How Adhesive Researchers are Suddenly “Seeing the Light”

light curing

Two new articles posted this month on the Adhesive and Sealant Council’s website shine the proverbial spotlight on how advancements in light curing adhesive technologies and long-wave UV cross-linking are offering promises of faster manufacturing cycle times and stronger bonds.

In their post Improvements in Light Curing Adhesive Technology Speed Up Manufacturing Cycle Times:

  • They share how a large number of industries reliant on one or two component curing processes are responding to new developments in the chemistry behind light-curing. 
  • These developments are showing promise, reducing curing times which used to take hours if not a full day down to as low as a few seconds. 
  • To learn more about how the use of high-intensity LED curing lamps can increase the speed of the adhesive cycle, click here.

In their post Researchers Study on Long-Wave UV ‘Cross-Linking’ for Stronger Adhesive Bonds Promising:

  • They describe how new research by a group of Canadian composite materials researchers and chemists points out that exposing an adhesive to long-wave UV light or heat results in a strong bond that is both impact and corrosion resistant, even after only a small amount of exposure. 
  • To learn more about how cross-linking could be the answer to creating stronger bonds between plastics and synthetic fibers and other materials, click here.

Are Your Adhesive Solutions Advancing Faster Enough?

At Evans Adhesive, we are built to provide custom solutions around customer needs. Whether it’s a new adhesive and sealant formulation for an existing application, or bonding solutions for brand new applications, our research and production teams stand ready to work closely with you to customize a solution that meets your exacting performance requirements. To learn more, or to request a free sample, give us a call or Contact Us today.

Four Quick Things to Know About Case and Carton Sealing

1) Hot melt is the most popular bonding adhesive when it comes to case and carton sealing.  

2) It’s about sealing the flaps.

Application of the adhesive is typically an end of the line process and involves the adhesive being applied at an elevated temperature to open flaps, which are then placed in contact with the remaining flaps and compressed to form the final bond.  Often times the adhesive is applied to a minor flap, which is then bonded to a major flap.

3) In your environment, pay attention to the following factors:

  • Air and surface (substrate) temperatures
  • Application speeds (ranging from beads for medium speeds, to dots applications for precise, high-speed)
  • Carton sizes (big or small)
  • Set times (can be a function of amount of adhesive used)
  • Glue patterns (length, width, and compression type)

4) How do you know if you’ve done it right?

In most cases, if you try and open the carton and the corrugated flap shreds apart, you’re not creating the optimal experience for recipient.  Most people prefer a box or carton that maintains its integrity during shipping and receiving, but also easily opens when the flaps are pulled apart.  But if you need a seal that’s harder to open than Fort Knox, by all means go for it!

Are you in need of case and carton adhesives?

At Evans Adhesive, we are built to provide custom solutions around customer needs. Whether it’s a new adhesive and sealant formulation for an existing application, or bonding solutions for brand new applications, our research and production teams stand ready to work closely with you to customize a solution that meets your exacting performance requirements. To learn more, or to request a free sample, give us a call or Contact Us today.

Gypsum Board Market Expected to See 11.4% CAGR Through 2025

gypsum board market growth

According to Grand View Research, the global gypsum board market exited 2018 worth $37.25 billion dollars in sales, with an expected compound annual growth rate of 11.4% through 2025.

Growth factors for gypsum board cited were:

  • The rising demand from residential real estate sectors

  • Increasing consumer spending capacity for construction materials

  • Growing population and rapid industrialization

  • Surged demand for better infrastructure facilities in residential as well as commercial and institutional sectors

  • Increased spending by governments and private real estate firms in residential and urban construction

For those who are less familiar with gypsum boards, the most common types are:

  • Wallboard – which accounts for more than 50% of overall volume of gypsum boards manufactured in the world. It is used in making interior walls, surfacing, and partitions of shops, offices, and malls. It is also used as a speedier alternative to traditional lath and plaster.

  • Ceiling board – which are suitable for the applications wherein normal fire, structural, and acoustic levels are specified.

  • Pre-decorated boards – which are expected to witness significant growth owing to increasing demand in regions such as the U.S., U.K. and Germany.

Other types include plaster base, sheathing, and lath which are gaining traction based on their ability to enhance aesthetic appeal of the architectural designs.

Popular applications for gypsum board include:

  • Pre-engineered Metal Building

  • Residential

  • Industrial

  • Commercial

  • Institutional

To see a summary of this report and to learn more, click here.

At Evans Adhesive

We are the market leader for edge glue for paper and fiberglass faced drywall and wallboard.  Our high-quality, reliable formulations ensure consistent edge bonding for all types of needs, and our products are designed to run on the newest high-speed lines. We offer standard grades along with our line of mold resistance adhesives for the most complete lineup in the industry.  To learn more, or order a free sample, Contact Us today.

