On the face 2 inches at the base and 4 in.
Clean bonderized gutters or steel or metal before painting.
Wash your gutters clean again and then use an oil based metal primer on the gutters.
Bonderized steel means that this gutter is ready to paint.
The added strength of 26 gauge steel means your gutter system will last longer than plastic or aluminum gutter.
Rain gutters strength varies depending on the type of metal they are made from.
Typical uses are rain gutters downspouts roof flashings and roof valleys.
In many cases that means painting the gutters and downspouts particularly if they are badly weathered or suffering from an earlier paint job that has seen better days.
Another common problem is the painting requirements.
Bonderized or galvanized steel both common types of steel used in gutter systems will generally need a fresh coat of paint about every 5 years.
In recent years architects have used bonderized for roofing and siding without applying a paint to the steel.
For example say you plan to hang a basketball hoop off of your garage both aluminum bonderized rain gutters may dent with the impact of a basketball the bonderized will have a better chance of making it through due to the metal simply being a stronger metal.
Paint applied over this oily surface or clear passivator will peel quickly.
Knowing how painting exteriors include pressure washing first possibly getting fresh old muck on new exterior paint job is counter productive when gutters need to be cleaned first.
If you have galvanized gutters and downspouts iron or steel with a thin coating of zinc here are steps you should follow to get a paint job that lasts.
New galvanized metal a product used to make corrugated sheets gutters and downspouts is usually smooth and is coated with either a layer of oil to prevent white rust or is passivated.
Paint seems to have a hard time adhering to the metal for longer than that.
Bonderized is commonly referred to as paint grip.
This produces the dull gray color characteristic of bonderized that provides as an excellent primer for painting applications.
It is meant to be painted and it holds paint quite well and is popular in the rainwater goods industry.
Bonderized steel is galvanized steel that is processed through a phosphate bath.
Step 1 clean the first step in preparing galvanized gutters for painting is to clean them thoroughly.
Use the extension ladder to gain access to the gutter which needs to be painted.
Use a large cloth and sponge and apply a copious amount of water based cleaning agent.
This provides a corrosion inhibiting crystalline zinc phosphate micro porous surface that promotes adhesion of top coatings.
The gutter measures 5 1 4 in.