Fiberglass Stain Remover 16 oz
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You have 30 days to request a return. All sale items are final sale.
Fiberglass Stain Remover — 16 oz
Tackle stubborn stains on fiberglass hulls, decks, and gelcoat surfaces with this concentrated stain remover. Formulated to cut through rust streaks, waterline stains, mineral deposits, and organic discolouration that regular boat soap won’t touch — without damaging the underlying gelcoat when used as directed.
The 16 oz size is practical for spot treatments and targeted cleaning sessions, giving you enough product to work through a full hull waterline or multiple problem areas in a single application.
Specifications
- Size: 16 oz (473 mL)
- Surface: Fiberglass, gelcoat
- Application: Stain removal — rust, waterline, mineral, and organic stains
- Part Number: DIN-790
Best For
- Waterline rust and tannin stains from dock water
- Mineral deposits and hard water marks on hulls and decks
- Organic staining from algae, leaves, and debris
- Pre-wax prep — clean the surface before polishing or waxing
- Spot treatment on white or light-coloured fiberglass
Tips for Best Results
- Apply to a wet surface and work in small sections
- Rinse thoroughly after treatment — do not let dry on surface
- Follow with a wax or polish to protect the cleaned gelcoat
- Always test on a small inconspicuous area first
- Use gloves and eye protection — follow all label safety instructions
Parts Desk Insights
Best use case: This is the right product for customers dealing with stubborn waterline staining or rust streaks that regular cleaning products can’t shift. It’s a strong seller at spring commissioning when boats come out of storage with a season’s worth of staining built up. The 16 oz size is ideal for a single boat or targeted spot work. Remind customers to follow up with a wax or polish after use — stain removers open up the gelcoat surface and it benefits from protection afterward.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.