Seven Things You Should Know About Dextrin Adhesives

boxes glued with dextrin

Let’s start with who loves dextrin adhesives.  The packaging industry for one.   That’s because dextrin is especially good at bonding paper materials together.  Think no further than that popular corrugated box that Amazon just shipped to your home or office and you get the picture.  Now, throw in anyone who manufactures tapes, bottle labels, envelopes and other paperboard cartons and you begin to see the wide-ranging impact that dextrin adhesives have in the marketplace.

Where does dextrin come from?

In a word “starch”, that natural polymer derived from plants like corn, wheat, rice, potatoes, etc.   When you process that starch a bit further than normal you end up with dextrin.

Why is it so popular?

Because starch is derived from plentiful, natural ingredients, it remains among the least expensive packaging adhesives on the market today.  In addition, those natural ingredients make it both non-toxic and biodegradable.  All of these bring business benefits that are hard to pass up.

Is it affected by temperature and curing time?

Soluble in water, dextrin adhesives can be applied hot or cold and they offer excellent heat resistance.  In addition, dextrin’s slow curing rate offers real advantages for any application that requires a longer set time or assembly time.

How is dextrin adhesive made?

The most common method for creating dextrin is to dry-roast cornstarch in an acid catalyst.  Why cornstarch?  Mostly because of its low cost and ready availability versus other starches.  But other starches can be used as well.

What are the most common types?

Dextrin comes in three types – yellow (low molecular weight), white (intermediate molecular weight), and British gums (high molecular weight).  Having different options for molecular weight allows you to customize around the specific viscosity and adhesion strength requirements your application needs.

Are you in need of a specially formulated dextrin adhesive?

At Evans Adhesive, we are built to provide custom solutions around customer needs. Whether it’s a new adhesive and sealant formulation for an existing application, or bonding solutions for brand new applications, our research and production teams stand ready to work closely with you to customize a solution that meets your exacting performance requirements. To learn more, or to request a free sample, give us a call or Contact Us today.

McKinsey Takes a Look at the Future of Packaging

Future of Packaging

McKinsey and Co. recently put out a series of online articles that explore the future of packaging.  We thought we’d highlight a couple of them for you here today.

McKinsey Interviews WestRock CEO on the Future of Packaging

McKinsey’s Nick Santhanam recently spoke with WestRock CEO Steve Voorhees to gain his perspective on the packaging sector and the road ahead.

In the interview, Voorhees reflects on the three primary roles that packaging serves (protecting, promoting, and performing) and shares his belief that the biggest changes have come in the form of performance, which will continue to be the case over the next five to ten years.

Why has performance led the pack?

  • For one, he credits sustainability (like paper-based packaging) because it’s made from renewable and recyclable resources that consumers prefer.

  • For another, it relates to new technologies embedded in packaging that allow it to do more than just protect products. For instance, the introduction of innovations like the “19 Crimes” wine bottle labels, which animate when used in combination with a smart phone app.

  • And finally, he credits ongoing R&D efforts that are generating new ways to replace plastic with paper.

To read the full McKinsey interview, including the role that governments and M&A will have on the future of packaging, click here.

Smart Bottles and Edible Boxes?

And in another great packaging article from McKinsey, David Feber, Daniel Nordigården, and Nick Santhanam describe what packaging could look like in 2030.

  • Milk jugs with sensors?

  • Personalized wine bottles?

  • Edible boxes and bags?

These are just a few examples of The Next Normal in packaging. To see the full McKinsey article, click here.

About Evans

At Evans Adhesive, we too believe in innovation. Whether its new adhesive and sealant formulations for existing applications, or bonding solutions for brand new applications, our research and production teams stand ready to work closely with you to customize a solution that meets your exacting performance requirements. To learn more, or to request a free sample, give us a call or Contact Us today.

Seven Things to Consider When Determining Bonding Requirements

bonding

When considering bonding and sealant options, answering a few simple questions can help guide you to the right solution.

1.  What Are You Joining Together?

Is it a sub-assembly or a finished part, and is disassembly a consideration?  Also, does it require bonding (e.g. adhesive) or joint filling (e.g. sealant)?

2. Substrates?

What substrates are you connecting, and are those materials rigid, flexible, smooth, rough, non-porous, or treated?  And if the substrate turns out to be treated, with what?  Finally, does your adhesive need to be stronger than the substrate itself?

3. Design Joint?

Is your design joint going to be under high stress, dynamic load, or static load?

