped lead Evans to great success. Given in his honor, we think these scholarships are a perfect representation of our commitment to the future of adhesives.

Adhesives Improve Appearance, Durability and Reliability

adhesive durability and reliability

The internal benefits of adhesives are clear: using adhesives as your fastening solution allows for more flexibility in production and in applications and may make you more productive. But adhesives also have significant benefits for your end users as well. Products that utilize adhesives can have significantly higher quality, durability and reliability than those that use other fastening methods.

Adhesives allow for a better look and feel

A product’s quality is largely subjective, but not entirely. Consumers regularly show preference for some products over others for a variety of reasons.

Aesthetic appeal is one such reason. Using adhesives can be a significant benefit to the final appearance of your product, eliminating unwanted visible joint lines and allowing products to retain their shape without shrinkage or other material degradation. These characteristics are especially useful in clothing manufacturing.

Adhesives can also eliminate the corrosion and other material decline associated with metal fasteners or other materials used as fastening solutions. Over time, this corrosion can reduce the quality of adhesion and stain or discolor the surrounding area, leaving an aesthetically less-satisfying product in its wake.

Adhesives increase durability and reliability in every situation

In addition to looking better, products created with adhesives offer greater durability and reliability than those with mechanical fasteners.

An adhesive seal spreads and absorbs stress to a far greater degree than any other fastener. More than any other fastening method, adhesives spread and absorb stress at the point of fastening, increasing fatigue resistance and evenly distributing the load across the entire bond.

Adhesives can also create hermetic seals against moisture, smoke and fire, UV light and environmental contaminants of all types while solidly securing the various parts of your product together. Products created with adhesives, therefore, can be counted upon to perform at a high level in just about every situation, no matter the environmental factors.

Three Ways That Adhesives Increase Productivity

increase productivity by being on target like a dart

Productivity is a hallmark of the world of manufacturing. It’s true across all sectors. Making more products faster is the quickest way to increase profits.
More than any other fastening method, adhesives have the ability to increase profits and productivity. How? Here are three ways.

Adhesives increase productivity by eliminating pre-work

Adhesives have a significant advantage over welding, riveting, or stapling: more often than not, these other approaches require significant pre-work and set-up.
For instance, in many applications involving riveting or screwing one component to another, it’s necessary to pre-drill holes or take other steps in advance of the actual fastening work. Welding, too, requires extensive pre-work, including a thorough pre-treatment process to prepare the surface for a weld. This isn’t the case with adhesives, which can be simply applied to the relevant surface as needed.

Adhesives increase productivity by compressing fastening process to a single step

Even without the pre-work, other fastening process demand much more step-by-step work than a well-made, custom-designed adhesive solution. Adhesives, on the other hand, condense most or all of this preparation process into a single step: application of the adhesive.
By choosing to use an adhesive for your fastening process, you’ll be able to eliminate much of the “in-process” part of manufacturing. You will never have to wait for pre-work or mid-work to be accomplished before you can proceed. There is no process for your product to be stuck in. It is either assembled or not.

Adhesives increase productivity by reducing post-work

Finally, adhesives can also increase productivity by eliminating unnecessary follow-up work.
Welding can require significant work even after the welding process has nominally finished. It’s often necessary to grind welds for aesthetic or functional reasons and it’s not uncommon for welds to need reworking due to damage or discoloration caused by the high heat. Rivets or screws can often need finishing of their own.
In addition, any paint or labeling your product may need often can’t be applied until after other fastening processes or finished. But with adhesives, since there’s no potential for heat or other damage, you can pre-paint or label to save time after the fact.
Each of these benefits can be achieved through the deployment of a custom adhesive solution for your application. Contact Evans Adhesive today to begin learning how an adhesive solution can be developed for you.

