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Place your thoroughly mixed material in the refrigerator (5 to 10ºC) to slow down the cure process and preserve the pot life.  Let the mixture stand in the refrigerator for several hours (depending on pot life, overnight might be a possibility). This will permit bubbles to rise and dissipate (buoyancy) and will also permit dissolved air to diffuse to the surface and equilibrate with the ambient air (diffusion). The main disadvantage of this approach is that it consumes some pot life.  A minor disadvantage (to be aware of) is that once the refrigerated material is brought back to room temperature, care must be taken to prevent condensation of moisture onto the material.  Condensation will occur when the ambient dew point is higher than the refrigeration temperature. In most cases, if the ambient air is actively air-conditioned to 68ºC or below, and the refrigerator is at 5ºC or greater, condensation will not occur.

READ THE BLOG: Polymer Expert Blog: Defeating Bubbles


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Kathleen Skelton

About Kathleen Skelton

Kathleen Skelton, as FOC's Director of Strategic Marketing, utilizes her expertise in business development, online strategy, market planning, digital best practices, standard operating procedure development, and content management. A graduate of Curry College, she holds degrees in Communications and Education, English and Psychology. Kathleen resides outside of Boston, MA with her husband and four children. Follow @KATHLEENSKELTON