No. 40 is perfect for everyone from picture framer, to printers, artists, screenprinters, sign makers and needle trade personnel. It contains no ammonia and no acids. This spray is safe to use in any working environment.

USES: Formula No. 40 is versatile enough to safely be used for camera lenses, glass print cylinders of diazo type, ground glass and glass light tables. It ensures rapid exposures and clean, sharp prints. Also excellent for windows, mirrors and windshields.