What are the differences between injection-molded and rotomolded plastic trash cans in terms of durability?

When choosing a plastic trash can for outdoor use, durability is a critical factor. Two popular manufacturing methods—injection molding and rotomolding—produce trash cans with distinct characteristics. Here’s a breakdown of their differences in durability:

1. Material Strength:

- Injection-molded trash cans are made by injecting molten plastic into a mold under high pressure. This results in a rigid, lightweight structure but may develop stress points over time, leading to cracks.

- Rotomolded trash cans are created by rotating a mold while heating the plastic, ensuring even distribution. This produces a thicker, seamless design with superior impact resistance, making them less prone to cracking.

2. Weather Resistance:

- Injection-molded bins can warp under extreme temperatures due to their thinner walls.

- Rotomolded bins excel in harsh weather, as their uniform thickness prevents warping and UV degradation.

3. Longevity:

- Injection-molded cans are cost-effective but may need replacement sooner, especially in high-traffic areas.

- Rotomolded cans, though pricier, last longer due to their robust construction, ideal for commercial or heavy-duty use.

In summary, rotomolded trash cans outperform injection-molded ones in durability, while the latter offers a budget-friendly option for lighter use. Choose based on your needs and environment.