Bondo® Glass Reinforced Filler provides fiberglass-quality repair of small holes and rust-outs (up to 1/2″) without the need for backing strips, fiberglass mat or fiberglass resin.
What is the difference between Bondo and Bondo glass?
Registered. “Bondo Glass” is a short strand fiberglass filler, I goes on like Bondo, but it is made of fiberglass, so it is stronger, it’s also a little harder to sand then regualar bondo.
How thick can you apply Bondo glass?
So in the spirit of political correctness and repeating the party line ” Ideally filler should never be more than 1/8″ thick “. In real life I have seen bondo from another persons previous repair be two inchs thick and last 15 years or more with no problems until the car was damaged again in the repaired area.
What is the difference between Bondo glass and body filler?
Bondo-Glass is a unique reinforced filler containing short, interlocking fiberglass strands and fibers that make it twice as strong as regular body filler. Repairs small (dime size or smaller) rusted-out metal holes and shattered fiberglass body parts.
How long does it take for Bondo glass to dry?
When used according to the manufacturer’s recommendations, Bondo takes 10 to 15 minutes to dry enough to form a sandable surface.
Can you sand Bondo glass?
Cut and sand
Once the Bondo cures, it’s time to sand. Power sanders are OK to break the surface and knock down any high spots, but hand sanding with the body contour is the best way forward. Cut in with heavier grit sandpaper and work out to about 80 grit to leave a tooth for the following skim coats.
Does Bondo glass stick to plastic?
Bondo shouldn’t be used on plastic. Even though a couple of DIY enthusiasts use it to cover imperfections on plastic, it’s not the right product for such a job. If you have a dent or scratch on a plastic surface like your car’s bumper, it can be tempting to use Bondo. After all, it works perfectly on metal.
Does Bondo harden without hardener?
Without it the bondo won’t get hard. Put a small piece of bondo on a board and run a line of hardener from end to end. It will take about five minutes to mix it up and apply it.
What grit sandpaper do I use for Bondo?
Directions for Use
If grinding is needed use a 3M™ 36 or 40 grinding disc followed by 3M™ 80 grit sandpaper if no grinding is required, sand the surface with 3M™ 80 grit sandpaper to remove all primer, paint and rust 1 to 2 inches beyond the outer edges of damaged area. Remove all dust created from sanding.
Why is my body filler cracking?
It’s because the panel is weak that the filler is cracking and putting stuff behind it will introduce other variables that could come back to haunt you and may not solve the problem. The filler is nor more than 3/16 to a 1/4 where the ridge of the panel should be.
Can Bondo glass be used for wood?
Just like caulk is too flexible to effectively fill large gaps in wood, Bondo is too stiff to do the same. When Bondo (or any auto body filler) is used to patch wood, it fails in a very short time.
Is Bondo an epoxy?
Bondo is an epoxy with fillers so, in a way, you’re both right.
Which is better Bondo or fiberglass?
Fiberglass is More Durable than Bondo
The first key difference between these two is in regards to durability. Fiberglass is way stronger than Bondo resin. Therefore, when you use fiberglass filler, expect it to outlast car parts that have Bondo.
Is Bondo water proof?
Bondo Fiberglass Resins and Repair Kits are 100 percent waterproof. Because they do not shrink, they are excellent sealers. Bondo Fiberglass Resin is sandable in less than 2 hours, is compatible with all paints, and creates a strong and long-lasting bond.
Why does Bondo get hot?
You are mixing it too hot. It’s a chemical reaction between the two parts. Exactly!!! It is absolutely NOT a reaction with the metal you are adding too much hardener.
How long can Bondo be left unpainted?
Between life and work, the longest time period the bondo would go Unpainted would be about 2-3 weeks.
Why is my Bondo hardening so fast?
It’s hotter out, so the inital hardening is going to kick in faster. As was mentioned above, the bondo gets hot anyway, but you’re starting out at a hotter temp to begin with during the summer, so the hardening kicks in quicker.
