QA

Question: Can I Use Car Body Filler On Fiberglass

Bondo products have been used in body shops for years. 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 use regular body filler on fiberglass?

You can use regular body filler on fiberglass. It’s only on SMC panels used on later sharks that you can run into problems. If your car is a chrome bumper car (like in you avitar), you’ll be ok.

What is the best filler for fiberglass?

Fiberglass repairs should be made with vinylester. If you are needing a high strength filler there is only one vinylester based structural filler on the market, and that is 3M High Strength Repair Filler.

How do you repair fiberglass in your body?

How to Do Fiberglass Body Work

  1. Sand and clean the area to be repaired. This sanding should remove all paint and grease and even out the surface.
  2. Mix the filler with the hardener according to the manufacture’s instructions on the 10″x10″ cardboard piece.
  3. Apply the mixture to the area to be repaired.
  4. Allow to dry for 24 hours.
  5. Sand.

Do I need to prime fiberglass door before painting?

Fiberglass doors and sidelights can be smooth or textured with a wood-grain finish. This material usually does not need to be primed, but painting is required.

Should I use fiberglass or body filler?

Fiberglass filler is much stronger and harder than regular body filler so anywhere the filler needs extra strength is a good place for fiberglass filler. I rarely use long strand filler because it can’t be spread as smoothly but when a large area needs the strength the long strand is usually the material needed.

What kind of primer can I use on fiberglass?

If you decide to use today’s modern base or clear coats, urethane primers should be used, which also applies to any single-stage top coats.

Is there a paint for fiberglass?

From the Manufacturer Rust-Oleum Marine Topside Paint provides long-lasting protection and a brilliant finish to fiberglass, wood or metal that is above the waterline. It is made from a modified alkyd and is durable in extreme weather conditions.

What body filler do the pros use?

Rage gold is a good high quality basic filler , rage extreme is a higher grade , &metal glaze is a really good final quality filler.

Should I use fiberglass or Bondo?

I primarily use fiberglass to cover up weld areas the fiberglass putty will resist water and keep everything sealed up so you dont’ get rust in those joints then I sand that down, and apply the bondo over that, real thin, just to fill in the holes and give it a smooth look.

What Bondo to use on fiberglass?

What is the best fiberglass body filler? Bondo 312 Autobody Filler Kit. Permatex 25909 Liquid Metal Filler. Bondo 261 Lightweight Filler Pint.

Do you need special paint for fiberglass?

Fiberglass can be painted successfully. You have to look at it as though you were painting plastic. Paint: Topcoat with two coats of quality, exterior, 100% acrylic latex paint. To keep your steps from becoming slippery when wet, add non-slip sand texture additive to the topcoat.

What is the best paint for fiberglass?

1) Acrylic Paint According to the experts, high-quality 100% acrylic paint is recommended for a semi-gloss or satin finish. You shouldn’t need more than a quart of paint for one fiberglass entry door.

Can you paint over fiberglass filler?

No problem. The trick to great paint on fiberglass (well, on any surface actually) is proper prep. You knowapplying just the right amount of filler, blocking a guidecoat to check for low spots, that sort of thing. In a lot of ways, prepping glass is just like prepping metal.

What is Fibreglass filler used for?

Fibrefix Fibreglass Body Filler is a premium glass-strand filled body filler with excellent build and repair properties for bridging holes and rust damage.

Can you put Bondo on top of fiberglass?

Does Bondo stick to fiberglass? Yes,you can fiberglass over bondo,rough the bondo up with 80 grit for a better bond,use a grooved roller to remove the air bubbles.

Will body filler stick to fiberglass resin?

The fiberglass resin can cure to a very smooth finish that paint may not stick to permanently. When you sand it you put tiny scratches in the surface. The body filler will penetrate these tiny scratches and adhere well.

Is fiberglass filler better than Bondo?

Both fiberglass fillers are stronger than regular body filler. The long hair filler provides the most strength out of the two. However, these fillers are very difficult to sand. The filler is also thick, which makes it hard to level and smooth like regular body filler.

Can you use Bondo all purpose putty on fiberglass?

The products can be used to repair and restore aluminum, wood, concrete, brick, metal, fiberglass, stone and sheet rock. You might try mixing Bondo with a little bit of concrete mix or sand to mimic the texture.

Can you gelcoat over body filler?

You can use epoxy or polyester based fillers both can be coated with gel coat, I’ve been doing it more than 25 years.

Is Bondo All Purpose Waterproof?

Unlike slower drying water- or solvent-based fillers that cure by evaporation, Bondo® All-Purpose Putty chemically cross links to cure for a faster, more durable repair. As a result, Bondo® All-Purpose Putty is water resistant and will not shrink.

How do you smooth out fiberglass?

Start the Sanding process a)Using 80-100 grits: if you’re starting out with the fibreglass and the surface needs some rough peeling, you should use sandpaper with up to 80-100 grits. This will help you get excess machining marks out of the fiberglass surface.

How thick can you apply fiberglass filler?

3. Apply a thin layer using firm pressure to ensure maximum adhesion being sure to “wet out” the surface completely. Apply additional filler in layers, building up the damaged area higher than the surrounding surface. Maximum filler thickness should not exceed 1/4 inch.