The J- B Weld KwikWeld Professional Size Steel Reinforced Epoxy Twin Pack is the perfect solution for making strong, lasting repairs to metal and multiple other surface types. This two-part epoxy cold weld system provides a strong bond that can withstand temperatures up to 300 °F. It creates a protective barrier against rust and corrosion, making it ideal for use in automotive, plumbing, and marine applications. The professional size twin pack contains 10 ounces of epoxy, enough for larger repairs or multiple smaller repairs. FleetPride is your First Click in Heavy Duty .