It is imperative the enamel finish itself not be removed during this process.
How to repaint metal siding.
Cleaning of the surface can be done by hand washing with warm soapy water or with the use of a high pressure washer 2500 psi minimum.
Set the washer to low then direct the water flow over the panels working along each panel length to remove any dirt or debris.
That is how you can get the paint to adhere to steel siding.
There are a few different methods of doing this depending on how good of a job you want to do how much time and energy you have and how large of an area you are doing.
Step 2 tackle rust.
Begin by thoroughly cleaning your siding of all loose dirt chalk and other contaminants.
Everbrite is a clear coating that will restore the original color and finish of your metal siding.
How to paint metal siding.
There is a great alternative to re painting your metal siding.
I would use the red rust oleum primer the oil based primer and i would let it thoroughly dry after you knock off all the loose paint and sand it and make sure the surface is ready to accept it.
How to paint steel siding.
Step 3 paint.
If you are striping a small area then you can do very well with a bucket of water that has some bleach and tsp in it.
Metal siding is often subjected to extreme moisture that will make it rust or accumulate a thin layer of oil.
Place a low pressure tip onto the washer.
Step 1 cleaning the metal siding.
As with all exterior painting projects proper surface preparation is the key to restoring your metal siding.
Step 1 clean the steel siding.
You can easily restore the original color and finish to look new again without all the problems of painting.
The first step includes cleaning.
Wash the steel siding with trisodium phosphate tsp and use a pressure washer.
When applying a detergent with a pressure washer you have to lower the pressure and use the right nozzle a low pressure tip.
Wait two hours for the siding panels to dry.
Step 5 applying.
First i washed down each wall with a garden hose to remove the loose dust and then filled the detergent tank with krud kutter pressure washer concentrate specified for house siding.
Step 3 applying primer.
Step 4 letting dry and cleaning equipment.
Step 4 retouch.
After the building has been properly prepared it must be immediately coated with a direct to metal epoxy primer.
If poor adhesion is observed the surface must be roughed up by sanding 400 mesh recommended or power washing.