evenly, to prevent clogged hoses and nozzles due to an unwanted reaction. If a reactive PUR hot melt adhesive has been processed, the system should be cleaned before [...] corresponding Technical Data Sheets. Reservoirs In general, reservoirs for reactive hot melt adhesives should always be blanketed with inert gas to prevent an [...] sheets. Safety Remarks PUR hot melt adhesives contain isocyanate groups as reactive component. Isocyanate vapours may be released at higher adhesive temperatures
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