Rust in reinforced concrete

How to cure rust without removing it

Property Repair Systems - where you can speak to real people - 01626 331351

 

 

 

 

 

 

 

       

Rust in steel reinforcement bars - how to cure it

Rusty Rebar - how to stop rust permanently - commercial rust, industrial rust, marine rust.

1. Grind out the concrete to reveal all the rusty rebar faces.

2. Wire brush or needle gun the steel until only hard, stable rust remains.

3. Apply two or three coats of our Ultra Rust Cure Seal - click here to see prices and buy - Owatrol Seal Oil

4. Apply two coats of Ultra Rust Stop Primer - click here to see prices and buy - Owatrol Seal Primer

5. Apply one coat of Epoxy Primer and whilst it is tacky fill the hole with either Moldable Epoxy Putty or Epoxy Patching Mortar.

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Rust Seal Oil - how does it work

1. Eliminates Oxygen - it soaks deeply into the rust layer and displaces the Oxygen - rust cannot continue without Oxygen

2. Eliminates water - it soaks deeply into the rust layer and displaces the Water - rust cannot continue without Water

3. Seals - Owatrol Seal Oil actually forms a smooth, hard sealed surface, ready for Priming

4. Remains flexible - Owatrol Seal Oil remains flexible, so will not crack, preventing water from re-entering the metal

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Rust Treatment - example - commercial building rust

Travel Lodge - Maidstone - new build

Travel lodge Maidstone in scaffold - rusty steel on new build

The problem - a newly constructed Hotel already suffering from extensive rusting of external decorative steel ring features.

Scaffolding cost over £50,000 - hence the need for a rust treatment that works long term.

Close up of rusting steel - decorative bands on Travel Lodge

Closer to the rust problem - the virtually new grey paint is already missing from the edges and joints, probably due to poor preparation.

 

Rusty steel ready for wire brushing - no need to grit blast

Real Rust - the rusting has pushed off the paint layers.

Rusting stel along joints

The challenge - to cure the rust without having to either remove all the steel or

curtain off the whole building and grit blast the steel.

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Rust Treatment - the answer

Travel Lodge - Maidstone

1. Wire brush to remove all loose rust and paint.

2. Apply two or three coats of our Ultra Rust Cure Seal - Owatrol Oil - apply until surface looks glazed

3. Apply two coats of Ultra Rust Stop Primer - Owatrol Primer

4. Apply two coats of our Deco Finish Coat in grey - Owatrol Deco finish

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Travel Lodge completely treated with Owatrol Oil and Deco Finish

Travelodge completed

Travelodge finished - grey bands treated with Rust Cure Oil Sealer

Grey Bands are the treated and painted areas

Travelodge Maidstone - completed

Note the very exposed situation for decorative steel.

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Rust Treatment - why are we different

Rust Seal Oil is unlike other rust control methods because:

1. You only need to Wire Brush to remove all loose rust and paint - no need to grit blast or grind - Labour Saving

2. You apply two or three coats of our Ultra Rust Cure Seal - no nasty chemicals - Health and Safety

3. You can use your own Primer - just add Owatrol Oil - no waste of existing Stock Paints


Rust Treatment - applications

Rust Seal Oil is unlike other rust control method - it can be used for:

1. Steelwork in buildings - rusty RSJs, rusty Universal Beams, rusty Universal Columns, rusty Lintols, corroding Reinforcing Bars (rebar).

2. Steel in industry - rusty machines, rusted machinery support beams, rusty steel sheet, rusty steel bar, rusty pipework.

3. Steel and iron in boats and ships - rusty marine parts, rusty iron keels, rusty ships plate, rusty marine fittings.

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Site written by: David Moore

David Moore, B.A. (Hons.), C.T.I.S., C.R.D.S. Technical Author

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