Deep Cleans Without Damage

Harsh detergents strip natural oils and cause early wear. 303’s gentle but effective formula penetrates dirt, grease, and environmental buildup while maintaining the integrity of fabric, vinyl, or canvas.

Restores Natural Look

Regular use revives the rich color and texture of your tonneau or convertible top, leaving it looking factory-fresh. No chalky residues, no greasy shine just a natural, clean finish.

UV & Weather Protection

Paired with 303 Fabric Guard or Aerospace Protectant, this cleaner helps prevent sun fading, cracking, and water damage. It’s the first step in long term protection.

Versatile Formula

Safe for:

• Soft convertible tops (fabric & vinyl)
• Pickup truck tonneau covers
• Boat covers and bimini tops
• Jeep soft tops & RV awnings

Easy to Use

Simply spray, agitate with a soft brush, and rinse no heavy scrubbing required. Even tough stains like bird droppings, oil, and tree sap lift away easily.

Why Choose 303 Over Competitors?

• 303 vs Armor All: Armor All cleaners may leave behind a shiny residue, while 303 delivers a natural, streak-free finish.
• 303 vs Meguiar’s: Meguiar’s is popular for paint care, but 303 specializes in fabric and vinyl surface cleaning.
• 303 vs Mothers & Turtle Wax: These brands often require multiple products for different surfaces. 303 is versatile and safe for both fabric and vinyl.

With 303, you’re investing in specialized care, trusted by automotive and marine professionals worldwide.

Follow these clear, practical steps to clean and prep fabric, vinyl or canvas convertible tops and tonneau covers safely and effectively.

Tools & supplies

• 303 Tonneau Cover & Convertible Top Cleaner
• Soft bristle brush (automotive upholstery brush)
• Low pressure garden hose or pressure washer on a low setting
• Several clean microfiber towels
• Bucket of clean water (optional)
• 303 Fabric Guard (for fabric tops) or 303 Aerospace Protectant (for vinyl) for aftercare

Step 1 Prep & test (2–3 minutes)

Remove loose debris, leaves and dust from the top. Do a small spot test in an inconspicuous area to confirm colorfastness and compatibility.

Step 2 Rinse the top (2–5 minutes)

Rinse the whole surface with clean water to lift grit and prevent scratching during cleaning. Focus seams and edges to remove trapped dirt.

Step 3 Apply the cleaner (cover evenly)

Spray 303 Cleaner evenly over a small working area (about 2×2 ft). For heavy spots, apply a little more directly on the stain. Avoid over-saturating seams.

Step 4 Agitate gently (1–3 minutes per area)

Use a soft-bristle brush to work the cleaner into the fabric or vinyl with light circular motions. Focus on stitching, seams, and stained areas no need to scrub aggressively.

Step 5 Dwell if needed (30–60 seconds)

For stubborn stains, let the cleaner sit briefly to loosen soil, then re agitate gently. Don’t allow cleaners to dry on the surface.

Step 6 Rinse thoroughly (2–5 minutes)

Rinse all cleaner and lifted dirt away with low-pressure water until the runoff is clear. Ensure no residue remains residue attracts grime later.

Step 7 Inspect & repeat (as required)

Check the cleaned patch; repeat Steps 3–6 on stubborn spots. Work in sections so you can fully rinse and inspect each area.

Step 8 Dry completely (hours)

Allow the top to air dry fully before folding or applying any protectant. For fabric tops, full drying is essential to avoid mildew.

Step 9 Protect for longevity

After dry: apply 303 Fabric Guard to fabric tops or 303 Aerospace Protectant to vinyl tops per product directions to add water repellency and UV protection. This seals your cleaning work and extends life.

Quick pro tips

• Always clean in the shade to prevent streaking and rapid drying.
• Use separate towels/brushes for heavily soiled areas to avoid cross-contamination.
• Remove bird droppings or sap ASAP they become harder to remove if left to bake in sun.
• Avoid high-pressure washing on seams or near stitching to prevent damage.

Maintenance schedule

• Light maintenance: every 4–6 weeks.
• Heavy exposure (sun/boats/trees): every 2–4 weeks.
• Reapply protectant after every deep clean for best UV and water resistance.

Pro Tips for Best Results

• Always rinse first: Remove loose dirt and dust before spraying cleaner.
• Use a soft brush: Agitate in circular motions for deep fabric cleaning.
• Work in the shade: Prevents streaking and premature drying.
• Pair with 303 Fabric Guard or Aerospace Protectant: For long-term UV and water resistance.
• Regular maintenance: Clean every 4–6 weeks, more often in harsh climates.