Baltimore Innovations

A common problem associated with the production of polyurethane potting compounds is the formation of carbon dioxide bubbles within the polymer. These bubbles look unsightly, and they also lower the mechanical strength of the compound, leading to component failure, due to moisture ingress.To solve this problem, manufacturers of PU potting compounds typically use a Zeolite Powder such as 3A SUPERSIV, to absorb any water that may be present in the MDI, Polyol or filler components. Once this water has been dealt-with, the remaining raw materials will react with each other, to form a bubble-free potting compound.For those manufacturers who do not have the processing machinery required for the dispersion of fine powders into liquids, there is an alternative product which they can use called 3A SUPERSIV Paste. This is a pre-blended liquid, that manufacturers can just pour-in to their formulation. It’s simple to handle, and it mixes into polymers with create ease.

For the last 17 years, I have headed-up the Baltimore’s Zeolite Powder Team. In that time, our team has helped thousands of polymer manufacturers. The majority of questions that we receive are quite similar …so, with that in mind, please find below a series of Frequently Asked Questions that might help you.

A common problem associated with the production of electrical potting compounds is the formation of CO2 bubbles within the formula. These bubbles look unattractive, and they also lower the strength of the potting compound, which can lead to electrical component failure – as a result of moisture ingress.