22mm Waterproof Spring Push Button Cover

Size: 4.3 cm × 3.9 cm × 1.65 cm (1.69 × 1.54 × 0.65 inches). Constructed from durable, injection-moulded polypropylene (PP) — resistant to abrasion, mild solvents and impact. Central aperture: fixed 22 mm diameter, engineered for friction-fit retention on standard button stems. The internal spring applies gentle, consistent axial force to hold the cover firmly in place while allowing full vertical actuation. This dual-action design prevents both contamination ingress and accidental triggering — critical for compliance with basic machine guarding principles (e.g., BS EN ISO 13857). Seals effectively against airborne dust and incidental water exposure, including condensation, rain-splashed exteriors or wet-hand operation. Deployed across diverse UK settings: factory floor emergency stations, school ICT suite desktops, retail kiosk interfaces, and home-based CNC or 3D printer control boxes — wherever unprotected buttons pose reliability or safety concerns.