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Sika Introduces New High Grab Adhesive for Rapid Handling of Bonded Components

Posted By ASC, Thursday, January 18, 2018

Sikaflex 545, a new addition to the Sika Group’s product range, offers new advances in adhesive technology. The adhesive is a silane terminated polymer assembly system that can be applied with a handgun. According to the company, it will grab immediately, retaining its bond under a weight of 4.5kg immediately after application. In less than one minute, the mass it can tolerate increases to 18kg.

 

Sikaflex 545 is expected to be useful in many industrial contexts since it is able to bond a wide range of substrates including PVC, aluminum, glass, timber, ceramics and galvanized steel. Sika Group believes that it will be adopted in the production of furniture and home appliances as well as industrial appliances and HVAC systems. The low odor, low emissions adhesive requires no surface pre-treatment, has the advantage of elasticity, and can be overpainted. 

 

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Strong Epoxy Gives Round the World Yacht Racers a Second Chance

Posted By ASC, Tuesday, January 16, 2018

When the Dutch AkzoNobel Ocean Race Team suffered a damaged main mast owing to a gybe in high winds, it may have seemed like their round the world race attempt was doomed. The mainsail’s track was ripped free of the mast, and the force of the wind also broke the carbon battens that support the sail. But the team came armed with a remedy for their predicament – super-strong epoxy adhesive.

 

In stormy weather, sailing with only headsails, the team got to work, using the epoxy to reattach the mast track. The shore crew of technical experts says that the yacht will be able to use the mainsail at full hoist once again. That’s good news, since the team currently holds fourth place, and will still be in with a chance of finishing in a strong position thanks to ingenuity and a little epoxy.

 

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3M’s Tape Products Address NVH (Noise, Volume and Harshness) Reduction

Posted By ASC, Thursday, January 11, 2018

The automotive industry has attempted a variety of strategies for reducing Noise, Vibration, and Harshness (NVH). To date, strategies ranging from altered component design to the incorporation of stiffening ribs specifically to reduce vibration have been incorporated. One of the key issues when combatting noise is resonance and when layers of materials all contribute to the overall effect, the resulting noise can be unacceptable.


Adhesive acoustic tapes have proven to be an effective and economical solution. Acoustic tape manufacturer, 3M, says that its sound damping pads not only absorb resonant sound frequencies but help to isolate vibrating panels, acting as elastomeric “bumpers” that prevent noise altogether.


The company manufactures a Vibration Damping Tape that consists of an adhesive, an elastomeric damper, and a layer of aluminum foil. When the elastomer is excited, it is unable to transfer the energy it receives through the foil layer. As a result, the energy is converted to heat and is then dissipated.


The company has also developed 3M VHB tape which can be used as alternative to mechanical fasteners for bonding rigid panels to a frame. The tape’s viscoelastic core works with the inherent rigidity of the panel to reduce vibration and noise.


Reducing friction between components that, for one reason or another, must make contact offers another NVH-reduction opportunity. In this instance, 3M’s Slick Surface Tapes combine polyethylene and Teflon to address the issue.


Finally, 3M’s Thinsulate Acoustic Insulation is suitable where sound absorption is the primary function of the tape. The use of tapes allows manufacturers to reduce the cost and the complexity of their designs while still attaining the NVH targets that provide consumers and their passengers with a more comfortable, quieter ride.

 

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New Heated Hose Mount Introduced to Help Optimize Packaging Production Lines

Posted By ASC, Wednesday, January 10, 2018
Robatech AG has announce its release of a new heated hose mount that will help to extend heat hoses’ useful life while helping its users to improve workplace safety and preventing common production-line hold-ups and errors.

The EasyFix Mount combines with an intelligent sensor to activate the RobaFeed3 automated filling system and the design keeps hoses, cables, and tubes from being constricted or bundled to the point where overheating takes place. This, in turn, reduces the changes of carbonization and the resulting clogging of nozzles. In addition, prevention of overheating increases operator safety while maintaining optimal hose temperature.

Working in tandem with the EasyFix Mount, the Robafeed3 filling system ensures that melting tanks are filled safely and as needed. This eliminates common operator errors like tank overfilling or allowing tanks to run empty with resulting production delays. The company says that by realizing these efficiencies, its customers will also use less adhesive and reduce their energy needs.

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Wearable Sensors Tech: Researchers Print Circuits onto Stretchable Polymers

Posted By ASC, Monday, January 8, 2018

Wearable devices that help you to improve your health and fitness are nothing new anymore, but up till now, they’ve always required wearing something extra. Now, a new device is using adhesives to allow people who hope to take better care of their health to turn their regular clothes into fitness monitors. The adhesive lasts two years and allows users to transfer the compact device to fresh clothing items, or even wash and dry the clothing item with the device in situ.Since the battery life is eighteen months, the adhesive will outlast the lifespan of the tag which is limited by its eighteen-month battery life.