Evans and Meridian – Looking for Great People

great people

 

Our new partnership with Meridian Adhesives Group is opening a lot of doors for Evans Adhesive, including tremendous investment and innovation advantages.  But the core of who we are isn’t changing. In fact, our new relationship with Meridian is going to continue to emphasize one of our most important values: our commitment to high-quality people.

Evans Adhesive is a high character company. We care about the people we employ and serve, not just because it’s a good business practice, but because it’s the right thing to do. Whether it is finding the best adhesive solution for your application, or honoring our commitments to quality, on-time delivery, and sustainability, we’ll go above and beyond as we have for decades.

To maintain this corporate character, we are always on the lookout for a certain kind of person, someone with a deep commitment to adhesive excellence, personal advancement, and marketplace change.  As the industry’s newest adhesive innovation platform, Meridian shares that vision, and together we’re pursuing the kind of sales and research development professionals that make both the Meridian Adhesives Group in general, and Evans Adhesive in particular, great places to work and thrive.

This shared vision means that both Evans and Meridian offer huge growth opportunities for the right person.  Working together, we all have a better chance to ride the rising tide of industry trends around the world, trends Evans is already well-positioned to meet.

As we progress into 2019, let us know if you think your personal experience, skills, and goals in the adhesive industry align with ours.  If yes, we would like to talk with you.  Contact Us today to learn more.

Why Flexibility is a Key Benefit of Adhesives

adhesive flexibility

The core function of a given adhesive is fairly straightforward: attaching one thing to another. But really, that function could be achieved by any number of devices or processes. Certainly, there are limits as to the specific attachment devices that could be used in a given situation, but broadly speaking, adhesives are not always the only option. So why choose them for your product or application? In a word: flexibility.
Flexibility is one of the key advantages an adhesive has over other fastening devices or processes and it shows up in several key ways.

Adhesives allow flexibility in design

Using adhesives as opposed to welding, bolting, stapling or other fastening options is a much more versatile, flexible approach. While most of these options have a limited range of applications, an adhesive can fulfill many if not all of the same functions. What’s more, an adhesive can be custom designed or tweak to meet certain needs, while other fastening options tend to have much more limited options.

Adhesives offer more flexible appearance options

It’s much more difficult to hide the evidence of other fastening options than it is to disguise the appearance of an adhesive. Two pieces welded together tend to be fairly conspicuous. One piece of material bolted to another generally looks just like it sounds.
But adhesives, on the other hand, offer myriad aesthetic options. Adhesives can even serve as aesthetic improvements due to their ability to fill in gaps or smooth out uneven surfaces.

Adhesives are literally the most flexible attachment solution

At risk of making a pun, it should be pointed out that the literal flexibility of adhesives is a significant advantage when compared to other fastening options. The flexibility of adhesives can make them more resistant to stress from shearing, impact, temperature changes and other factors, making them an ideal fastening solution for a wide range of applications.
Whatever your industry, consider adhesives for your daily fastening application. Contact Evans Adhesive to explore custom adhesive solutions for your industry.

How Meridian Adhesives Group Acquisition Will Help Evans Adhesives

meridian

Evans Adhesive has new capabilities in bringing high-quality adhesives to the world. Thanks to our recent acquisition by Meridian Adhesives Group, Evans will be better positioned to maintain our role as a leader in the adhesives industry.

Meridian has moved quickly in the latter half of 2018 to acquire several adhesives companies. As a whole, the company portfolio presents capabilities in high-performance specialty epoxy, polyurethane, and hybrid adhesives for the electronics, medical, construction, and infrastructure markets.

As we’ve pointed out in recent blog posts, the ability to serve multiple, diverse market sectors is crucial in the modern adhesives market. Emerging sectors around the world are driving adhesive industry growth, and responding quickly to these market trends will be key to success.

Meridian’s twin focus on hybrid adhesives and adhesive technology, in particular, aligns well with what we do well. For instance, our metallocene adhesives offer an advanced solution to numerous issues within hot melt applications, as does our versatile ReliaSeal product.

