Equipment Physics & Laboratory TestingReference #13 · V2.6 Facet Verified
How does injection molding vs rotational molding affect ball flight true-ness?
Core Takeaway: Rotational molded balls have seamless, uniform wall thickness that flies true in wind, while two-piece injection welded balls can develop seam imbalances.
Dink Digest Intelligence DeskVerified 2026-09-20
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Dura Fast 40 outdoor balls are manufactured via rotational casting: liquid polyethylene is poured into a spinning heated spherical mold, creating a single seamless sphere with consistent wall thickness. Franklin X-40 and other balls use two injection-molded hemispheres ultrasonic-welded together. Two-piece balls are more crack-resistant, while rotational seamless balls fly with unmatched precision favored by pro tour circuits.
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category Id:equipment-physics-gear
topic Index:13
verified Year:2026
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equipment-physics-gearballknowledgestandardstesting-labregulation-court