Adhesives keep transparent dressings clear

A line of transparent dressing adhesives are made from polyester and polyethylene casting sheets to accommodate different converting methods and dressing styles. Ideal for wound dressings and securing catheters and IVs, the adhesives have a great affinity for skin yet remove cleanly with no residue. In addition, they offer high breathability and good oxygen and moisture vapor exchange to keep a chronic wound moist for faster healing. And, with excellent waterproof characteristics, the systems are impermeable to liquids, bacteria, and viruses. Adhesive systems are tested according to ISO 10993-5/-10 standards for cytotoxicity, skin irritation, and skin sensitization.

Mactac Medical Products, 4560 Darrow Rd, Stow, Ohio 44224, (866) 262-2822, info.ims.ca/18359-250

Electrically conductive adhesive

Electrically conductive pressure-sensitive adhesives are for electrical interconnections in devices such as electrodes, defibrillators, and biosensors. These products require a uniform conductive adhesive for stability and consistency with exceptional bond strength, even under mechanical and environmental stress. For example, the electrically conductive ARcare 8881 is a non-woven material coated with an electrically conductive adhesive on both sides and protected by a Kraft liner on both sides. ARcare 90447, also electrically conductive and non-woven, is nickel-free and coated with an electrically conductive adhesive on both sides with a white, double-coated release liner. And ARcare 90366 is a highly conductive, 2-mil, self-wound transfer adhesive protected by a clear double-coated release liner. These adhesives can also be customized by modifying their chemistry, forms, and construction, adhesive thickness, and release-liner selection.

Adhesives Research, P.O. Box 100, Glen Rock, PA 17327, (800) 445-6240, info.ims.ca/18359-251

Adhesives work with Noryl resins

Adchem tapes have been successfully tested with Noryl resins from Sabic Innovative Plastics. Rubber and acrylic adhesive chemistries on the tapes provide many ways for mounting and bonding to foam materials depending on the performance requirements. Adhesives are available to produce removable or permanent bonds, and come as double-coated, unsupported, and foam tapes. In addition, many company tapes can bond foams manufactured by Foamex, Rogers, Griswold, Armacell, Carpenter, Voltek, and other foam manufacturers, thereby opening new options for application of the Noryl resin products.

Adchem Corp., 1852 Old Country Rd, Riverhead, NY 11901, (631) 727-6000, info.ims.ca/18359-252

Cyanoacrylates attach difficult-to-bond materials

Fast-setting Permatex brand ZipGrip cyanoacrylate adhesives eliminate the need for fixturing and are ideal for bonding or repairing plastics, metals, rubber, and other materials. The adhesives are available in a range of viscosities from liquid formulations for close-fitting parts and porous substrates, to gap-filling gels that stay in place even on inverted surfaces. Surface-insensitive ZipGrip adhesives bond plastics, metals, and rubber but are specially formulated for fabrics and other difficult-to-bond surfaces. The adhesives are ideal for porous or acidic substrates such as wood, leather, and fiberglass mat, even in dry environments. Some formulations wick into porous materials. Viscosities range from 30 cps to a gel that is effective on rough surfaces, and fills gaps to 0.010-in. Low-odor ZipGrip adhesive is a non-blooming, low-viscosity formulation that is ideal for bonding in closed environments.

ITW Devcon, 30 Endicott St, Danvers, MA 01923, (800) 933-8266, info.ims.ca/18359-254

Tough adhesive withstands severe conditions

Master Bond EP11SIC is a silver-filled epoxy-resin system with high electrical and thermal conductivity. It has the convenience of a one-component system in addition to flexible cure schedules. It adheres well to metallic and nonmetallic substrates with tensile strength greater than 6,000 psi and tensile-shear strength over 1,500 psi. EP11SIC is tough for a filled system and features good resistance to thermal shock, high temperatures, and chemicals. It is recommended for bonding, potting, sealing and coating between -60 to 300F. Gel time at 300F is about 20 to 25 min and 40 to 50 min at 347F. Typical performance properties include a low volume resistivity of less than 0.001 ohm-cm, a surface resistance of less than 1 ohms/square, and a thermal conductivity of 7.9 W/meter-K (55 BTU/in/hr/ft²/F).

Master Bond, 154 Hobart St., Hackensack, NJ 07601, (201) 343-8983, info.ims.ca/18359-255

Goes on blue, dries clear, and safe for medical tasks

Adhesives formulated with See-Cure technology are bright blue when uncured. This makes them easy to see on the surface of substrates, in deep wells, or when sandwiched between two layers of materials. The blue-colored adhesives will not permanently stain component surfaces they contact. Because the color is visible, simple vision systems can be placed in assembly lines prior to curing to easily identify adhesive coverage and profile. As the adhesive cures, the blue color within the adhesive fades and ultimately turns clear upon full cure.

Adhesives formulated with See-Cure for use in medical-device assembly were subjected to biocompatibility testing. These verified that the addition of Dymax See-Cure technology has no affect on the biocompatibility rating of the original adhesive product or on the biocompatibility of the component surfaces.

Dymax Corp., 318 Industrial Lane, Torrington, CT 06790, (860) 482-1010, info.ims.ca/18359-253