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Hernon Launches New Bench-top Ammunition Sealer for Lower Volume Operations

Posted By ASC, Wednesday, September 18, 2019

Adhesive, sealant and dispensing system manufacturer, Florida-based Hernon Manufacturing Inc, has decided to add a new compact and condensed model to its industrial-level ammunition sealing system range. The new compact device is aimed at smaller operations and R&D companies which separate and batch smaller quantities of ammunition than its current industrial client base.

 

The new bench-top Autosealer 5220 makes use of most of the same technology as the large-scale models, including Sure Shot jet dispensing and Ultracure UV LED curing lights. However, unlike the bigger ones, the 5220 model requires manual loading. The cartridges are then automatically aligned for dispensing. A primer and wicking sealant are dispensed onto the case mouth and cured, where exposed, using the UV LED lights, or anaerobically where it is not exposed. The 5220 supports ammunition of up to .50 caliber, and processes at a rate of 20 parts per minute. 

 

 

 

 

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NASA Certifies Master Bond’s New Adhesive

Posted By ASC, Tuesday, September 17, 2019

NASA low-outgassing certification could be the cherry on the top for Master Bond’s new UV curable sealing, bonding and coating adhesive, UV10TK40M. It’s aimed at sectors like the optical, fiber-optic, opto-electronic and electronic industries, where assemblies could be affected by condensation or fogging should trapped gas be released.


MasterBond reported that to earn the certification, the single-component UV10TK40M stood up to 85°C at 85%RH for over a thousand hours, but this was only one of the features included to meet the needs of those industries. Others included its light transmission and optical clarity; high viscosity and temperature resistance; high glass transition temperatures; its ability to bond well to substrates like plastics (including polycarbonates and acrylics), glass and surface-treated metals; and its high chemical resistance to water, oils, acids, bases and solvents.


According to Master Bond, the adhesive is not inhibited by oxygen, and is UV curable within 20 to 30 seconds subject to the intensity and distance from the light source, and the section thickness. Although a thickness of only a few thousandths of an inch usually proved adequate for bonding, the system could cure sections up to a quarter inch thick. It also showed low shrinkage and could be used as an electrical insulator at temperatures as low as -60°F or as high as +450°F.

 

 

 

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3M’s New Portable Cylinder Spray Adhesive for Construction Materials

Posted By ASC, Wednesday, September 11, 2019

3M has released a new portable cylinder spray adhesive called the HoldFast 70. The company reports that the new adhesive is versatile, eases application, and increases bonding speed making it suitable for joining construction materials across a wide range of substrates. Market applications include construction, mobile and prefabricated housing, furniture, HVAC, and the production of RVs and speciality vehicles. 


The cylinder, available in various sizes, releases a wide-web spray of fast-tacking industrial grade adhesive with heat resistance up to 190 degrees F. The adhesive, because of its high solids content , causes minimal overspray and soakage into the substrate, while maximizing its holding power, and combining a long open time for positional re-adjustments with a short dry time. 


According to the company, it is effective when used for waterproofing and protection from moisture, and for temporary of permanent bonding on a wide range of substrates. These include foam, polystyrene, wood, paper and cardboard, as well as felt and fabrics, various nylons and plastics, drainboard, FRP panels, fibreglass and insulation materials. 

 

 

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New Adhesive Bandage Based on Fetal Skin’s Healing Abilities

Posted By ASC, Tuesday, September 10, 2019

Scientists from Harvard and McGill University in Canada have developed a new form of active adhesive dressing their research suggests will have a positive effect on the speed and efficacy of wound treatment and healing. It will do so by recapturing the natural ability of fetal skin to regenerate, close wounds and heal rapidly without leaving a scar.


The research team reported that to replicate the healing functions of prenatal skin, which usually fade with age, the new active adhesive dressings (AAD) include adhesive hydrogels that are tough and stretchable, capable of adhering to tissue, and perform an antimicrobial function that increases the healing capacity of the skin. The hydrogels are thermoresponsive and therefore activated by exposure to body heat.


Tests done so far have indicated that the new dressing is capable of speeding up wound closure and healing time when compared to other bandages, and there were no inflammatory or immune system responses to indicate that using the AAD dressings on living tissue would be unsafe. The dressings have yet to undergo human trials before being released to the market.

 

 

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Researchers Find New Way to 3D Print Microchannels using Silicone Sealant as the Ink

Posted By ASC, Thursday, September 5, 2019

Researchers at Singapore University of Technology and Design's (SUTD) Soft Fluidics Lab researchers have found a way around the current challenges facing the use of 3D printing for microchannel fabrication. The solution, according to the researchers, lies in 3D printing fast-curing silicone sealant in direct ink writing (DIW) straight onto substrates like glass, plastic and membranes, as well as already-printed circuit boards and other flat surfaces.


The approach could solve existing challenges in fabricating microchannels with 3D printing such as flexibility, optical transparency and biocompatibility in materials; the limitations on the dimensions current commercial 3D printers can control and achieve, and the integration of 3D printed microfluidics with functional substrates and materials. 


