HG window cleaner is a pH-neutral formula that won't harm paint, varnish, or plastics, making it gentle on surfaces and skin. This economical window cleaner is easy to use: simply add 15 ml to half a bucket of lukewarm water. For best results, wash windows in a circular motion. When drying, use a squeegee in overlapping strips and always dry the squeegee with a cloth before applying it to the window. Avoid washing windows in direct sunlight. HG window cleaner is ammonia-free and methylated spirits-free, making it a safe choice for your cleaning needs. One 500 ml bottle is sufficient for at least 35 window washes.