6 challenges to understand before starting a wearable medical device project

Before you start a medical wearable device project, consider the following challenges and suggestions on how to address them. Diana Eitzman, Ph.D. and Kris Godbey Skin is unlike any other substrate. It sweats, grows hair, secretes oil, harbors bacteria, constantly sheds old cells, regenerates new ones and changes with health, environment and age – characteristics

Adhesive Tips

A supplement to Design World – Join parts faster, smarter, and under budget with TiPS from leading suppliers. Download PDF>>

Special adhesives bring clarity to optic applications

Fiber optic, opto-electronic and photonic applications must have superior transparency, requiring optically clear epoxies, polysulfides, and silicones that exhibit excellent light transmission. Contributed by Rohit Ramnath, Senior Product Engineer, Master Bond Optical transmission, the ability for light to be channeled through a material, is particularly important for fiber optic, opto-electronic and photonic applications. As a

Sika Corp. introduces Sikaflex-211 adhesive/sealant in black

Sika Corp. has announced that Sikaflex-211 US, a multi-purpose general sealant for transportation and industrial assembly applications, is now available in black 300 ml cartridges and 600 ml unipacs. Sikaflex-211 US is a one-component non-sag, highly elastomeric, high performance, purpose built interior and exterior sealant that cures on exposure to atmospheric humidity to a tough,

Thermally Conductive, Electrically Insulative Epoxy Delivers Low Exotherm for Large Castings and Potting Applications

Master Bond EP39MAOHT is a room temperature curing system for demanding bonding, sealing, coating, potting and encapsulation applications. “It is a versatile product that combines convenient handing, good flow, thermal conductivity, electrical insulation and high temperature resistance,” said Robert Michaels, vice president of technical support. “Its toughness lessens the chance of stress cracking when thermally

One Part, Toughened Epoxy for Specialty Dam-and-Fill Encapsulation

Master Bond Supreme 3HTND-2DM is a rapid curing, toughened, one part epoxy system used for the dam-and-fill method for chip-on-board encapsulation. Essentially, there are two methods to protect chips and their wire bonds. One method is referred to as glob top, where the encapsulating system is dispensed and applied directly to the area to be

Structural bonding solutions for plastics

By Rachel B. Nashett, Application Engineer-Henkel Corporation Plastics have become an integral part of everyday life. It would be difficult to identify a manufacturing process that does not use plastics. Even products that appear to be composed exclusively of metals are usually coated, sealed, or adhesively joined using polymeric materials which improve the performance, appearance,

Common causes for adhesive problems

Edited by Mike Santora High tech adhesives are reliable and issues do not occur often. When used correctly, they can resolve many design problems while also saving money, time and effort. However, there are many possibilities for failure when using these materials. Failure can be defined as no adhesion upon cure, reduced adhesive strength or

Advanced epoxy adhesives revolutionize structural bonding

by Walter Brenner, PhD, Founder, Master Bond Inc. Structural polymers offer distinct advantages over traditional fastening methods. Here, we explore the cornerstones of successful structural bonding. Structural bonding is defined as the process of joining parts together using an adhesive as opposed to conventional mechanical fasteners or assembly methods such as soldering, brazing or welding.

Key design tips for working with adhesives

by Kevin Balben, Product Specialist, DELO Industrial Adhesives For the latest materials, adhesive bonding is a better way to join. Here are key tips that will ensure a solid, reliable bond. Structural bonding has many advantages over conventional joining technologies. It’s best to consider adhesives early on in the design phase to take full advantage

Low thermal expansion epoxy from epoxySet

epoxySet announces the release of the EB-315, low thermal expansion epoxy, to the line of low expansion/ thermally conductive products. This versatile material can be used as an adhesive or encapsulant for semi-conductors and other microelectronics, a gasket sealing compound, wire bonder or any application where temperature cycling between -55°C and 230°C is required. The

Fast cure adhesives now available for cartridge dispensing

Epoxies Etc. has added three new fast-cure epoxies to the range of adhesive products suitable for use with TriggerBond® dispensing guns. The TriggerBond system packages an adhesive’s two components into their own cartridges, which fit in a dual-barrel dispensing gun. Because the cartridges contain precise quantities of hardener and resin, TriggerBond produces the correct mix

New Catalog on Adhesives, Sealants and Coatings

Master Bond is offering a new, easy to read, 28 page catalog with performance and processing data on its extensive line of epoxies, silicones, UV curing compounds and specialty systems for the aerospace industry. These products ensure reliability in the assembly of aircraft structures, components, interiors and MRO applications. They are widely used for structural

