Why Can Welping HDPE Pipe Fittings Be Stored Outdoors?

Many people worry that plastic fittings will age or crack if left under the sun or rain. At Welping, our HDPE pipe fittings are built to withstand outdoor conditions without losing strength or reliability.

The secret lies in the raw materials. We use high-quality high density polyethylene (HDPE) resin, including premium imported black resin. Every batch is mixed with UV-resistant masterbatch, which protects the fittings from sunlight and slows down oxidation. This ensures durability even when exposed to wind, rain, and temperature changes.

Our fittings are produced by precise injection molding and carefully finished by hand to remove burrs. Unlike some factories that cut costs by adding recycled scraps, Welping insists on using virgin material only. Cheap or recycled fittings often fail within two or three years, but Welping fittings can last for around ten years without leaks or cracks.

That’s why Welping fittings can be safely stored and used outdoors — reliable performance you can count on, rain or shine.

Learn more about Welping pipe fittings [here ➝]