Going forward, we’re excited to continue our work developing hardworking adhesives products under the umbrella of the Meridian Adhesives Group. We’re confident our shared focus on innovation and emerging trends will be an asset to our existing and future customers.

 

Adhesive Char Solutions – The Benefits of Metallocene

char adhesive

 

Adhesive char is a pervasive issue in all industries that rely on hot melt adhesive. Char buildup in adhesive applicators can cause clogs, uneven adhesive application and ultimately production delays as the problem is addressed through maintenance.

According to AdhesiveMag.com, char buildup can show up at many stages of the application process. Adhesive char:

  • Clogs filters
  • Stops up spray nozzles
  • Clogs bead nozzles
  • Works its way onto the substrate, leaving marks, streaks and uneven surfaces
  • Eventually works its way into pumps, breaking seals and scoring and damaging the pump walls

But even before these pervasive issues arise, char can be a significant problem. Before clogging even occurs and charring is even apparent, carbon char in hose linings creates a thermal barrier. This lowers the optimal operating temperature of the adhesive, causing poor flow performance.

And unfortunately, these problems are inherent to any adhesive process that includes the use of EVA-based hot melt adhesives. No matter how regular your maintenance schedule, adhesive char will almost inevitably occur.

Metallocene solutions to adhesive char

Fortunately, metallocene-based hot melt adhesives offer key advantages to traditional EVA-based hot melt adhesives:

  • Char-free operation: Thanks to its chemical competition, a metallocene-based hot melt adhesive is not subject to the carbon buildup, gelling or other changes common to other adhesives throughout extended high-temperature storage and use.
  • Improved mileage: Metallocene-based adhesives have a lower density than traditional EVA-based adhesives and can be applied at lower flow rates. As a result, metallocene-based adhesives often yield up to a 40% reduction in adhesive use.
  • Precision application: The lower viscosity of metallocene-based adhesives during their pot life means operators have more precise control over flow, bead size, and bead quality.
  • Diverse performance: Metallocene-based adhesive outperforms EVA-based adhesives in both high- and low-temperature performance, achieving superior bonding strength in both high temperature and freezing cold. This superior performance also applies to package stocks. Metallocene-based hot melts pair well with a wide variety of coated and uncoated paper packaging and corrugated stock. They are also ideal adhesives for heavy ink surfaces.

Affordable solutions to adhesive char

On top of its functional benefits, metallocene-based hot melt offers significant financial benefits as well. In many applications, a metallocene-based adhesive can be a more affordable choice than a traditional EVA-based adhesive.

And given the wide range of options offered by Evans Adhesive, there’s likely a perfect metallocene-based adhesive for your application.

Contact Evans Adhesive for more information on how a metallocene-based adhesive can be customized to meet your needs, and see our informational download No More Char here for more solutions to adhesive char.

How the Right Packaging Hot Melt Can Save You Time and Money

ReliaSeal

 

Packaging hot melt adhesive is a key product category in the adhesive industry today. Many case, carton and tray sealing applications depend on hot melt adhesive to make their operations run.

But not all packaging adhesives can make the grade. The wrong choice can result in thousands of dollars worth of lost money and time due to costly repairs.

ReliaSeal packaging hot melt could be the right choice for you

If your company uses a traditional EVA-based adhesive in its hot melt application, chances are your applicator will develop char over time, even with regular maintenance. When that char buildup goes too far, adhesive lines will become clogged, resulting in unsealed packages, potential damage to the contents of those package in their final use, and significant downtime as you repair the char damage.

However, Evans Adhesive has an alternative. Our ReliaSeal7359 is a metallocene-based hot melt adhesive that eliminates char buildup in applicators. The low-density ReliaSeal also means your machinery operators can use less adhesive per run, potentially up to 40% less for each job.

Consider making the switch to ReliaSeal for your packaging hot melt application.  To learn more, click here.

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