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🛥️ Keep your vessel flawless—because your boat deserves the best shine on the water!
Gtechniq Marine Rust Stain Remover is a 500ml aquatic-safe liquid cleaner engineered with advanced molecular nanotechnology to rapidly dissolve rust, mineral deposits, and contaminants from coated or uncoated boat surfaces including gel coats and metals. Trusted by boat owners for its fast-acting, eco-friendly formula that preserves the shine and color of marine vessels with easy spray-and-rinse application.



















| ASIN | B0CKY8FXPY |
| Best Sellers Rank | #60,897 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #119 in Boat Cleaners |
| Brand | Gtechniq |
| Brand Name | Gtechniq |
| Customer Reviews | 4.0 out of 5 stars 64 Reviews |
| Item Form | Liquid |
| Item Highlight | Dissolves Rust and Mineral Particles, Fast-Acting, Suitable for Coated or Uncoated Paint or Gel Coat, Easy to Apply |
| Item Volume | 500 ml |
| Item Weight | 0.57 kg |
| Manufacturer | Gtechniq |
| Model Number | MRR 0.5 |
| Number of Items | 1 |
| Part Number | MRR 0.5 |
| Product Benefits | Effectively removes rust and contaminants. |
| Scent | Citrus |
| Size | 16.91 Fl Oz (Pack of 1) |
| Specific Uses For Product | Rust removal |
| Surface Recommendation | Metal, Plastic |
| Unit Count | 16.91 Fluid Ounces |
P**I
Rust removal
Works. Easy use. Washes off easy.
A**R
Work great but smelly
Pretty amazing. Removed the rust from my expensive boat bait board. Also worked well on our stainless steel weber grill. NOTE: Smells like rotten eggs. Need to wash the are down really well when done. Leaves behind soapy, smelly water puddles if you don't.
P**D
This stuff reeks
So far I have loved every Gtecniq product I've used. This is the first one that has fallen short. It says it can be used to remove mineral stains (not just iron) from various things. I've tried to remove the copper staining caused by pipes. I've tried to remove iron staining in my tub. And I've tried to remove mineral staining in my toilet. I saw little if any difference after applying this spray. :( And it really stinks, literally.
S**P
It gets rust off Fiberglass with no issues
Works as advertised!
R**E
Holy Cow!
Excellent product. Bought it for my boat and that worked great. Then I used it on some rust stains on the tile of my lanai, and I'll be darned if it didn't remove that without harming the tile as well! Will buy more after this one is empty.
T**A
Actually works
YESSSSSS!!!! This stuff is literally magic. Worth every penny.
T**9
WHAT-NO SPRAYER???
Product may work ok but the illustratrated sprayer was not in the box. Sure makes it hard to spray!! Have to buy a sray bottle now. Thank.
P**E
Product OK, Delivery horrible
Seems to work OK. Took a long time to receive the product and when it finally came, one of the bottles had leaked ~ 1/4 out. I was told i could send it back for refund or replacement but I wasnt going to wait again for the replacement order so I kept it.
D**R
Works as described
Removed all rust spots ,Also good for engine cleaning
J**N
Cleaner
Works good Use rubber gloves
M**D
Brilliant stuff!
Don’t even think about it - this stuff is asbsolutely amazing! Probably the best treatment I have ever found for anything. Just press “Buy now”.
S**T
Price
Just fallout remover what you use in cars but twice the price did work that well on stained gel coat
M**S
Perfect solution!
Works very well indeed.
Trustpilot
2 weeks ago
2 weeks ago