Foam-filled stroller tires — including solid, closed-cell injection molded foam tires — eliminate flats, deflation, and pump maintenance entirely. Meanwhile, air-filled pneumatic tires trade that reliability for a slightly softer ride at a lower per-unit material cost. For OEM designers, the decision usually comes down to warranty exposure, assembly complexity, and how the product will actually be used, not ride feel alone.
Injection Molding vs. Compression Molding for EVA Foam: The Real Tradeoffs
Product developers choose injection molded foam over compression molded foam when a part needs true 3D geometry, tough durability,, or high-volume repeatability that compression molding’s flat-sheet process can’t match. Compression molding still has a place for simple slab shapes on tight budgets, but the moment a design calls for undercuts, deep texture, non-toxic certification, or consistent cushioning at scale, injection molded foam is the process built to deliver it.