Anti-climb paint (also known as non-drying paint, anti-intruder paint, anti-vandal grease) is a class of paint consisting of a thick oily coating that is applied with a stiff brush, trowel or by hand using a protective glove. In appearance it is similar to smooth gloss paint when applied but it remains slippery for a minimum of three years thereby hindering an intruder from gaining a foothold.
It is used to prevent climbing on objects such as lamp posts, walls and fences. It owes its effectiveness to the fact that it is based on a non-drying oil and keeps the surface greasy and slippery. As an additional advantage, it leaves its mark on the person touching it and hence makes it possible for intruders to be identified.
Anti-climb paint is often used to deter burglars seeking to enter a building by climbing up to a higher entry point, such as a window on an upper floor. [1]
Anti-climb paint continues to work in hot or cold weather conditions, adhering to the surfaces to which it is applied.
It can be used on most building materials. It is particularly effective in preventing climbing on walls, parapets, boundary fences, down pipes, lamp standards and roofs.
The paint's outer surface may appear to be dry, but attempting to climb over it will reveal the soft paint underneath. [1] It has an effective lifetime of around three years, after which a fresh coat is usually recommended.
It cannot be easily washed off and is resistant to removal by a variety of chemicals. [2]
To keep the general public from being affected by the paint, it is usually applied above a certain height on the object being painted. Typically it is applied from a height of 8 ft / 2.4 meters above the ground. The paint is most effective when an intruder has to climb several feet before being stopped by a band of anti-climb paint.
It was developed by Camrex Paints in the early 1960s. [2]
Paint is any pigmented liquid, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film. It is most commonly used to protect, color and primer, or provide texture. Paint can be made in many colors—and in many different types. Paint is typically stored, sold, and applied as a liquid, but most types dry into a solid. Most paints are either oil-based or water-based and each has distinct characteristics. For one, it is illegal in most municipalities to discard oil-based paint down household drains or sewers. Clean-up solvents are also different for water-based paint than they are for oil-based paint. Water-based paints and oil-based paints will cure differently based on the outside ambient temperature of the object being painted. Usually, the object being painted must be over 10 °C (50 °F), although some manufacturers of external paints/primers claim they can be applied when temperatures are as low as 2 °C (35 °F).
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