Birchwood Casey's Renewable Firearms Grease is the the future of firearm care and maintenance. Renewalube grease's water resistant formulation immediately penetrates and forms a long lasting bond to metal. Once applied, renewalube grease performs flawlessly at temperature ranging from -40Adeg fahrenheit to 427Adeg fahrenheit. this grease reduces friction four times better than traditional greases and is a usda certified biobased product which means it is non-toxic and biodegradable. FeaturesReduces friction four times better than traditional greasesUsda certified biobased product which means non-toxic and biodegradableWater-resistant formulation immediately penetrates and forms a long-lasting bond to metal