When you begin to see the old paint show through the primer you ve gone far enough.
Fil dents in sheet metal.
Start by removing the paint inside and around the dent with 24 grit paper.
You can also chuck the 24 grit disc into your drill and spin it deep into the dent getting all the way down to the metal.
Works on metal wood and concrete.
Sand the primer using a straight back and forth motion.
Hiding the dents is just like taping and sanding drywall except the patching material is a little thicker and tougher.
It s built up gradually in thin layers until the dent or hole is filled and level with the surface of the metal but it should only be used with dents no more than 4 inches in diameter.
Minor damage to a sheet metal structure includes missing or damaged rivets scratches or small dents a small crack and a corroded sheet metal surface.
Each layer is.
It causes them to slow down and pack closer together making the metal contract.
If you sand away too much primer and you can see metal again you ll have to reprime and resand.
Easy to use filler can be drilled filed sanded and painted.
Repairs cracks or porosity leaks in cast metal parts.
Place a washer on the screw.
Bondo plastic metal is a product commonly used for filling dents and cracks in metal surfaces usually on automobiles.
Switch to 80 grit sandpaper and hand sand the entire dent.
Forms a long lasting metal tough bond.
Lab metal fills dents and flaws in metal and nonmetal parts easily and economically.
Again the exact size doesn t matter as long as the washer won t.
Chilling the metal such as with freon or dry ice does the opposite of exciting the molecules of the metal.
Fill a spray bottle with clean water and spray the repair area and the sandpaper.
Excellent adhesion to galvanized metal.
It s available at home centers and hardware stores.
Dents in sheet metal are the result of the metal being stretched by something impacting with it.
For a heavy duty fix use a two part auto body filler.
Drilling numerous holes in and all around a dent slide hammering the riddled metal out plastering.
The first step in any repair process is assessing the damage to determine whether it s simple or major.
Another excellent source is aircraft sheet metal published by jeppesen.
Insert a sheet metal screw select a sheet metal screw slightly wider than the hole you ve drilled.
Heat special tools and specialized skill are unnecessary.
Apply lab metal right from the can with a putty knife or similar tool.
The easiest way to fill in the dents is with a premixed patching or glazing compound designed for steel doors.
No two component mixing or measuring is necessary therefore there is no waste.