Premium Quality High Performance Super-Concentrate Formula. Superb De-Icing (Used neat Minus 36 Degrees Centigrade). Built in Anti-Re-Icing properties (Prevents Rapid Evaporation from Screen Surface) Smoother Wiper Action Smear Free Can be used all year round. Safe on Sceen Rubber and Seals (Rubber around window screen). !!<>!!Used Neat Temperature down to -36 Degrees Centigrade!!<>!! !!<>!!Used 1:1 with water Temperature to -18 Degrees Centigrade!!<>!! !!<>!!Used 1:2 with water Temperature to -12 Degrees Centigrade!!<>!! !!<>!!Used 1:3 with water Temperature to -7 Degrees Centigrade !!<>!!