thanks for the removable conformal coating potting compound info.. I found their USA website (parent company is in Italy).. they have several products, here are a couple of them:
magic rubber, thermal rated to 200C, looks like what Zebralight uses.
techno-gelgum, less expensive, also rated to 200C
afaik these conformal coatings are two part polymers that cure into a removable elastic silicone like consistency
not the same as non removable hard potting that malkoff uses. (one of the roles of hard potting is to conceal proprietary components)