Permanent Hot Melt Adhesives Permanent Hot melt adhesives are 100% solids formulations based on thermoplastic polymers.  They are solid at room temperature and are activated upon heating above their softening point, at which stage they are liquid, and can be applied.  After application, they retain the ability to wet-out the substrate until they solidify.  As the hot melts solidify, they return to a physical state that has structural integrity and can function as an adhesive.  Permanent Hot Melt is applied by extruding, rolling, or spraying and bonding is carried out immediately after application or after reheating the solidified layer. There are a large variety of polymers used in this class of hot melts and includes both natural and synthetic polymers.  The high viscosity and set speed of the hot melt makes it particularly suitable for porous and permeable substrates that otherwise would be more difficult to bond with other adhesive types.     A nice feature of permanent hot melts is that on cooling they very rapidly build up internal strength allowing rapid assembly and further product processing.  Permanent Hot Melts are based on thermoplastic polymers; this means the hot melts can be repeatedly heated to melt and cooled to solidify. This property limits the temperature resistance of hot melt bonds and they also have a tendency to creep when subjected to continuous stress and high temperatures. On the plus side, these hot melt adhesives can be used to create bonded joints that are thermally detachable and can also be re-bonded.  Our Permanent Hot melt Adhesives are used for a wide range of industry applications including:  BookBinding Case/Carton Sealing Direct Mail Graphic Arts Mattress/Bedding Packaging Product Assembly Textiles Wood Working Our Permenant Hot Melt Adhesives Offer the following benefits: Aggressive Bonds - Bonds to a wide range of difficult to Bond, Low energy substrates. Reduced Char - No clogged lines or nozzles and no adhesive buildup in the tank, reduced maintenance costs. Low/No Odor - No smoke, offers a more operator-friendly work environment. No Stringing / Tailing - Reduces downtime. No Angel Hairs or adhesive build-up. Reduces unscheduled maintenance. Increased Mileage - Lowers adhesive usage and costs, depending on application. Reduced viscosity gain - Adhesive runs consistently clean, allowing for precise control of bead size and bead placement. Light in color - Improves package appearance. Clean Machining - High performance. Reduce equipment maintenance and unscheduled downtime. Permanent Hot Melts- EVA, Polyolefin and Polyethylene Based: Below are just a few of our most commonly used permanent hot melts.  We offer hot melts for all substrate types and applications. For more info, please call one of our Adhesive Specialists at  1-800-249-0337  Part #  Applications \ Substrates  Set Speed  Application Temp  Viscosity at 350°F  Form  W200 Case/Carton Sealing, Coated Boards, Plastic, Poly, General Purpose Fast 325-375°F 1200 cps Chips  W201  Coated Boards, Plastic, Poly, UV, Varnish, Foil, Films, Woods, Clay Coated, Flexible Medium,Fast 325-375°F 1000 cps Chips  W202 Difficult Substrates, Polyolefins, ABS, Woods, Metals Plastic, Poly, high tack Slow 325-375°F 5000 cps Chips  W203 High Speed Case/Carton Sealing, Coated Boards, Plastic, Poly, Film, Foil Very Fast 325-375°F 750 cps Chips -Hot Melts are packaged in 25lb & 50lb boxes, 1350lbs /pallet. -Available in Chip or mini-Chip form.