● Common Question: Many people wonder why PE pipes, which are produced from
Differences Between White, Black, and Colored PE Pipes
● UV Protection:
● Black PE Pipes:
■ Black masterbatch (color masterbatch) is added during production to prevent ultraviolet (UV) light from breaking down the polyethylene molecular chains.
■ The black color significantly extends the pipe’s service life by making it more resistant to aging and UV radiation.
■ Typically, 1%-3% of black masterbatch is added depending on production processes and technical requirements.
● White PE Pipes:
■ Previously common, especially for deeply buried applications where UV exposure isn’t a concern.
■ White pipes do not require additional color masterbatch.
■ However, white pipes can suffer from molecular fatigue and aging when exposed to sunlight, and they have a slight translucency that allows light to penetrate, potentially causing algae and microorganisms to grow inside, affecting water quality.
● Colored PE Pipes:
■ Customizable for different purposes and aesthetic preferences.
■ Zibo Dingchang Xinlong Plastic Technology Co., Ltd. can produce multi-layer pipes with different colors for specific customer needs.
Technological Advancements
● 2018 Standard Update:
● Black mixed materials started entering the market, enhancing the physical properties of PE pipes beyond the traditional white plus black process.
● Zibo Dingchang Xinlong Plastic Technology Co., Ltd. has pioneered the use of nanotechnology and silver-ion-based antibacterial features to develop advanced PE pipes for better water quality preservation.
Custom Pipe Production
● Customization Options:
● Any color can be customized based on specific requirements.
● Pipes with multiple color layers can be produced to meet particular needs,such as pipes with blue outer layers, white inner layers, and black middle layers.
● Zibo Dingchang Xinlong Plastic Technology Co., Ltd. offers personalized products for unique customer requirements.
Key Considerations for Pipe Selection
● Outdoor Use:
● Black PE Pipes:
■ Essential for outdoor applications due to better resistance to UV rays and physical impact.
■ Protects against sun exposure and potential damage, ensuring a longer lifespan.
● White PE Pipes:
■ Better suited for environments where UV exposure is minimal or non-existent.
■ White pipes may require a dark-colored protective outer layer to prevent sunlight penetration and extend their lifespan.
Industry Trends and Applications
● PE Pipe Characteristics:
● Hygiene:
■ PE pipes are non-toxic, contain no metal additives, and do not support bacterial growth or scaling.
■ Ideal for drinking water supply, as they eliminate the risk of secondary water pollution.
● Durability:
■ PE pipes have a smooth inner wall with low friction, high toughness,impact resistance, and excellent seismic performance.
■ They can withstand ground settlement without compromising safety.
■ PE pipes are highly resistant to aging, with a lifespan that exceeds traditional metal and PVC pipes, lasting up to 50 years under normal conditions.
● Broadening Applications:
● PE pipes are increasingly used in various applications, including:
■ Water supply and drainage
■ Fire protection
■ Farmland irrigation
■ Electrical conduit piping
■ Communication systems
■ Sewage and drainage systems
PE pipes have largely replaced older materials like cast iron and PVC due to their superior properties.
