Ordinary PVC pipes are sensitive to ultraviolet rays. Ordinary PVC pipes are prone to aging when exposed to sunlight for a long time. This is because PVC materials are easily degraded under the action of light, heat and oxygen, resulting in a decrease in material performance. In specially treated PVC pipes, such as uv resistant PVC pipe, they have good anti-ultraviolet properties and can be used outdoors without aging and discoloration.

Is there a difference between ordinary PVC pipes and anti-ultraviolet PVC pipes?
Ordinary PVC pipes are different from anti-ultraviolet PVC pipes. Anti-ultraviolet PVC pipes are specially treated during the production process to improve their weather resistance, so that they can be used in outdoor environments for a longer time without aging.
Ordinary PVC pipes are made of sanitary polyvinyl chloride (PVC) resin as the main raw material, with appropriate amounts of stabilizers, lubricants, fillers, color enhancers, etc., and are molded by plastic extruders and injection molding machines. They have excellent physical and chemical properties and chemical corrosion resistance.
Anti-ultraviolet agents are added to anti-ultraviolet PVC pipes during the production process to improve their weather resistance, so that they can resist the damage of ultraviolet rays in outdoor environments and extend their service life. Anti-ultraviolet PVC pipes usually have a longer service life. Ordinary PVC pipes will gradually age due to ultraviolet radiation during outdoor use, affecting their performance and appearance. However, anti-ultraviolet PVC pipes are specially treated to last longer in outdoor environments without aging. Their service life can reach more than 5 years, or even longer.

How to make PVC pipes UV-resistant?
The UV resistance of PVC pipes is mainly reflected by their performance under sunlight. Ordinary plastic pipes will age to varying degrees under sunlight.
The UV resistance of PVC pipes is mainly due to the presence of chlorine in its molecular structure, which makes PVC pipes resistant to UV damage to a certain extent. However, PVC pipes are not as UV-resistant as some other materials, such as PU materials, which will not fade or deteriorate after long-term exposure to sunlight.
In order to make PVC pipes UV-resistant, you can apply radiation-proof paint, sunscreen foam, or wrap protective materials such as aluminum foil tape on the PVC pipes. These methods can effectively prevent sun exposure and protect PVC pipes from UV damage.
The specific steps are as follows:
1. Apply radiation-proof paint: This paint can effectively prevent sun exposure and play a protective role.
2. Use sunscreen foam: Apply a layer of darker sunscreen foam, especially black foam, which can effectively block sunlight.
3. Wrap protective material: You can wrap a layer of protective material on the surface of the PVC pipe to avoid high temperature interference, or use lightweight aluminum foil tape, which has anti-aging and ultraviolet reflection functions.

Application
In practical applications, PVC pipes are widely used in construction projects, municipal projects, water conservancy projects and other fields as water supply pipes, drainage pipes, electrical line protection pipes, etc. Due to its advantages of light weight, easy installation and affordable price, PVC pipes have been widely used in these fields.