Best metal rust remover.

[pescador]

I’ve got some rust on some hardware/bolts/screws in the bilge area I want to stop. What’s the best product to penetrate rust for clean up and to stop the advancement of rust?

 

[Alex_c]

wire brush and then regular application of fluid flim.

 

[Ringo]

I would use a wire brush and then add a generous dose of Boeshield.

 

[Flashman]

Unless you are willing to consistently reapply whatever coating you choose, preventing rust is a losing battle.

Consider this stuff. It's similar to fluid film but sets up into a more waxy coating. I find fluid film doesn't harden up sufficiently and washes off.



Can you change the fasteners to 316? That would solve the problem.

 

[Pineapple Express]

Unless you are willing to consistently reapply whatever coating you choose, preventing rust is a losing battle.

Consider this stuff. It's similar to fluid film but sets up into a more waxy coating. I find fluid film doesn't harden up sufficiently and washes off.

View attachment 120679

Can you change the fasteners to 316? That would solve the problem.

I agree that Fluid Film washes off.

I disagree that 316 will solve the rust issue. 316 is still vulnerable to crevice corrosion. Way back when at a job I had we fabricated a lot of stainless parts for marine applications. We would "pickle" the 316 stainless with an acid paste that would dissolve some of the iron of the stainless alloy on the surface to reduce the rust, but even still in the crevices and especially between different materials/parts rust would still form. It's called stainLESS not stainfree!

 

[Rain City]

I’ve got some rust on some hardware/bolts/screws in the bilge area I want to stop. What’s the best product to penetrate rust for clean up and to stop the advancement of rust?

Davis FSR Fiberglass Stain Remover https://share.google/1KhQNluJQGAzcOy1R
This stuff works like a hot damn on rust. Just wipe it on, wait 15 minutes and wipe it off. Heavy stains take a couple applications.

 

[Alex_c]

Unless you are willing to consistently reapply whatever coating you choose, preventing rust is a losing battle.

Consider this stuff. It's similar to fluid film but sets up into a more waxy coating. I find fluid film doesn't harden up sufficiently and washes off.

View attachment 120679

Can you change the fasteners to 316? That would solve the problem.

I think that stuff is basically cosmoline. It gets hard and nasty
over time. I would avoid it on stuff you plan on servicing, but it definitely works!

 

[Downchild]

This is the real deal.
I've used this stuff on pliers for years now.
I never have to worry about seized pliers.

Boating and Marine Cleaning and Maintenance – Corrosion Technologies

Corrosion Technologies' collection of cleaning, protecting and beautifying products for boats, yachts, work boats, commercial ships, cruise ships and naval vessels.

www.corrosionx.com

 

[BC Coast Pilot]

Muriatic Acid to remove rust, then lubricate with corrosion guard.
Using Muriatic is dicey, requires eye protection and ppe and care

 

[InterMechanico]

I’ll raise you Phosphoric Acid! Converts rust to iron phosphate which a tough, stable surface that resists future oxidation

 

[PEETZcanada]

Actual removal of rust from a part - there are a number of products on the market, but my most recent discovery based off of a suggestion from a friend is "POR 15". I found it in the auto department in the paint section at Canadian Tire.

 

[ClintR]

I agree that Fluid Film washes off.

I disagree that 316 will solve the rust issue. 316 is still vulnerable to crevice corrosion. Way back when at a job I had we fabricated a lot of stainless parts for marine applications. We would "pickle" the 316 stainless with an acid paste that would dissolve some of the iron of the stainless alloy on the surface to reduce the rust, but even still in the crevices and especially between different materials/parts rust would still form. It's called stainLESS not stainfree!

316 and 304 are both considered marine grade stainless and will definitely rust. Contact with mild steel will start the process. Even a few strokes of a wire brush if it doesn’t have SS bristles can cause surface rust to start forming

 

[pescador]

Bought the he Boeshield off Amazon. I just wanna control it reasonable. I’ll keep an eye on it and clean regularly. The bolts are in my Garmin autopilot. Got them cleaned up with wd40 now to apply the boeshield. Thanks for input gents.

 

[Brando]

LanoCote® Lubricants & Coatings

Forespar Marine Products That Perform. Lanocote boat lubricant. Displaces water, absorbs corrosion, forms moisture barrier, and penetrates with high lubricity. Hundreds of applications onboard any boat. Forespar 770001 770003 770007

www.forespar.com

Buy the paste, you can put it on your transducer battery connections around the trim unit on your outboard, wipe it on your thru hulls next haul out, you name it pretty much anything works well. Definitely can be a bit messy but non toxic and cleans off easily enough with rags or paper towel. Use a small brush that you would use for flux to apply.

 

[BC Coast Pilot]

I’ll raise you Phosphoric Acid! Converts rust to iron phosphate which a tough, stable surface that resists future oxidation

Boom!