As long as the siding is clean you won t need to use a primer unless raw metal is exposed.
Preparing steel siding for painting.
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.
Prepare a solution of tsp and water that is adequate for the area of your siding.
As with all exterior painting projects proper surface preparation is the key to restoring your metal siding.
Then apply the primer to the metal siding in even strokes.
To properly prepare new metal surfaces use mineral spirits to remove grease and apply a rust inhibitive primer before painting.
Check all the steel siding panels for any loose nails.
Generally you can use a 50 50 vinegar and water solution for all metal except galvanized steel.
It is best to wear safety goggles and rubber gloves to protect yourself from the cleaning solution.
A new paint job was the solution.
How to paint steel siding with the paint peeling step 1.
For painted surfaces that are in sound condition remove dust with a clean dry cloth de gloss the surface with light sanding and wipe with mineral spirits to ensure good adhesion.
The aluminum siding was a shade of beige that had aged into a dull mustard tone and the trim was a rust colored reddish brown.
For steel use a latex bonding primer instead of a regular metal paint primer.
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.
Iron railings siding and so on.
Start at the top of the wall and across the length of the metal siding.
Step 1 wash the siding.
Hammer all into place making sure all are flat to the.
A thorough washing helps clear dirt and grime from your siding.
Paints that are made for galvanized surfaces will require less prep work and will adhere better than other kinds of paint.
Do not use alkyd based paints or oil based primer.
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.
Place a low pressure tip onto the washer.
Begin by thoroughly cleaning your siding of all loose dirt chalk and other contaminants.
Follow the paint manufacturer s cleaning guidelines.
Some people use acrylic latex paint which is not designed specifically for galvanized metal so you will want to prime the surface before painting.
Clean the metal to remove dirt grime and oil before priming with a rust inhibiting primer.
When ready pour the primer into the paint container on the sprayer or pour the primer into the paint tray.
The homeowners hated the look but the metal was still in decent shape and they didn t want the expense of re siding the entire house.