We bought an enormous package of roof sealants
. In freezing Maryland weather, we learned we couldn't keep the hoses within the van. We heated the putty bottles ahead of the radiators and took them out into the van to complete. some bottles froze hard. We placed an excellent hot container of the predicament in large ziplock bags to loosen the sealant. It worked. Then we found that a ziplock bag had a hole, a mastic tube was damaged because of a faulty ziplock bag. We decide to cut the pipes with the blades in warmer temperatures to finish the projects with the roof sealant.