The Rust-Oleum Specialty Mirror Spray is an aerosol coating that utilizes high-leafing aluminum pigments suspended in a fast-evaporating solvent. This 6 oz canister is designed for decorative applications where a "liquid metal" finish is desired on the reverse side of clear glass. Specifications indicate a tack-free drying time of 5 to 10 minutes, which is the critical window for the microscopic particles to align and create a reflective surface.
The resulting film is fragile and relies on a mechanical bond with the glass, meaning it should not be subjected to direct friction or touch once applied. To protect the finish, it is designed to be seen through the glass from the opposite side. Practical build quality insights include:
- Suitability for glass and some acrylics, though it can react with lower-grade plastics.
- High sensitivity to humidity; use in environments with less than 50% relative humidity to avoid clouding.
- Rapid evaporation rate to minimize run-off on vertical panes.
Because the solvent carrier is aggressive, it is important to ensure the substrate is free of finger oils, which can cause "fish-eye" imperfections in the finish. This specialty paint offers a higher level of reflectivity than standard metallic sprays but requires careful environmental control during application.
For a similar reflective project that might require a different propellant density, the Krylon Looking Glass Spray is another option for hobbyists.
You can find more decorative and maintenance coatings for your home projects in the glass and mirror sprays section.
