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==Cement Splicers== | ==Cement Splicers== | ||
[[File:Griswold cement splicer.JPG|right|thumb|300px]] | |||
Cement splicers use a liquid film cement that consists of film base dissolved in a solvent. Typically, the film is cut so that each end overlaps by one perforation, with one side of the overlap falling on a frame line. Cement splices are performed with the emulsion up. The emulsion and binder on the lower layer are scraped off, and the base of the upper layer is abraded to provide a rough surface for the cement to adhere to. Cement is then applied and the two pieces of film are clamped together while the cement cures. Hot splicers are cement splicers that have a built-in heating element to speed up the curing process. | Cement splicers use a liquid film cement that consists of film base dissolved in a solvent. Typically, the film is cut so that each end overlaps by one perforation, with one side of the overlap falling on a frame line. Cement splices are performed with the emulsion up. The emulsion and binder on the lower layer are scraped off, and the base of the upper layer is abraded to provide a rough surface for the cement to adhere to. Cement is then applied and the two pieces of film are clamped together while the cement cures. Hot splicers are cement splicers that have a built-in heating element to speed up the curing process. | ||