As manufacturers of PTZ and fixed dome cameras, we are frequently asked what to use to clean the polycarbonate bubbles and help shed rain droplets. Some integrators report using Rain-X, Windex, Lemon Pledge, rubbing alcohol etc. that contain chemicals which are not suitable for high quality optical Polycarbonate components. This guide details the recommended method to clean and protect the bubbles.
Acrylic and Polycarbonate are materials that can be used as as dome covers. Whilst Acrylic is more resistant to scratches it is weaker in strength. Polycarbonate in comparison to Acrylic is less resistant to scratches but stronger in strength. In order to meet IK10 rating Polycarbonate is used.
Hanwha Vision cameras are made of a high quality polycarbonate plastic which have great optical qualities and high impact resistance. While polycarbonates are scratch resistant, they are not scratch proof. Applying cleaning and water shedding compounds requires the use of non-scratching microfiber materials as well as products specifically formulated for polycarbonates. All of the products mentioned above may initially appear to clean the bubble and make it rain resistant however all of them will in time degrade the optical performance of the clear polycarbonate material.
Cleaning of dome cover:
Dome cover should be cleaned using a soft cloth (dry or damp).
DO NOT USE cleaning liquids such as detergents or products that contain alcohol, solvents, surfactants or oil constituents as they may damage or deform the dome cover.
For installation in environments with exposure to sand or dust conditions, it is recommended to to removed the sand/dust by means of washing or blowing with compressed air prior to cleaning with a soft cloth.
As per the recommendation in camera manual Important Safety Instructions: