Canvas Juice - Bleach Free Canvas Cleaner

Canvas Juice is a bleach-free, pH-neutral marine canvas cleaner engineered to lift dried dirt, salt, mold staining, mildew, bird droppings, and organic soiling from marine canvas, Bimini tops, cushions, and fabric surfaces. Canvas juice is safe on colored canvas, doesn't breaking down existing water resistance, or degrading the fibers.

Canvas takes a beating on the water. Canvas Juice is how you Clean Without The Damage

HOW TO USE

1. Work in shade on cool canvas. Heat accelerates drying and concentrates product on the surface.
2. Pre-rinse the canvas thoroughly with fresh water. Loosening surface debris lets Canvas Juice reach the stain.
3. Apply Canvas Juice generously - spray or pour directly onto the fabric.
4. Dwell 3–5 minutes. Keep the canvas wet during dwell - mist with water if needed. Don't rush the rinse.
5. Agitate gently with a soft-bristle brush or clean wash mitt. Do not scrub - agitate.
6. Rinse thoroughly with fresh water until water runs clear.
7. Repeat for stubborn staining. Multiple short applications are more effective than one long dwell.
8. Allow canvas to fully air-dry before covering or folding.

Ready-to-use formula. No dilution required.

🚨 NEVER MIX WITH:

Mixing Cast Off with the following produces toxic chlorine or chloramine gas:

• Acidic cleaners - vinegar, citric acid, lime/scale removers, rust removers, hull cleaners, toilet bowl cleaners
• Ammonia-based cleaners - many glass and surface cleaners contain ammonia
• Other Mad Soaps products - until you confirm compatibility
• Pool chemicals
• Any "natural" or unlabeled cleaning product of unknown chemistry

If you smell a sharp, sour, or chlorine-like odor more intense than the product itself - STOP - ventilate, and leave the area. Rinse the surface with large amounts of fresh water if possible

✅ Safe to Use On

• Marine canvas covers - bimini tops, dodgers, enclosures
• Boat cushion covers and canvas/vinyl upholstery
• Sail covers and cockpit covers
• Acrylic canvas - Sunbrella and similar
• Polypropylene and polyester canvas
• Synthetic fabric Biminis and covers - treated and untreated
• Canvas awnings and shade sails
• RV awnings and slide-out covers
• Boat carpet and cockpit mats - test first

❌ Do NOT Use On

• Leather upholstery - water-based formula will over-wet and damage leather, use Captain Conditioner to keep that hide supple
• Natural fiber / untreated cotton duck canvas - test in an inconspicuous area first
• Waxed or ceramic-coated hard surfaces - not designed for hard surface application
• Electronic components, displays, and navigation equipment
• Wood, teak, or wood veneer - will soak in, raise grain, and cause discoloration
• Metal surfaces - not designed for hard surface cleaning
• Food-contact surfaces
• Plants, lawn, or sensitive landscaping

Rule of thumb: If color matters or it's metal, mask it, move it, or skip it.

PRO TIPS FROM THE FIELD

• Pre-rinse before applying. Surface dirt is a barrier — rinse it off so Canvas Juice goes straight to the stain.
• Keep it wet during dwell. On dry, hot canvas, the product concentrates before it can work. Mist with water to extend contact time.
• Soft brush only. A stiff brush frays canvas fibers over time. Use a soft-bristle detail brush and let the product do the work.
• For deep mildew staining, dwell up to 10 minutes. Keep misting to maintain a wet surface throughout.
• Multiple short passes beat one long soak. Apply, agitate, rinse, inspect, repeat — staining lifts progressively.
• Dry completely before covering or folding. Trapping moisture in folds is how mildew starts.
• Flood-rinse. Canvas holds product in the weave - rinse until the water runs completely clear.
• For white canvas with heavy mildew that Canvas Juice doesn't fully lift: follow with a diluted Cast Off application — but rinse Canvas Juice fully and let it dry first. Never apply both products simultaneously.