Metal Adhesive requires no primers.
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Press Release Summary:
Metal Welder II 2-part, 10:1 methacrylate adhesive bonds metal to other metals or to dissimilar substrates. Mixed and dispensed from manual or pneumatic dispensers with static mixing nozzles, it attains functional cure in 2-4 hours at room temperature. Load-bearing bonds withstand service temperatures from -40 to 250°F and resist glycols, motor oil, mineral spirits, and gasoline. Thixotropic gel with viscosity of 90,000 cps, cures to tensile shear strength of 2,520 psi.
Original Press Release:
Metal Adhesive has Long Working Time, Needs No Primers
DANVERS, MA - Metal Welder II is a two-part, 10:1 methacrylate adhesive formulated for structural bonding of metal to other metals or to dissimilar substrates such as thermoplastics or composites. With a working time of 14-16 minutes, it is ideal for the assembly of signs, appliances, furniture, consumer
electronics, and other OEM products. Mixed as dispensed from hand-held manual or pneumatic dispensers with static mixing nozzles, it attains functional cure in 2-4 hours at room temperature. Metal Welder II requires no primers and produces permanent, load-bearing bonds that withstand service temperatures from -40° to 250° F and resist glycols, motor oil, mineral spirits, and gasoline. A thixotropic gel (viscosity of 90,000 cps) with low odor and low VOC emissions, it cures to a tensile shear strength of 2520 psi (as tested on grit-blasted steel with a bond-line thickness of 0.020"). Tensile elongation is 50-75%. Impact resistance is 20 ft-lb/in².
Metal Welder II can be used in place of mechanical fasteners. It is particularly useful for bonding thin metal panels in applications where welding would produce aesthetically unacceptable dimpling or scorching. Because it distributes stresses over the entire length of the bond line instead of concentrating them at rivets or screws, Metal Welder II produces stronger bonds and prevents the loosening and leaking that can occur when fastener holes expand due to vibration or flexing. By eliminating fasteners, Metal Welder II also eliminates the time required to drill or punch holes. And, because rivets or screws are usually visible on the finished product, the adhesive allows for a more pleasing appearance.
When joining dissimilar metals, Metal Welder II provides yet another advantage over welding and fasteners. Because the adhesive keeps the two metals from touching, it prevents electrolysis, a common cause of corrosion. For optimum performance, Metal Welder II contains tiny glass beads designed to maintain a layer of adhesive at least 0.030" thick between the surfaces to be bonded.
For more information, contact David Bongiorni, Market Development Manager, Devcon, 30 Endicott Street, Danvers, MA 01923, Toll-Free: 1-800-933-8266, TEL: (978) 777-1100, FAX: (978) 774-0516, www.devcon.com.