4. Application?

Will you be applying your adhesive or sealant manually, or assisted by either a machine and/or a fully automated process?

5. Curing?

How do you intend to cure your adhesive or sealant?  For example, will it be by heat, or moisture, or UV light, or electron beam light, etc.?  Also, what is the service temperature range that will be needed when applying your adhesive or sealant (whether continuously or intermittent)?

6. Resistance?

Is there anything your adhesive or sealant needs to resist, like moisture, or immersion, or weathering, or sunlight, and more?

7. Standards?

And finally, do you need to comply with standards like UL, US FDA, etc.?

Need Help?

At Evans’, we know that adhesives may not be your primary business, but your primary business can’t function without it.  That’s why our number one goal is to serve you well, with products that work and service levels that exceed your expectations.

If you are in need of an adhesive product that works reliably, can be configured into your product line, arrives at your facility on time, and meets your budget requirements, then call or Contact Us today to connect with one of our solutions experts.

The Adhesive Research, Product Samples, and Data Sheets You Need to Succeed

Research

The last thing you need to be worried about is if your adhesive is doing its job. Worrying about adhesives is our job, and we’ve been solving adhesive worries for more than 110 years.

What do you need to stick together?

Let us know, and our Technical Staff will figure out the right formulation. Our lab chemists are experts at solving glue challenges.

The Evans Adhesive Lab Capabilities include:

  • Qualitative Analysis by FTIR

  • Packaging Hot Melts – characterization of physical properties such as viscosity, softening point, open and set speeds, Peel and Sheer Failure Temperatures, IOPP cleave test, and ultra-cold temperature bonds.

  • PSA Hot Melts – characterization of physical properties such as viscosity, softening point, loop tack, rolling ball tack, peel testing, sheer failure temperature (SAFT), and accelerated heat aging.

  • Water-based – characterization of physical properties such as viscosity, pH, total solids, high temperature solids, inorganic content, dry film characteristics, speed of set comparisons, and dry times.

Our experienced team includes research chemists, chemical engineers, quality control experts, and PhD’s in organic chemistry – all of them with years of experience creating adhesive formulations for all types of industrial applications, clients, and products.

Everything you need to get started is just one click away.

  • Need a free product sample? Click here to submit your request.

  • Looking for Safety Data Sheets? We have hundreds of them.  Click here to request the one you need.

  • Want to request a Product Data Sheet? Click here to submit your form.

  • Ready to talk to one of our experts? Click here and someone from our team will contact you right away.

But don’t just take our word for it. 

Here is what one of our customers had to say.

“Our company has worked with the wonderful people from Evans for many years.  Recently we tasked Evans with providing the technical expertise to supply our company with an adhesive that would perform with a custom manufactured liner, unique to the label industry.  We worked closely together to create a pilot test program that provided the technical resources we required to validate our label composite.  In today’s commodity world, Evans has true industry leaders that standout and guarantee success for the unique specialty coater.”

— William Cochran President, Specialty Coating Company

Our commitment to you.

As our President & CEO Rusty Thompson explains, “Our #1 goal is to meet all your needs, with the right products and service levels that exceed your expectations.  By placing your trust in us, you can be sure you’ll get a superior product for your application. Plus, you can rest easy, knowing your orders will arrive on time and ready for immediate use.”

What are Pressure-Sensitive Adhesives?

pressure-sensitive adhesives

Industrial adhesives are typically organized by either their reactiveness properties (whether it chemically reacts in order to harden), or by its origin (natural or synthetic.)

In the reactiveness category, one of the world’s most popular bonding solutions is the pressure sensitive adhesive or PSA.

So, what is a Pressure-Sensitive Adhesive?

Pressure-sensitive adhesives are designed to form a bond by the application of light “pressure ” to marry the PSA with whatever needs to be adhered together.

Why use a Pressure Sensitive Adhesive?

For the right applications, PSAs offer a unique balance between what we call “flow” and what we call “resistance to flow.”  For example, as the bond initially forms because the adhesive is soft enough to flow (i.e., “wet”), it then strengthens because the PSA is hard enough to “resist flow” when stress is applied to the bond.

Once the PSA and the elements to be adhered are in close proximity, molecular interactions become involved in the bond, contributing significantly to its ultimate strength.

Pressure-Sensitive Adhesive Applications

PSAs are typically designed for either permanent or removable applications.

Examples of some permanent applications include:

  • Safety labels for power equipment

  • Foil tape for HVAC duct work

  • Automotive interior trim assembly

  • Sound/vibration damping films

Examples of some removable adhesives applications include:

  • Surface protection films

  • Masking tapes

  • Bookmark and note papers

  • Barcodes labels

  • Price marking labels

  • Promotional graphics materials

  • Skin contact (e.g. wound care dressings, EKG electrodes, athletic tape, etc.)

