Coatings, Sealants & Adhesives

Proven Moisture Protection

UOP adsorbents, powders and pastes remove moisture to extremely low levels with no unwanted reactions.

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Formulators: avoid degradation

Moisture is the enemy of many coating, sealant, adhesive and elastomeric products, and can come from pigments, fillers or ambient air during production. Isocyanates in polyurethane-based formulations react with moisture, where CO2 generation can cause problems such as blistering and degradation.

UOP activated powders and pastes are proven to help you combat these issues. Our pastes are a mixture of molecular sieves in castor oil, which simplifies blending with the polyol and other hygroscopic ingredients. The hydrophobic castor oil also dramatically reduces atmospheric moisture pick-up during handling and mixing.

UOP is the world’s largest supplier of molecular sieves for formulating and compounding. Our MOLSIV 3A, 4A and 5A adsorbent powders and UOP T and L activated powders remove moisture to extremely low levels with no unwanted reactions. They are used at one to five percent by weight, depending on the starting water concentration in the polyol, pigments and fillers.

Contact us for more detailed technical information or support on our adsorbents for formulators.

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