Trusted by 2,000+ boaters and pros
“Smells amazing and leaves a slick, glossy finish. Can’t wait to hit the water!” – Jenna K
SiO2 Boat Soap
SiO2 Boat Soap
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Get a mirror-like shine that lasts
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Rinse & dry faster with water beading
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Defend against UV and salt damage
Limited Time Deal!
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Unleash the ultimate shine and protection for your boat with our premium SiO2 Boat Soap. This pH-neutral formula gently washes away dirt, grime, and salt residue while leaving behind a protective layer of SiO2 (silicon dioxide). This advanced technology delivers exceptional benefits:
- Brilliant, High Gloss Finish: Witness a mirror-like shine that enhances your boat's beauty for extended periods.
- Superior Water Repellency: Experience the satisfaction of water beading up and rolling right off, making rinsing and drying a breeze.
- Long-Lasting Protection: Our SiO2 formula forms a durable barrier that shields your boat's surface from harsh elements, UV rays, and environmental contaminants.
- Safe for All Surfaces: The gentle, pH-neutral formula is safe for use on gelcoat, paint,fiberglass, metal, vinyl, and rubber.
SiO2 Boat Soap: The perfect formula to keep your boat looking showroom fresh, wash after wash.
- Easy to use
- Safe for washing in direct sunlight
- Enhances watercraft colors
- Smells like Pina-Colada!
- Spray It On: Apply directly to salt-covered surfaces — or flush through your engine.
- Let It Sit: Wait 2–5 minutes while the formula dissolves salt buildup.
- Rinse or Wipe Clean: Wash it off with fresh water or wipe with a cloth. That’s it.
- After boating, jet skiing, or fishing in saltwater
- Flushing outboard and inboard marine engines
- Cleaning trailers and wheel wells exposed to winter road salt
- Maintaining reels, rods, dive gear, and underwater camera equipment
- Protecting cars, trucks, RVs, ATVs, and off-road vehicles
Is this safe for all surfaces?
Yes! Our formula is safe to use on fiberglass, gelcoat, painted surfaces, metal, chrome, plastic, rubber, and vinyl. It’s non-abrasive and leaves no residue behind.
Can I use this on my boat engine?
Absolutely. Cancel The Salt is engine-safe and designed for use in marine engine flush systems. It helps dissolve internal salt deposits, which can boost performance and extend engine life.
Do I need to scrub the salt off?
Nope. Just spray it on, let it sit for a few minutes, and rinse or wipe clean. The chemistry does the heavy lifting — no harsh scrubbing required.
Does it leave a coating or residue?
It leaves behind an invisible protective barrier that helps repel moisture and prevent salt from sticking again — but it won’t leave any greasy film or buildup.
Can I use it on my vehicle?
Yes — it works great for removing road salt from cars, trucks, trailers, and underbodies. It’s safe for paint and chrome, and helps prevent rust and corrosion.
How often should I use it?
After every saltwater outing or salty road exposure is ideal. For best results, use it as part of your regular maintenance routine — especially before storage.
Will it harm decals, wraps, or wax?
No. It’s designed to be gentle on coatings while still being tough on salt. Always test on a small area if you’re unsure, but most wraps, waxes, and decals are unaffected.
Is it made in the USA?
Yes — we proudly formulate and produce our products in the USA.
Fiberglass, chrome, gelcoat, plastic, rubber, vinyl, paint, and metal — even engine parts.
Formulated to be non-toxic, non-abrasive, and non-corrosive. No harsh scrubbing needed.





SiO2 Boat Soap
Couldn't load pickup availability
1st Due protects 2,000+ boats, cars & crews
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Mike B.
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Emily T.
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Tyler G.
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Kevin R.
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Steven H.

Engineered for Shine & Protection
Optimized rise, flare, backsweep and compact drops for superior handling on any terrain.
Powerful Salt Removal & Defense
Cleans away salt from boats, cars, and gear.
Full-Boat Protection
Safe for fiberglass, metal, vinyl, rubber & more.
Restore Shine, Fast
Lifts dull salt haze and brings clarity back.
Engine-Flush Friendly
Formulated for internal use without damage.
This stuff cleans my boat better than regular “name brand” products and at a much lower price. This stuff is awesome and will be buying more when I run out!