Pressure-Sensitive Adhesive Manufacturing Process

Most PSAs are manufactured with either a liquid carrier or in 100% solid form.

  • Articles are made from liquid PSAs by coating the adhesive and drying off the solvent or water carrier. They may be further heated to initiate a cross-linking reaction and increase molecular weight.

  • 100% solid PSAs may be low viscosity polymers that are coated and then reacted with radiation to increase molecular weight and form the adhesive, or they may be high viscosity materials that are heated to reduce viscosity enough to allow coating, and then cooled to their final form.

  • Major raw material for PSA’s are acrylate-based polymers.

Are you looking for a pressure-sensitive adhesive for your business?

To Contact Evans Adhesive or request a free sample, simply click here.

Advantages of Industrial Hot Melt Adhesives

Box of Hot Melt Glue

 

If your daily conversations include phrases like “open time”, “set time”, “tack”, and “surface energy”, your job probably involves some form of hot melt adhesive, or HMA.

Popular among hobbyists for use in crafting projects (think of those glue sticks used in glue guns), it is even more popular in industrial applications as an alternative to water-based adhesives.   

These advantages include:

  • Reduction or elimination of volatile organic compounds

  • Elimination of the drying or curing step

  • Long shelf life

  • Disposable without specific precautions

  • No loss of thickness during solidification

  • Lower shipping costs and greater transportation distances

Flexibility

Hot melt adhesives offer increased flexibility in areas like “open time”, where the working time it takes to make a bond can range from just seconds for fast-setting HMAs, to infinity for pressure-sensitive adhesives (PSAs).

Versatility

Hot melt adhesives offer versatility in the array of different substrates that they can bond with, including rubbers, ceramics, metals, paper, plastics, glass and wood.

Variety

Industrial HMAs come in a variety of different types, including larger sticks and glue guns with higher melting rates, as well as in granular or power hot melt blocks for bulk melt processors.

Applicability

Here are just a few of the many examples where different applications and industries take advantage of the benefits of HMAs:

  • Corrugated boxes and paperboard cartons in the packaging industry

  • Disposable diapers in the hygiene industry

  • Spine gluing in the bookbinding industry

  • Affixed parts and wires in the electronics industry

  • Product assembly and lamination in the woodworking industry

Of course, hot melt adhesives may not always be the best option.  These can include use on substrates that are sensitive to higher temperatures, as well as end-products that can be exposed to higher temperatures, chemicals, or weather conditions where an HMA may offer less bond strength or resistance.

For these reasons and others, Evans proudly offers packaging hot melt adhesives, pressure sensitive hot melt adhesives, and water-based adhesives to our industrial customers.  Whatever your requirements call for, Evans manufacturing and research teams are here to help.

To Learn More

  • Click here to learn more about our packaging hot melt adhesives

  • Click here to learn more about our pressure sensitive hot melt adhesives

  • Click here to learn more about our water-based adhesives

  • Click here to contact us and/or request a free sample

Look for Continued Growth in Industrial Adhesives Markets

Growth

According to Adhesive & Sealants Industry (ASI), a recent research study by Technavio projects that the global industrial adhesives market will:

  • Add over $13.9 billion to its value from 2019-2023

  • Have a compound annual growth rate (CAGR) of almost 5%.

In addition, according to Yahoo Finance and Global Newswire:

  • Water-based adhesives are the leading segment in the Global PSA Market at 1.6 million metric tons in 2019

  • It is forecast to register a CAGR of 5% during 2019 to 2025 analysis period and will reach 2.1 million metric tons by 2025.

The same article also reports that for Pressure Sensitive Adhesive (PSA’s):

  • Asia-Pacific is the largest region for the global pressure sensitive adhesives market

  • It is estimated at 1.6 million metric tons in 2019 and the region is forecast to lead the growth of the global PSA market at a 2019 to 2025 CAGR of 6.1%.

And back to Adhesive and Sealants, the global waterborne epoxy resins market:

  • Was valued at nearly $2.8 billion in 2018, according to a report from Coherent Market Insights, and is projected to exhibit a CAGR of 7.7% from 2019-2027 (in terms of revenue).

  • Increasing demand is coming from end-use industries such as construction, automotive, textiles, and packaging are fueling growth for the global waterborne epoxy resins market.

Net-net, these signs point to a growing adhesives market due to their superior product and operational performance in industrial applications when compared with conventional mechanical fastening methods.

To learn more about what adhesives might be right for your application, or to request a free sample, Contact Us today.

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