One Component, Aqueous Based Coating System

Well suited for electromagnetic interference and radio frequency interference shielding applications, Master Bond MB600G is an aqueous based, sodium silicate system with graphite filler. Graphite filled materials are widely used for shielding and static dissipation applications because of the balance of shielding effectiveness and cost. Shielding effectiveness is most often measured by attenuation. It is

Updated Loctite® Adhesive Sourcebook from Henkel Now Available

Henkel Corporation has updated the Loctite® Adhesive Sourcebook for 2014 to include the latest adhesive, sealant, lubricant, coating and dispensing/curing equipment technologies. Available in print and online as an e-catalog, the new Loctite® Adhesive Sourcebook 2014 is a comprehensive 212-page reference that features more than 1,500 products for industrial manufacturing and maintenance. The Adhesive Sourcebook

Henkel And Loctite Sponsor Rookie Of The Year in X Games

At X Games Austin, June 5-8, pro-snowboarder and Winter X Games gold medalist Nick Baumgartner will trade in his board for four wheels and a track as he fights for gold in Off Road Stadium Super Truck Racing, an event making its debut in the June 2014 X Games. Sponsored by Henkel Corporation and Loctite®

Optically Clear, Condensation Curing Silicone

Developed for potting and encapsulation applications where an addition cured silicone cannot be used, Master Bond MasterSil 152 is a two component, condensation curing system that only requires air for complete cross-linking. Unlike addition cured systems, there are no substrates that will inhibit the cure. This system fully cures at room temperature in 24-48 hours

Henkel Honored with Sustainability Award

Henkel Corporation was recently honored as the recipient of the BD (Becton, Dickinson and Company) 2013 Sustainability Award. This award recognizes a BD supplier who has best supported the company’s efforts toward carbon footprint reduction. Henkel was recognized both for the work it has done with BD to reduce costs and streamline manufacturing production, and

Thermally Conductive Epoxy Resists High Temperatures

Formulated for bonding and sealing applications, Master Bond EP46HT-1AO is widely used in the aerospace, electronic and specialty OEM industries. Unlike most conventional two component epoxies, EP46HT-1AO cures with the addition of heat, which allows it to have a working life exceeding 24 hours. It has a forgiving 100 to 30 mix ratio by weight

Epoxies: The “Go To” Materials for Oil and Gas Instrumentation

By Robert Michaels, Vice President Technical Sales, Master Bond Oil and gas are a primary source of energy. In the exploration and extraction of oil and gas, epoxies can be found in most of the equipment used to search, assess, and extract these sources of energy. In the last 200 years or so, oil and

AI Technology, Inc. Releases Second Generation COOL-PAD™ CPR 7154

AI Technology, Inc. (AIT) introduces COOL-PAD™ CPR7154, a new class of thermal interface material that dispenses like a thermal pad, but performs with characteristics like that of a grease or gel when device temperatures increase to above 45°C. COOL-PAD™ CPR7154 is optimized to accommodate large areas with different heights and gaps of less than 3-mil

Flexible Loctite® Instant Adhesives Deliver High-Strength Bonds in Seconds

Henkel Corporation has developed two new highly flexible instant adhesives, Loctite® 4902™ and Loctite® 4903™, that offer elongations up to 155% and provide high-strength bonds in seconds. Both cyanoacrylate adhesives bond reliably to plastics, rubbers, metals and other substrates and offer ISO 10993 biocompatibility for use on disposable medical devices. These one-part, low-viscosity instant adhesives

How to Secure Fasteners and Strengthen Interference Fits

By Doug Lescarbeau, Anaerobic Technology Manager, and Tina Adams, OEM Market Manager, Henkel Corporation Retaining compounds offer a number of benefits in fastening applications, including reducing weight, lowering cost and assembly time, and even reducing some dimensional precision requirements. Here’s a closer look at when and how you can use retaining compounds. Ancillary benefits of

Rogers Corp Launches Coolspan Thermally & Electrically Conductive Adhesive Film

Rogers Corporation (NYSE: ROG) Advanced Circuit Materials Division launched COOLSPAN® Thermally & Electrically Conductive Adhesive (TECA) Film providing reliable high temperature performance. COOLSPAN TECA Film is a thermosetting, epoxy based, silver filled adhesive film used to bond circuit boards to heavy metal backplanes, heat sink coins and RF module housings. The adhesive can be used

New Loctite® Structural Adhesive and NVH Selector Guide

Henkel Corporation has introduced its new Loctite® Structural Adhesives and NVH Selector Guide. This 30-page brochure is designed to educate readers about the performance of structural adhesives in demanding, high-stress applications, and to communicate their ability to reduce noise, vibration and harshness. Engineered to eliminate or greatly reduce fasteners and welds from an assembly, structural