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Polyurethane Dehydration
Activated zeolite powders/ Molecular Sieve Powders are widely used in 1K- or 2K- polyurethane systems to prevent the formation of foam and bubbles by suppressing the reaction of free water with isocyanate group.

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> One of problems Polyurethane adhesives is the moisture. If not removed, moisture will react with the isocyanate
constituent to form gaseous carbon:
RNCO + H2O → RNH2 + CO2
>Activated zeolite powders/ molecular sieve powders are highly effective, non-toxic moisture scavengers for 1K- and 2K-Polyurethane systems, and prevent the formation of foam and bubbles by suppressing the reaction of free water with the isocyanate group.
>At the same time, activated zeolite powders/ molecular sieves powders are well compatible with commonly used polyols, polyethers and isocyanates. They are easily dispersible and especially stabilized to ensure sufficiently long hardening times.
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Related product:
Activated zeolite powders, Molecular sieve powders