Rust occurs when the iron oxide in metal reacts with oxygen and water or air moisture. This "chemical oxidation" comes in varying degrees of rust damage identified as surface rust, scale formation and deep pits.
While rust corrosion is fairly common and can be troublesome, it can also be dealt with.
The first signs of surface rust are the appearance of a reddish-brown or reddish-yellow discoloration on iron or metal. As corrosion continues to the scale formation stage, it will soon form a layer of rust that starts to flake off.
With enough time, rust will begin to form deep pits and degrade any iron mass which can be particularly damaging and costly. Ultimately if untreated, this deep pits stage will lead to the metal surface's eventual disintegrate.
The good news is, corrosion of iron is preventable AND reversible.
Using a rust converter paint on a rusting metal surface will stop the process of corrosion. Rust converters chemically penetrate existing rust, reverse the degradation and leave behind a high quality latex metal primer.
You will know when the chemical conversion has taken place as the rust converter paints on milky white and dries black upon completion.
By sealing out moisture, using a rust converter extends the life of metal and prevents future corrosion from occurring. Your new surface will be rust proof.
The chemistry works like this:
A rust converter creates a permanent chemical bond, reacting with rust and converting it to a layer of magnetite; a black iron oxide mineral which does not react with oxygen or moisture.
Rust converters are also a metal primer and bonding agent for oil-based coatings (acrylic, enamel, epoxy, polyurethane and moisture-cured urethane) and waterbased coatings.
Effectively, once a rust converter is painted on to a rusted surface, rust is permanently converted, primed, sealed and ready for a topcoat.
You might have a rusted surface that you don't want painted -- if that's the case, you should use a rust remover instead of a rust converter. We wrote an earlier blog post on the key differences between a rust converter and a rust remover which might be helpful.
We are often asked why epoxy acrylic paint is so superior to other coatings. Adding epoxy to acrylic acts to fortify the paint and protect surfaces, particularly:
Surfaces with weight bearing requirements.
Not all floors are created equal. Places like airplane hangars, garages and warehouses simply need to be built to endure more. Because of epoxy's crosslink system, AdCoat’s epoxy coatings can withstand heavy weight and heavy duty conditions and endure the load of cars, airplanes, industrial machinery.
Surfaces exposed to extreme high and low temperatures.
When it comes to driveways exposed to snow and concrete or asphalt in the tropic sun, the magic of epoxy paints is that they expand and contract with changing weather conditions. This means that for cold winters and hot summers, your epoxy acrylic will flex and "breathe" to accommodate the changes. Additionally, the acrylic component prevents UV light from weakening the chemical make up of the coating. This has the added benefit of also protecting the color of the paint. UV light can turn even the strongest of coatings yellow if they do not use acrylic.
Exterior surfaces exposed to harsh weather conditions.
Epoxy acrylics form a barrier to withstand harsh outside elements including intermittent exposure to water, salt spray and moisture. Some are engineered to provide excellent protection against corrosion and flash rust. This makes them ideal for oil rigs at sea, water treatment plants, marine structures and storage tanks.
If you want to avoid painting multiple coats, you can always opt for a DTM paint made of an acrylic epoxy like ours which acts as a primer, undercoat and topcoat in one. Using a 100% pure epoxy catalyst ensures an extremely durable, bonded paint finish to metal surfaces as well as wood, masonry and aluminum.
If you're unsure of what type of coating is right for your needs, give us a call. We're happy to provide guidance.
How to paint your driveway floor?
If your driveway is sun bleached or in need of a fresh coat of paint -- or worse, cracking and becoming catchalls for rain and dirt -- it sounds like you're ready for a refresh.
Painting the driveway can transform the look of your home, and its an affordable and attractive option to improve the value of your property.
Prepping the floor and following these steps will ensure you get the most out of your investment.
Once you've followed these steps on how to paint a driveway, plant a fragrant bush and sprinkle in some brightly colored perennial flowers. It's sure to make you smile when you drive up to your home after a long day of work.
How do you paint a garage floor -- and make sure it lasts?
Once you've gone through the hassle of hauling everything out of the garage, painting the floor and parking the car on the street waiting for the floor to dry, you won't want to have to do it again anytime soon.
Here are some tips to prolong the life of your garage floor paint -- and ensure a long-lasting result.
Following this advice, it's possible you can maintain a clean and polished appearance on your garage floor for 5-7 years before having to re-paint. Best of luck!
Considering how to remove rust?
So you have a rusty object and you’re wondering if you should use a rust remover or a rust converter.
There's a big difference and in the end it comes down to the rusty object or surface… both what it is and the intended appearance or function you're after.
With so many products on the market, it can be difficult to assess which rust solution is best for your needs. Here are a few points to consider when deciding which is right for your project.
Rust Removers will...