How thick can Bondo body filler be applied?

1/4”
There is no minimum thickness for Bondo, but there is absolutely a maximum. You do not want to apply body filler to anything that is thicker than about a 1/4”. That does not mean it can’t be done, but the repair will not last as long. Eventually the filler will shrink and possibly crack or even fall off.

Why is Bondo bad?

Unfortunately, filling compounds such as Bondo also present some drawbacks. Fillers like Bondo can crack if they are mixed too thickly, harming rather than improving the look of the car. Additionally, there’s a risk of discoloration and poor long-term wear when you use a dent repair filler like Bondo.

Is Bondo brand body filler good?

They are ALL good fillers, just that the cheaper fillers are more coarsely ground, sand a little harder and takes more labor effort to work with. On the other hand the premium lightweight fillers are easier to work with, sand easier and do a better job of finishing off the repair.

What primer do I use over body filler?

Urethane primer (2K) Urethane primer is the most common primer used in auto body and restoration by far. It has good solids and fills well. It is easy to sand and can provide you with a perfect body when blocked properly. Care should be taken when applying it as to not use too much.

Should you primer before body filler?

Do not proceed to Primer Filler stage until filled area is even. Adding body filler AFTER primer filler should be avoided to prevent possible adhesion, staining and shrinkage concerns.

Do you need primer over Bondo?

You should use a “direct to metal” (DTM) primer to help top coats stick to the metal but it’s not needed under body filler most of the time. Once the metal is primed then you can apply a “filler primer” (2K) to help hide scratches and minor surface irregularities.

Is Bondo permanent?

Bondo Body Filler cures fast, shapes in minutes and is formulated to be a non-shrinking and permanently durable material. In addition to its uses on vehicle exteriors and other metal surfaces it is also a suitable repair option for wood, fiberglass and concrete.

Can you add too much hardener to Bondo?

If you add too much hardener, the mixture will gel too quickly. If you add too little, it increases the amount of time for it to cure, and if you don’t add enough it will never cure. If you add 1 line of hardener across the top of the dollop of Bondo, it takes about 15 minutes to dry after applying.

Why is my Bondo still tacky?

It could just be the skim on the top that stays sticky. Some lower quality fillers don’t have the additives required to stop that from happening. Try sanding it, if it remains soft and clogs your paper after that first top coat has been removed then you need to take all off.

Can I put body filler over paint?

Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint. However, with so many different types of aftermarket paint available (lacquer, enamel, urethane, water-based). We recommend that all paint be removed where filler is to be applied.”

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.

What kind of filler to use with Bondo filler?

The filler is easily mixed using the included Bondo Red Cream Hardener, designed specifically for use with Bondo fillers. It also features a fast-drying formula that is sandable in as little as 20 minutes, saving you time on auto body repairs.

How big is a Bondo body repair kit?

Size:1 Quart (32 Ounces) Bondo Body Repair Kits are the same top quality Bondo products used to repair dents, rust holes, scratches and other body repairs. These easy-to-use body repair kits are all you need to get started.

How to check Bondo 1 pint auto body filler?

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What kind of auto parts does Bondo make?

BONDO manufactures and markets automotive body repair, household repair and marine products under the BONDO, MAR-HYDE, BONDO HOME SOLUTIONS, DYNATRON, MARSON, LAMINEX and BONDO MARINE brand names.