When tackling problems such as the removal of (water-generated) CO2 bubbles from Polyurethane formulations, most chemists opt to use molecular sieve, as their moisture-scavenger. This is a proven solution, and it has been used for many years within the Coatings, Sealants, Adhesives and Elastomer industry (also known and the C.A.S.E. Market).
One of the most common Molecular Sieves used in the C.A.S.E. market these days is 3A SUPERSIV Powder. It is popular because it has sufficient quality to be ranked within top group of premium-grade molecular sieves on the market, but it also has a lower price than many of the other top-quality zeolite powders. To put it simply: it offers the best of both worlds.
For those smaller manufacturers who do not (yet) have the equipment necessary for the dispersion of ultra-fine powders into liquids, there is also a sister-product to zeolite powder, called 3A SUPERSIV Paste. This comes in a liquid from, and thus it can be easily dispersed into fluids, such as PU or Polyurea formulations.
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