How to renovate rusted steel objects or structures without blasting
RD-Elastometal, “direct-to-rusty-metal” coating system designed to
• Adhere onto and seal weathered metallic surfaces,
• Protect against corrosion
RD-Monoguard, « next generation » anti-corrosion coating
• Superior anti-corrosion properties
• Semi gloss industrial finish
Restore rusty steel objects on video
Usually, the surface of weathered steel objects is not even everywhere. Some areas have lost their protective layer of paint, others are showing deep rust craters, other areas may still look nice or have hidden rust under the paint, etc…
It is often a mix of different situations. Making only spot repairs is time consuming, not very aesthetic, and will keep you continuously busy all year round.
lRD-Eastometal & RD-Monoguard
Using two of our most innovative water-based protective coatings will solve most situations in an easy and cost effective way:
RD-Elastometal is a unique product that offers unequaled performance and longevity. It combines in a single product, high waterproofing properties with very high anti-corrosion properties. With more than 200% elasticity, RD-Elastometal can flex and bend on any kind of surface it is applied on.
RD-Monoguard combines all the properties of next-generation coatings: water-based, low VOC, fast drying, high anti-corrosion properties, single component, combined with a nice semi-gloss enamel type of finish. The thickness to apply will depend on the environment and kind of project, these figures are a perfect guideline to follow:
These two exceptional systems are also used on metal bridges in the marine environment such as the Oresund Bridge connecting Denmark to Sweden and one of the longest bridges in Europe!
The thickness of each paint to be applied will depend on the environment in which the object is located, the type of project and the expected longevity.
However, considering that it is the surface preparation and the labor to apply the paints that make up the majority of a renovation budget, we generally recommend going with the best performing combination.
Industrial and marine environment
1st layer: RD-Elastometal at a rate of 0.5 Kg / m²
2nd coat: RD-Monoguard at the rate of 0.2 L / m²
Benefits and expected performance of the system
The lifespan of the system is generally over 15 years! And a majority of projects can benefit from the RD Coatings warranty. See the "RD Coatings Warranty" page for details.
The main advantages of the system we offer are:
For the project manager/owner :
- No blasting required, economical solution
- High performance and durable system
- Water based, safe, no fire hazards
- Virtually odorless, can be used in occupied buildings without disturbing
- Wide choice of colors
- Limited downtime, possible to apply within 24 hours
For the applicator :
- Easy application
- Almost no VOC
- No isocyanates
- High performance
- Proven track record
- No pot-life
- One-component and quick-drying
- No need for solvents nor thinners.
Inspect and treat bolts
Preparing the product
Specifications for an airless application
Verify that the surface is dust-free with no contamination and no condensation.
If interrupted during the application we recommend that the areas to be coated be re-pressure washed or rinsed, usually if the surface has sat for more than 3 days without rain fall or located in a polluted environment.
When spraying RD-Elastometal, applicators are amazed to see that there is almost no overspray, which results in a better yield. The coating is also Dry Fall, paint dust can easily be removed once it is dry.
Using an airless, the prescribed thickness can easily be achieved in one single pass and beginners who may sometimes spray too thick will notice that there is no sagging up to 1mm and more!
If you use a brush, you might have to pass 2 times to reach the indicated thickness. Eventually finish details such as small metallic objects, corners and edges with a brush.
The thickness is important and needs to be in line with our recommendations as it will be your guarantee for the long-term performance of RD-Elastometal. Think of measuring the wet film thickness during the application as this will help you to figure out your future dry film thickness.
Let the paint dry for +/- 6 hours. Depending on the weather and the thickness you applied, this can be shorter or longer.
Apply the second layer of RD-Monoguard on the entire surface by brush or using an airless.
RD-Monoguard is more an enamel type of coating, do not apply thick coats in a single pass to avoid sagging and favor a second pass several minutes later to build up the thickness.
230 µm wet 9 mils is usually the maximum achievable thickness in 2 or 3 passes.
Eventually finish details such as small metallic objects, corners and edges with a brush. Think of measuring the wet film thickness during the application as this will help you to figure out your future dry film thickness.
RD-Monoguard dries fast, usually within 1 to 3 hours depending on the temperature.