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KARNAK Launches Sustainable Membrane Sealant Air Barrier Product

Posted By ASC, Wednesday, October 18, 2017

KARNAK has released a new vapor-permeable air barrier product for building envelope protection. The makers of damp and waterproofing products say that the new product, K-NRG Seal VP, is an elastomeric membrane seal which will improve buildings’ energy efficiency while enhancing mold resistance.

 

The product is applied as a spray in liquid form and bonds with the majority of wall construction materials. These include wood, concrete, stone, gypsum boards, and CMU. No specialized equipment is required for its application. The vapor-permeable barrier has undergone and passed the NFPA 285 Fire Test and exceeds currents ASTM standards.

 

Apart from the properties already mentioned, the product is intended to provide additional acoustical isolation and may contribute to improving indoor air quality while reducing the need for supplementary heating and cooling. As such, it can contribute to the achievement of LEED certification.

When used in combination with other KARNAK sealants, K-NRG Seal VP forms part of a complete vapor-permeable air-barrier system.

 

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Masterbond Fulfils Requirements for Airbus Adhesive

Posted By ASC, Tuesday, October 17, 2017
Updated: Tuesday, October 17, 2017

Masterbond has announced that its new Masterbond EP93FRHT adhesive has passed stringent testing and has been approved for use in the manufacture of Airbus aircraft. The two-part epoxy is suitable for use as an adhesive, a sealant, or as an encapsulating system for potting electronics. The non-halogenated flame-retardant epoxy will be used on interior panels, flooring and door assemblies where flame protection will be a vital safety prerequisite.


The new product is compatible with a wide range of substrates and bonds at room temperature overnight. Thereafter, Airbus will achieve final curing with three to five hours cure at 150-200°F. Masterbond says that its new adhesive has particularly high resistance to thermal cycling as well as good chemical resistance.


To achieve approval, the adhesive was subjected to vertical burn testing, smoke emission testing, and toxic emission tests. Masterbond notes that aside from its compatibility with a wide range of substrates, the adhesive has electrical insulation properties, low shrinkage during the curing process, and convenient mixing using two color-coded components and a one to one (by weight) mixing ratio.

 

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Adhesives.org BLOG: Manufacturers and Supply Chain LEED and Green Building Rating Systems Reality Check

Posted By ASC, Monday, October 16, 2017

BLOG:  Manufacturers and Supply Chain LEED and Green Building Rating Systems Reality Check
 
By Paul Bertram, Adhesives.org Expert Blogger

How is the industry responding to information requests of various “Green Rating Systems and related product certifications?

Reflecting back
The US Green Building Council began its environmental movement in 1993.LEED – Leadership on Energy and Environmental Design – was introduced in 2000. LEED project certifications, USGBC membership and related designations managed by GBCI established as specifiable environmental criteria. Early adopters and market leaders led this movement with LEED in the lead.

The USGBC Greenbuild conference was founded in 2002 with the 2003 first major conference in Austin that reported 5,000 registrants. At the height of USGBC’s reign, Greenbuild attendance at the 2010 Chicago conference reported 27,000 attendees with 750 exhibitors. In contrast, the 2016 LEED Los Angeles conference reported 18,079 in attendance and 531 exhibiting companies.

Currently projects must register with LEEDv4 and includes greater emphasis on Water, Material Transparency/Disclosure within Materials & Resources. Energy Efficiency and IEQ (Indoor Environmental Quality) remain significant credits.

The Expansion of Materials & Resources Credits Sparked Much Controversy
Material & Resources specific to product Material Transparency/Disclosure credits remain a topic of discussion. Credits requiring manufacturers responses include: Building Life Cycle Impact reduction, Building Product Disclosure and Optimization: EPDs, Sourcing of Raw Materials, Multi-Attribute Optimization, Material Ingredients; Greenscreen, Cradle to Cradle, Supply Chain Optimization.

