This premium BLACK PDR glue is awesome and works year-round, and has great adhesion, works best 50 to 85 degrees this stuff pulls fantastic. I use this glue and get great results on cooler panels. Please educate yourself on using glue pulling before purchase. This Blend was developed for the professional Pdr Technician. This glue blend pulls up to 30% harder than other leading brands. this is also referred to as Rhino PDR WINTER BLACK! I do not recommend using this glue in the heat of direct sunlight. If you are using for hail in an indoor climate-controlled building this is your glue.