I recently ordered a gallon set of resin, the bottles from which for me are difficult to pour (two 1/2 gallon bottles, one of resin and one of hardener). Prior to this set, I had ordered a 16 oz set of a different brand, and each part has about 1/8 or less remaining. Is it possible to fill those smaller bottles with the new resin (part A in part A, part B in part B) or will that alter the effectiveness of each part?? Even if I use up the rest of the prior brand in the smaller bottles first, then fill up those bottles with the new product, I’m unsure if the remnants of the prior brand would ruin the new brand.