Technical Articles

Drain Clip Comparison

Drain Clip Comparison: Duranka Leads in Durability and Performance

In solar panel systems, draining accumulated water from the panel surface is essential for maintaining both performance and longevity. Drain clips that handle this task vary greatly in quality depending on the material and additives used. Below is a comparison of three commonly used drain clip types, highlighting the superior features of our Duranka-branded product.


1. Standard Polypropylene (PP) Drain Clip

  • Material: Polypropylene
  • Advantages: Low cost, easy to produce
  • Disadvantages: Poor UV resistance, becomes brittle over time in outdoor environments, lacks antistatic properties.

While PP drain clips offer a short-term solution, they are not ideal for long-term outdoor use due to their tendency to deform or crack under UV exposure.


2. Polycarbonate (PC) Drain Clip

  • Material: Polycarbonate
  • Advantages: High impact resistance, visually appealing
  • Disadvantages: May deform under high temperatures, usually lacks fiberglass reinforcement, limited UV resistance unless specifically treated.

Polycarbonate drain clips are often chosen for their appearance and impact strength, but they can suffer from structural issues in high-temperature or long-term outdoor conditions.


Duranka PA66 Drain Clip: Superior Material and Engineering

The Duranka drain clip is manufactured from high-performance PA66 (polyamide 66) and is enhanced with key additives to ensure superior performance:

  • Fiberglass Reinforcement: Provides excellent mechanical strength and thermal stability.
  • UV Stabilizer: Offers strong resistance against sun exposure, ensuring long-lasting durability in outdoor environments.
  • Antistatic Additive: Reduces dust and dirt buildup, helping keep panel surfaces cleaner for longer.

The Duranka drain clip is not just a piece of plastic—it’s an engineered component designed to enhance the reliability and longevity of your solar system. It holds its shape even in extreme conditions and adds long-term value to your installation.

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