In using DIW, the patterned silicone sealant determines the design of the fluidic channels while the transparent substrates above and below seal them. This allows for dimensions to be dynamically tuned, and channel widths to be reduced to around 30 microns. The channels can also be imaged on a microscope.


The researchers reported that DIW 3D printing of silicone sealant on an existing circuit board allowed for integrating electrodes into the microchannels immediately, to act as real-time flow sensors. The method can also be used for integrating semi-permeable membranes in microchannels to culture keratinocyte cells.

 

 

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Dow Polyurethanes Hard at Work at Tokyo’s 2020 Olympics Venues

Posted By ASC, Wednesday, September 4, 2019

The Worldwide Olympic Partner and Official Chemistry company of the Games, Dow is on track and going all out in its own race to ensure the Olympic Stadium, Tokyo Aquatics Centre, Ariake Arena, Ariake Gymnastics Centre, and other Olympic venues will be sealed, coated, insulated and protected by the time the world’s best athletes go for gold in the 2020 Olympic Games in Tokyo.


In preparing venues for next year’s games, the company has put its products to work in finding the right solutions to building new and temporary arenas, as well as retrofitting sporting venues which date back 55 years to the 1964 Tokyo Olympic Games.


An array of Dow products are being used in the refitting and construction processes including polyurethane sealants which have be used to fill the gaps between and around window frames, doors and walls to help control the temperature levels in the Olympic sports venues.

 

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Tannic Acid Hardeners could Cut Costs and Boost Durability of Adhesives

Posted By ASC, Wednesday, August 28, 2019

Researchers at Purdue University in the US have discovered that tannic acid, currently used in widely divergent fields such as medical treatment, leather tanning, ink manufacture and as a flavoring for certain drinks, could prove equally beneficial in the adhesives, coatings and manufacturing composites sectors. The researchers report that their technological research has shown that this acid could also add some extra benefits like lower cost and sustainability in the process.


Its new role would be as the hardening agent added to the polymer to ensure its stability and rigidity in environments with high temperatures. According to the research team, using tannic acid as a hardener would also reduce the cost and improve durability, while at the same time lessening the environmental impact of the adhesives, coatings, structural composites, insulating materials and electronic components for which epoxy polymer is used.

 

 

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3M Introduces Fold-and-Seal Shipping Packaging for Online Purchases

Posted By ASC, Tuesday, August 27, 2019

With its new Flex & Seal packaging material, 3M aims at reducing the time, space and materials involved in shipping small products by cutting down the need for tape, oversized boxes and superfluous stuffing. According to the company, the roll of packaging material is designed for parcelling the reasonably lightweight items (under 3 lb) that account for almost 60% of products bought online.


The wrapping material is a sandwich of three layers of plastic, all specially designed to meet different requirements required by packaging material. It starts with an inner gray adhesive sheet to secure the enclosed object, and is topped with a water and tear resistant cover sheet. Between these is a cushioning layer to protect the enclosed object against damage during shipping and delivery.


The material is turned into a envelope-like shipping package by cutting a suitable length from the roll of packaging material and folding it over the object that’s placed on the adhesive layer.


According to 3M, while the material will not adhere to the enclosed object, pressing the edges of the adhesive seal together will create a seal within 30 seconds that will be strong enough to require cutting or tearing to break it. Already available in 10, 20 and 40ft rolls, a 200ft bulk roll is due for launch soon.

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New App Helps Optimize Adhesive Usage in Packaging

Posted By ASC, Wednesday, August 21, 2019

Adhesives manufacturer Baumer hhs, which has been producing adhesives for more than 30 years, has introduced a smartphone app that will help its customers in the packaging industry optimize the amount of adhesives used in producing their packaging. The company reports that its GlueCalc App aimed at both reducing the soaring costs of packaging and cutting down on Co2 emissions, both areas of concern in the packaging sector.


The App calculates the benefits of replacing adhesive lines with a series of carefully-placed dots or shorter lines, based on input involving the existing length, width and number of lines. It then displays the resulting tables of information on the smartphone screen, along with a scientifically-backed report on the predicted reduction in emissions. Baumer reports that when applied, this information has, in some instances, reduced adhesive consumption by half, so leading to annual six-figure cost savings which rise with the size and ouput of the packaging manufacturer.

 

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Industrial Adhesive Lifts 17.5 Tonne Truck for World Record

Posted By ASC, Tuesday, August 20, 2019

It is not the first time lifting big trucks with the help of adhesives has made the record books, but DELO Industrial Adhesives has snatched the current first place in the Guinness World Records from the previous record holder by raising the weight of the truck by over a tonne. It lifted a 17.5 tonne truck (compared to 16.3 tonnes) and held it in the air for an hour, supported only by a 3.5cm aluminium cylinder bonded with three grams of its own adhesive.


DELO reported that it used its Monopox range of single component heat-cured epoxy resins used in the mechanical engineering, automotive and electric vehicle industries as a base from which to develop a specially-strong and high-temperature-resistant adhesive for the world record attempt.

 

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