These new and updated M&R credit areas are intended to influence greater environmental evaluation of materials & resources. My concern is that focus on environmental attributes may be detracting from Functional Performance requirements. Functional Performance requires understanding building science and physics. The lack of sound building science has contributed to project latent defects. Understanding environmental attributes of products/systems plays into material evaluation/specification but has to be weighed against all of the evaluation criteria as cited in CSI’s Project Delivery Practice Guide.

Of note, few architects or specifiers actually know how to consider this new “Material Transparency/Disclosure” reporting in a comprehensive material evaluation/specification beyond checking the box for credit contributions. Some firms have hired or have relationships with Toxicologists and Chemists to help address the intent of the science of these credit

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Adhesives and Reusable Medical Devices: Considerations, Types, Uses

Posted By ASC, Wednesday, October 11, 2017

The reusable medical device market is an area in which adhesive technologies are developing at a rapid rate. These devices are frequently made from engineering resins such as Polyolefins, PPS, ULTEM, PEEK, and RADEL as well as metals, particularly titanium, nickel, aluminum, and stainless steel.

This wide range of materials means that medical adhesives can include silicones, epoxies, polysulfides, polyurethanes, and more, and the choice of adhesives will depend on the medical device’s uses as well as the materials from which it is made. Apart from offering greater efficiency in the assembly of medical devices, adhesives often outperform traditional fasteners in their resistance to sterilization processes.

Extra Care with Adhesives
Choosing the right adhesives for medical devices does, however, pose a few challenges. First and foremost, biocompatibility must be in accordance with standards. Secondly, they must maintain bond integrity despite harsh sterilization processes. These demands not only affect the adhesives chosen but also the way in which they are used.

The way in which adhesives are measured, mixed, applied and cured must be precise. The type of sterilization process that the device will be subjected to will determine the conditions the adhesive must withstand. For example, autoclaving implies that an adhesive must withstand temperatures of up to 260° F (130° C). Typically, this implies the choice of adhesives that are cured at high temperatures.

Adhesives Affect Device Design
It’s not only a matter of choosing the right adhesive for a specific medical device design – the decision to use adhesives for better performance can affect the design of the device itself. For example, the greater the surface area to be bonded, the stronger the bonds will be.Also, some materials used in medical devices will require pre-treatment before the surfaces can be bonded. This may involve roughening surfaces, chemical etching, or plasma treatment.

Adhesive Mixing and Dispensing
Medical adhesives can be one or two-part adhesives, and the way in which they are cured can be broadly divided between these two types of formulation. One-part adhesives will typically remain workable at room temperature and will cure much faster when exposed to heat. Two-part adhesives will typically cure at room temperature, but curing can be hastened with exposure to heat. Having said this, some will only cure at very high temperatures.

Mixing two-part adhesives precisely can be achieved by packaging them as gun applicators or by using pre-mixed formulations that are preserved through freezing. Either one or two-part adhesives will work in automated production systems. Whether working in large or small-scale manufacture, dispensing systems that suit the volume requirements can be implemented.

Potting and Curing
At times, entire components must be encapsulated with adhesive, and here the coefficient of thermal expansion becomes particularly important. Currently, products using a ceramic filler like aluminum oxide are used in this context.

Getting high tack but sufficient pot life to allow for small readjustments presents another challenge. One company, Masterbond, overcomes this by using systems that combine UV light and high temperatures in dual curing systems. Typically, tack will be achieved under UV light, with final post-curing taking place in a high-temperature environment. Shrinkage can present a problem, but Masterbond says it is working to overcome this problem.

Bond Strength, Testing, and Off-Gassing of Adhesives
Lap shear testing and hardness tests help adhesive manufacturers to test bond strength, but the substrate on which adhesives are used will also affect the results. For example, metal components will perform better in lap sheer tests than plastics, with plastic substrates often giving way before the adhesive does.


Medical adhesives manufacturers also have to limit off-gassing of harmful agents. Experts agree that epoxies are currently the solution with the lowest off-gassing.

