As with all exterior painting projects proper surface preparation is the key to restoring your metal siding.
Painting over steel siding.
This stuff seemed to cover every square inch of siding and made for a lousy painting surface.
Repeat the procedure until you cover all the steel siding.
Aim the sprayer nozzle directly at the panels eight inches from the siding surface.
You can easily restore the original color and finish to look new again without all the problems of painting.
Do this as soon as any spots start to show the steel underneath or do it a little sooner if you are trying to sell your house.
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.
The first sign that this is beginning to happen is a loss of the glossy look that new siding has.
If you wiped your hand across it you d draw back a dirty yellow palm.
Trigger the sprayer to begin the paint flow and use a back and forth motion to cover the length of the panel with an even coat of paint.
Step 2 protecting other areas.
There is a great alternative to re painting your metal siding.
Finally since metal is such a good heat absorber avoid painting siding while it s getting direct sunlight.
Use the ladder for painting the steel siding on the top and using the roller paint in a horizontal direction.
Step 4 retouch.
Begin by thoroughly cleaning your siding of all loose dirt chalk and other contaminants.
As long as the siding is clean you won t need to use a primer unless raw metal is exposed.
To clean steel siding add trisodium phosphate or tsp to the paint sprayer and clean off any grime with it.
That is how you can get the paint to adhere to steel siding.
If there is any rust on the steel apply a rust converter over the siding which will turn the rust into a black substance you can easily clean off.
Everbrite is a clear coating that will restore the original color and finish of your metal siding.
A pressure washer with a detergent tank is a good tool for removing chalk from the old paint surface.
Since any of this is clearly bad for your metal siding it is vital that you re paint your metal siding.
Restore the original color and finish instead.
This is followed by fading and thinning of the color.
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.