Posted to News on 3rd Jan 2007, 00:00
Adhesive sealant combines three technologies in one
New hot melt technology from Dow Corning utilises hot melt technology by combining the instant green strength of a pressure sensitive adhesive (psa) with the high performance of a crosslinked silicone sealant. This results in improved productivity, increased production speed and reduced costs. Dow Corning HM-2510 was developed to have a lower viscosity than Dow Corning HM-2500 assembly sealant which allows it to flow into deeper section and achieve longer working time.
Dow Corning says that this development marks a new page in its 50 year history of meeting the needs of the sealants market. Bringing together for the first time silicone, reactive technology and hot melt, the new assembly sealant combines the production benefits of instant adhesion with the reliability of silicone sealants. Instant green strength means that parts can be moved immediately from one processing step to the next.
Because Dow Corning HM-2510 is a silicone sealant and a psa, it offers aggressive, long-lasting adhesion to PVC, aluminum, painted and treated wood, high performance paints, plastics and various other substrates. A very low surface tension means it has excellent wetting characteristics, even on non-polar substrates such as polyethylene or polypropylene. It offers outstanding weather resistance (so no worries about UV light, ozone, acid rain, etc), excellent dielectric properties and broad temperature resistance.