Medical Device Manufacturers and Adhesives Industry Cooperation
When the bonding of materials requires adhesives with specific properties, adhesives industry chemists are better able to recommend products or formulate new ones when they know precisely what will be required. Industry insiders recommend cooperation between medical device designers and adhesive industry partners from the early design concept stage. Should the available adhesives not yet be able to fulfill requirements for specific substrates and the demands of sterilization procedures, medical device designers can then explore alternative materials.

 

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FOR IMMEDIATE RELEASE: ASC Announces Launch of Adhesives & Sealants Selection Guide for OEM Body Shops

Posted By ASC, Thursday, October 5, 2017
Updated: Wednesday, October 4, 2017

FOR IMMEDIATE RELEASE

 

Media Contact:

Steve Duren

Senior Director
(952) 300-8280
steve.duren@ascouncil.org


  

 

ASC LAUNCHES ADHESIVES & SEALANTS GUIDE FOR THE OEM BODY SHOP
 

 

October 5, 2017 – Bethesda, MD – The Adhesive and Sealant Council (ASC) has launched a guide for adhesives and sealants intended for stakeholders in the automotive and heavy truck OEM body shops. “OEM and tier 1 stakeholders in the automotive marketplace should be aware of the efforts within ASC to help the design and specification community become more aware of the impact that adhesives and sealants have on vehicle body structures,” said Ana Wagner of Dow Automotive and Chair of the ASC Task Force on Growth.  “Light weighting, bonding dissimilar materials, and reducing noise vibration and harshness (NVH) are just a few of the benefits adhesives and sealants provide,” she said. “This new guide has been an industry effort and addresses key adhesive/sealant applications and design considerations in the OEM Body Shop with a focus on the body-in-white (BIW).” 

 

“This new guide that focuses on the OEM body shop is our first step in a series of guides we would like to use to help educate the design community on details with adhesives and sealants,” notes Steve Duren, Senior Director at ASC. “The guide describes the choices with adhesive and sealant chemistries types for the BIW, key bonding applications in the body shop and further highlights key test methods,” he said. Our intention is to develop two more guides in 2018 and 2019 that address adhesive and sealants used in the OEM Paint process and a third guide to focus on the Assembly/Repair part of the process. More information on adhesives and sealants can be found on our Transportation Landing Page.”

 

The ASC ‘Task Force on Growth’ is focused on providing value chain partners with industry neutral information that help ASC members grow the market for adhesives and sealants in the transportation marketplace. The ASC transportation landing page contains white papers, blogs, videos, reports, and on-demand webinars.  More information can be found here. The new guide can be accessed here.

To learn more about the ASC, visit www.ascouncil.org or contact Steve Duren, Sr. Director of Member Services, at steve.duren@ascouncil.org or 952-300-8280

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New Eco-Friendly Dissolving Paper Labels Address Short-Term Labelling Difficulties

Posted By ASC, Wednesday, October 4, 2017

There are times when labels must be removed and replaced frequently, particularly in the transport and logistics industries. For example, recyclable crates and even airline meal containers must be relabelled often. To avoid possible error, the old label must be removed first, but adhesive and paper residues have proved problematic in the past.

 

UPM Raflatac has developed a dissolving label that they report will overcome these problems for its clients in the transport and logistics industries. According to the company, the label is compatible with thermal printing systems and is easily and completely removed with cold water thanks to the dissolving paper and adhesive combination they developed. Because the paper dissolves completely, there is no danger of blocking drains with paper residue during the process.

 

In addition, the labels are BPA and BPS-free. The new dissolving Paper Thermal Eco label solution is the latest addition to the company’s product range which includes the existing Dissolving Paper Plus label.

 

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New Adhesive for Textile-reinforced Composites Manufacturing

Posted By ASC, Monday, October 2, 2017

Textile reinforcement specialist, Chomarat, has announced the release of a new adhesive formulated to improve productivity and workplace health and safety in the manufacture of textile-reinforced composites. The adhesive, dubbed FX, is compatible with all Chomarat fabrics, multiaxials and core materials.


