Dry film Preservatives provide protection of surfaces against the growth of microorganisms. Temperature, humidity, sunlight accelerate the growth of fungi and algae leading to visible material destruction resulting in a loss of quality. UN-P102A is a nanotechnology based ‘DRY-FILM’ preservative for water based decorative paints. It is a unique non-toxic formulation that has been specially developed keeping in view the need for a safe and environmental friendly paint preservative. UN-P102A is a single product that provides complete microbiological protection for water based paints against algal and fungal spoilage. UN-P102A is a water-based dispersion and excellent in protecting exterior paints for long against microbial growth and UV-degradation. The product has an added property of ‘COLOUR-GUARD’ effect, which helps in retention of the colour of the paint for an extended period of time.