Meler PS20, Instruction Manual, Page: 79 / 100

TECHNICAL CHARACTERISTICS
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MA-5130-GBR PS20 NON STOP DRUM UNLOADER INHIBITION MANUAL
Air drying system for PUR adhesives
Polyurethane-based reactive adhesives, known as P.U.R. (reactive
polyurethanes), require a completely dry environment before they can be
applied, since when they come in contact with atmospheric humidity, they
reticulate, hardening quickly.
The PS20 Non-Stop melting equipment ensures a dry environment thanks
to the addition of an air-drying system to these models, which provides a
level of dehumidification above 99.98%. This guarantees that the adhesive is
preserved without premature reticulations inside the applicator unit.