The company says that the new adhesive facilitates the positioning of reinforcing fabrics during the molding process and can be used as a more efficient alternative to existing spray-on adhesives. Thanks to the uniformity of placement the adhesive allows, the risk of delamination is reduced, while resin cure remains unaffected.


The adhesive will be used primarily in the manufacture of composite parts used in the marine and transportation industries and emits no VOCs, allowing manufacturers to reduce workplace hazards. The FX range of adhesives will form part of a product range that includes Chomarat’s Easytape adhesive glass-fiber tapes.

 

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Sika Looks to Stepping Up Acquisition Drive

Posted By ASC, Friday, September 29, 2017
Updated: Thursday, September 28, 2017

Sika's (SIK.S) Chief Executive, Paul Schuler, wants to accelerate the Swiss industrial and construction chemicals maker's acquisition drive with more and bigger deals in the next 15 months.

Schuler, who took the reins in May, said he expected to buy up to six companies by the end of next year, with revenues ranging from 100 million to 500 million Swiss francs.

The purchasing spree would be ramped up from Sika's previous strategy of bolt-on acquisitions of companies with revenues of around 50 million francs.

Sika, which makes chemicals used in construction projects like the Gotthard rail tunnel under the Alps, could spend up to 1 billion francs ($1 billion) per year, Schuler told Reuters in an interview, up from the 200 to 300 million francs it has been spending annually.

"We would like to be a bit faster, increase the speed of acquisitions," Schuler said, adding the group had a strong pipeline of acquisitions.

Schuler said it was preferable to buy family-owned businesses which had succession issues, and buying them would allow them to increase their profitability by leveraging Sika's sales, distribution and manufacturing network.

 

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DowDuPont to Change Breakup Plan

Posted By ASC, Thursday, September 28, 2017
Updated: Thursday, September 28, 2017

Two weeks after its formation, DowDuPont Inc. is altering its plan to splinter into three companies, a step that appears set to end the threat of a fight with as many as four activist investors.

The company, formed by the union of Dow Chemical Co. and DuPont Co. on Aug. 31, has long planned to split into separate companies in the next 18 months: agriculture, specialty-chemical products and materials.

The new plan moves businesses with more than $8 billion in annual revenue from the materials spinoff, which is to house the legacy Dow operations and be named Dow, into the specialty-chemical concern, according to people familiar with the matter.

The move will separate into parts what had been Dow Corning, a pioneer in silicone technology that was taken over by Dow last year, and put some of it into each of the specialty and materials companies, the people said. Previously, the silicone business was to be housed entirely in the new Dow.

The product of a five-month review, it will enable those two companies to focus on different customers, the people said.

Shareholders, including activists Trian Fund Management LP, Third Point LLC, Glenview Capital Management LLC and Jana Partners LLC, had pressed for a dramatic reshaping of the breakup, particularly as it relates to the silicone business.

 

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Master Bond Releases New Custom Developed Single-Component Epoxy

Posted By ASC, Thursday, September 28, 2017

Master Bond Inc. has announced the release of its new toughened single-component epoxy, Master Bond Supreme 3HT. The adhesive was developed to meet the needs of one of its clients, but will be suitable for use in a wide range of industries according to the company.


The epoxy can cure within 20 to 30 minutes at temperatures of 250°F but will cure within 5 to 10 minutes at higher temperatures. It can bond a wide range of substrates and is suitable for use on dissimilar substrates. In addition, Master Bond reports that it is resistant to chemical exposure, forms tough bonds, and has electrical insulation properties, maintaining bonds despite fluctuations in temperature tolerating temperatures as low as -100°F and as high as 350°F.


The company reports that the adhesive is primarily being used for bonding plastics to similar and dissimilar substrates, but has also been used to bond rubber to metal. It is suitable for use across a wide range of industries and is particularly well-suited for use in the manufacture of electronic and opto-electronic devices.

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