 

The device, dubbed the Spire Health Tag, is meant to be completely unobtrusive and works with an accompanying app that sends alerts when necessary rather than delivering a constant stream of raw data. The Spire Health tag aims to reduce stress through promoting healthy habits, and its makers say that it is the first health monitor that uses adhesives to attacha wearable device to clothing rather than to skin.

 

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Bostik Completes Acquisition of XL Brands

Posted By ASC, Thursday, January 4, 2018

Bostik completed the acquisition of XL Brands on January 2, 2018.


With this acquisition, which complements the acquisition of CMP in May 2017, Arkema actively
pursues the development of Bostik which should exceed one third of the Group’s sales by 2023.

 

More information about XL Brands is available HERE. More information about Bostik is available HERE.

 

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HB Fuller Opens Automotive Competency Center

Posted By ASC, Tuesday, January 2, 2018

The move towards the increased use of adhesives in the automotive industry has created the need for an exchange of information between automakers and their suppliers. HB Fuller will be showcasing its latest products and techniques to car designers at its newly opened Automotive Competency Center in Mannheim, Germany.  Here, it will demonstrate and develop adhesives, application equipment, new testing methods and equipment, and perform laboratory testing for its clients.

 

The facility will perform its R&D functions in collaboration with clients seeking suitable adhesives for automotive trim, and electronics, as well as structural adhesives. HB Fuller expects the facility to expand its ability to develop new hot melt, water or solvent-based, reactive and film adhesive formulations.

 

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Sealant to Save Washington, D.C. Metro’s Red Line Subway

Posted By ASC, Tuesday, December 26, 2017

For years now, Washington, D.C. Metro’s Red Line has been battling a persistent threat from nature. The extra-deep underground segment has long been serving as a drain for underground water that once seeped into a nearby creek, and the persistent leaking that resulted has raised fears for the line’s safety.

Now, technicians believe that they have found a workable solution, and the Red Line Water Leak Pilot Project is underway. It aims to encase the tunnel with a special sealant that will form a leak-proof membrane. The ceiling of the tunnel will be drilled in hundreds of places, and then the sealant will be injected. Paul J. Wiedefeld, Metro Manager, says that the new strategy is effective but needs to undergo a testing period. In time, he hopes that the sealant process can be used along the length of the Red Line where leaks have caused track fires in the past.

 

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ASTM International Standard Measures Residual Stress in Various Building Sealants

Posted By ASC, Thursday, December 21, 2017
Updated: Wednesday, December 20, 2017

A new ASTM International standard will help manufacturers and regulators better understand how building sealants change once they have been compressed or stretched. The standard (C1815) was developed by ASTM International’s committee on building seals and sealants (C24).

“Think about the last time you rolled out pizza dough,” says ASTM International member Christopher White, a research chemist at the U.S. National Institute of Standards and Technology. “You would stretch the dough and it would change shape some, but then spring back as well. If you held it stretched out, it would spring back a smaller amount. This is what some sealants do when installed in a building.

 

White says this standard helps quantify that behavior.

 

"This is important, as the sealant will fail when the internal stress is greater than the tear strength,” notes White. “This standard allows the community to start to understand and quantify the time-dependent response of the sealant.”

 

The standard will be used by manufacturers to measure the residual stress in various sealant formulations. In addition, regulators will use the standard to modify existing sealant standards to incorporate sealant compression behavior.

To purchase standards, contact ASTM International customer relations at (877) 909-ASTM or at sales@astm.org. For more information on building sealants and other relevant standards, download the ASTM International construction standards overview document.

 

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Adhesives.org BLOG: Climate Change: States, Cities, and Businesses in the United States Are Stepping Up

Posted By ASC, Wednesday, December 20, 2017

BLOG:  Climate Change: States, Cities, and Businesses in the United States Are Stepping Up
 
By Paul Bertram, Adhesives.org Expert Blogger

 

In June of 2017, US President Donald Trump announced that the United States would pull out of the Paris climate accord, a UN agreement signed by 195 countries at the COP21 climate conference in Paris in December, 2015.

As of today, the US "will cease all implementation" of the accord, Trump said, adding that he will consider rejoining the deal if it is renegotiated to be more beneficial to the US economy.

I was part of the US delegation as an observer and presenter at the Paris COP 21, in December of 2015, and spoke to the benefits of high performance low energy buildings that contributed to reducing source carbon emissions.

Regardless of the climate change debate, the benefits of energy efficient buildings are a high priority consideration by owners.

ASC members in the building construction sector contribute to building energy efficiency with your sealants and adhesives. These materials are essential in joining up individual components to the system and providing optimized air and moisture performance.

What ASDC members should know about COP 23 that has potential benefits to business...

Read more at adhesives.org

 

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