Foam-Covered Cotton Cleanroom SwabsHigh-sorption combo swabs for gentle cleaning in hard-to-reach areas.Foam-covered cotton cleanroom swabs combine an open-cell polyurethane foam exterior with an internal USP-grade cotton core to deliver a soft, non-abrasive swab with boosted absorbency. The foam surface provides a fiber-free contact face and cushioning for delicate parts, while the cotton bud adds structure and extra sorption—so residues and liquids are picked up quickly without scratching. These swabs are widely used for precision cleaning of surfaces and recessed areas that wipes can’t reach, including intersecting joints, small components, and tooling features. The high-porosity foam (typically ~100 PPI) retains solvents like IPA or acetone and releases them in a controlled way for spot cleaning, solution application, and removal of excess materials. Browse foam-covered cotton swabs below to choose the right head size and handle style for high-absorbency, surface-safe cleaning in cleanrooms and controlled laboratories. |