Question: We are doing final testing on a glycol-free, acrylic emulsion adhesive for the art materials market. To permit shipping in freezing temperatures, the product has been formulated to be freeze/thaw stable. However, we are having trouble testing for freeze/thaw stability.
Original testing was done on 20-g samples, but we have found that testing 20 g is not predictive of the freeze/thaw stability of larger package sizes. We are currently testing quarts and gallons; however, 5-gal pails and 55-gal drums become too problematic to actually test due to their size. Is there some volume that, when tested, will be predictive of the stability of all package sizes?
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