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The DYKEM 81791 is a red staining layout fluid used to coat metal surfaces before scribing, marking, or machining. Applied to cleaned metal, the fluid dries to a thin, high-contrast film that allows scribes and layout tools to leave crisp, visible lines. This type of layout fluid is a standard consumable in metal fabrication, machining, and tooling shops. The 81791 ships in a 1-gallon bottle, making it suitable for bench use or refilling smaller applicator bottles on the job. At 7 pounds, the container is manageable for shop storage and inventory.
Layout fluid is used wherever precise metal layout work is required prior to cutting, drilling, or grinding. Machinists, tool-and-die makers, millwrights, and maintenance technicians apply it to ferrous and non-ferrous metals before using scribers, dividers, or punches to mark cut lines and hole centers. The 1-gallon size suits shops with moderate to high layout fluid consumption, reducing the frequency of reordering compared to smaller containers.
Designed for general metal layout applications on ferrous and non-ferrous machined or ground surfaces where a staining-type layout fluid is specified.
Apply to clean, dry, degreased metal surfaces for best adhesion and contrast. Allow the fluid to dry fully before scribing. Keep container sealed when not in use to prevent evaporation. Consult the Safety Data Sheet for ventilation and PPE requirements prior to use.
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