Is high-build primer the same as filler primer?

Some restorers believe filler primer is little more than liquid body filler. In most cases, the filler primer or high-build primer is also a urethane product. You can generally add as many coats of filler primer as you want, sanding between each coat (as some restorers do) or after every three or four coats.

Is primer and filler the same?

Autobody filler is (basically) made of a vinyl ester or a polyester type resin. Epoxy primer is (basically) made of an epoxy type resin. If you were to bond/glass over a metal pad to a fiberglass boat, vinyl ester or polyester is never used, epoxy is.

What is a high build primer used for?

High-Build Primer Surfacer is a flexible acrylic coating for priming steel, aluminum, urethane, fiberglass and plastics. Check local VOC regulations to ensure compliance of all products in your area.

Can you use body filler over high build primer?

Applying body filler over epoxy primer provides maximum corrosion protection for the metal. Apply filler within seven days of applying epoxy primer to maximize adhesion. OPTIONAL: Scuff Epoxy with P120-P180 grit sand paper or red scuff pad.

What type of primer can act as a body filler?

Body filler can also be applied over the epoxy primer. Apply Urethane Primer over the epoxy/body filler. You could also use epoxy primer again, however the urethane will be much easier to sand.

Primers Explained How to Choose a Primer

How much will high build primer hide?

High build primer can be a god send if you have a small imperfection in a panel, you can hide small scratches,small dents,etc etc as long as you know what you are doing. I generally will put 2 or 3 good coats on an iffy panel, let it dry then dust with a dark spray can then wet flat back with 800.

Do you put primer on before body filler?

For small repairs, you can bog directly over the bare metal. If the repair is larger, or you're looking for a longer-lasting job, apply a base coat of epoxy primer before laying on the filler.

What comes first primer or bondo?

The opinion by a large amount was to put epoxy primer down on bare clean metal first and the filler next. Southern Polyurethanes which makes high quality primers that are used by quality restoration shops says to use their epoxy primer before bondo.

What is 2K filler primer?

Description: 2K High Build Primers are a high quality two-component extra build / easy sand acrylic urethane primer with excellent build, colour holdout and durability.

How many coats of filler primer do I need?

Strain Filler Primer with a fine screen before pouring it into a spray gun cup. Set the conventional spray gun pressure to 30-40 psi. Apply 2-3 coats allowing 5-10 minutes of dry time between coats.

What does high build paint mean?

High-Build Coating (UHB)

Typically, high-build film coating thickness, which ranges from 5 mils to about 30 mils, are thicker than those of common paints but thinner than coatings applied using trowels. High-build coatings exhibit properties that enhance their surface protection capabilities.

Can filler primer be sanded?

Well-Known Member. After on application of CWF and sanding I then use just use one coat, a medium application of Duplicolor Filler/Primer and sanding. For me, I go light with 220 grit to take down the filler primer. You've got to go light, otherwise you'll see sandpaper scratches when the color goes on.

Can you put wood filler over primer?

Re-apply your wood filler OVER the first coat of paint/primer. Wait for it to dry, and then sand as you normally do. I've applied wood fill OVER primer a number of times and my finish has always turned out great!

What is the best primer to use on bare metal on a car?

Simply put, epoxy is the best primer for bare metal, making it excellent for newly fabricated metal parts or ones that have been fully stripped. 2.

Can you apply body filler over sanded paint?

Can they be applied over paint? A. Evercoat fillers are designed to work over bare, properly prepared substrates such as: steel, aluminum, galvanized metal, fiberglass, and SMC. Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint.

How do you prepare metal for body filler?

First step: Prep the Surface

Before applying, paint needs to be sanded to the bare metal. Make sure to sand outside of the repair area as Bondo will need to be spread and applied wider than the damaged area. (36-grit to 220-grit should do the trick for body filler application).

What is the best body filler?

Can body filler be applied over polyester primer?

VP2100 Polyester Primer should not be applied over bare metal, only over epoxy primer, fiberglass, or body fillers.

Will primer fill 80 grit scratches?

High build primer will fill 80 grit scratches but it may take several coats. I usually final sand filler with 180 grit, after doing most of the sanding with 80 grit.