303 30204 Multi-Surface Cleaner 32 oz | Heavy-Duty Marine Vinyl, Fabric & Upholstery Cleaner

303 30204 Multi-Surface Cleaner 32 oz — Heavy-Duty Marine Cleaner for Vinyl, Fabric, Upholstery & All Boat Surfaces

303 Multi-Surface Cleaner is a marine-formulated all-surface cleaner designed to remove soaked-in, heavy stains from marine vinyl, fabric upholstery, and all hard and soft surfaces from bow to stern. The formula uses robust cleaning agents engineered to counteract the specific damaging conditions of salt water, sun exposure, and sand contamination that accelerate staining and surface discoloration on boats. Soaked-in stains disappear within minutes, discolored surfaces are brightened and rejuvenated, and the cleaner leaves no greasy residue behind. Safe for all types of marine upholstery and vinyl, and effective across the full range of boat surfaces — one product for the entire vessel.

Part Specifications

• Part Number: 303-30204
• Size: 32 oz
• Formulation: Marine-specific multi-surface cleaner
• Stain Removal: Heavy, soaked-in stains on vinyl and fabric
• Residue: No greasy residue after cleaning
• Safe Surfaces: Marine vinyl, fabric upholstery, hard surfaces, gel coat, fiberglass, plastic trim, rubber
• Application: Spray on, agitate as needed, wipe clean

Compatible Surfaces

303 Multi-Surface Cleaner is designed for bow-to-stern use on all marine surfaces, including vinyl seating and upholstery, marine canvas and fabric, gel coat and fiberglass decks and hulls, plastic trim and instrument panels, rubber gaskets and seals, and non-skid deck surfaces. The marine formulation is optimized for the combination of salt, UV, moisture, and biological staining (mildew, algae, fish residue) that accumulates on boats and is not adequately addressed by general-purpose household cleaners. Not formulated for use on painted soft metals (aluminum, chrome) without testing on an inconspicuous area first.

Application Notes

• Spray directly onto the soiled surface and allow the cleaner to dwell for 1–3 minutes on heavy stains before agitating — dwell time significantly improves soaked-in stain removal
• Agitate with a soft brush, sponge, or microfiber cloth — use a soft-bristle brush on fabric and upholstery, avoid stiff brushes on smooth vinyl which can scuff the surface
• Wipe clean with a damp cloth and allow to dry — no rinsing required for light cleaning; rinse with fresh water for heavy contamination or after use in bilge or engine areas
• For soaked-in mildew stains on fabric or canvas, apply and allow a longer dwell time of 3–5 minutes before agitating
• Do not allow the cleaner to dry on the surface before wiping — apply in manageable sections in direct sun or high heat
• After cleaning vinyl or upholstery, follow with 303 Aerospace Protectant (303-30305/30306/30340/30370) to restore UV protection to the cleaned surface

Additional Information

• Vendor: 303
• SKU: 303-30204
• Product Type: Boat & Engine Maintenance / Marine Cleaner
• Size: 32 oz
• Country of Origin: USA
• HS Code: 3402.20 (cleaning preparations put up for retail sale — verify for your import classification)

Frequently Asked Questions

Q: What types of stains will 303 Multi-Surface Cleaner remove?
A: Formulated to remove heavy, soaked-in stains including salt residue, fish and bait staining, mildew and mold, sunscreen and lotion residue, fuel and oil drips on exterior surfaces, and general soiling from marine use. Allow 1–5 minutes of dwell time on heavy or set-in stains before agitating for best results.

Q: Is this safe to use on marine vinyl upholstery?
A: Yes — 303 Multi-Surface Cleaner is specifically designed for marine vinyl and upholstery. It removes heavy stains without leaving greasy residue and is safe for all standard marine vinyl materials. After cleaning vinyl, follow with 303 Aerospace Protectant to restore UV protection, as cleaning will remove any previously applied protectant layer.

Q: Can I use this on marine canvas and fabric (bimini tops, cockpit covers)?
A: Yes — the formula is effective on marine canvas and fabric. Apply, allow to dwell, and agitate with a soft-bristle brush for mildew and heavy soiling on canvas. Rinse thoroughly with fresh water after cleaning canvas or fabric and allow to dry fully before storing or covering.

Q: Do I need to rinse the surface after cleaning?
A: For light cleaning on vinyl and hard surfaces, rinsing is not required — wipe clean with a damp cloth. For heavy contamination, mildew treatment on canvas, or use in engine compartments and bilge areas, rinse with fresh water after cleaning and allow to dry.

Q: Should I apply a protectant after using this cleaner?
A: Yes — cleaning removes previously applied UV protectants from vinyl and upholstery surfaces. After cleaning vinyl seating, panels, or trim with 303 Multi-Surface Cleaner, apply 303 Aerospace Protectant (303-30305, 30306, 30340, or 30370) to restore UV protection, prevent fading, and keep the surface conditioned.