Table of Contents
What happens if you don’t put enough hardener in Bondo?
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. If it starts tacking up, stop applying it or you’ll mess it up.
Does Bondo filler need hardener?
(Bondo comes with a tube of hardener.) 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.
What happens if you don’t put hardener in resin?
When mixing epoxy resin and hardener, mixing thoroughly is important. Make sure to scrape the bottom and sides while mixing. Do not, however, scrape the sides of your container when pouring. If you do and you have not mixed properly, the unmixed parts will land up in your project and will create soft spots.
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.
How long does Bondo take to set?
Bondo mixed to the color swatch will begin to cure in less than 10 minutes at room temperature. Too much hardener in a warm environment will reduce working time, but too little in a cool environment can result in maddeningly long curing times. A heat lamp can speed curing in colder weather.
Can Bondo go over primer?
A Bondo type of filler, is used for thicker applications, shaping and the like, all the rest is more like primer, the trick for all fillers is to be completely DRY before any type of paint or even primer is put over it, as then it may never dry completely and it then will draw moisture, when it is completely DRY, it Jan 13, 2009.
Is Bondo body filler waterproof?
Choose between Bondo Fiberglass Resins, Bondo Fiberglass Repair Kits or Bondo Body Fillers. Bondo Fiberglass Resins and Repair Kits are 100 percent waterproof. Because they do not shrink, they are excellent sealers. Bondo Ultimate can be applied directly over sanded and cured primer and paint.
Should you prime 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.
Why is my resin not hardening?
If your epoxy resin hasn’t cured properly, this means that the chemical reaction between the resin and hardener was not able to take place. Sticky resin is typically caused by inaccurate measuring or under mixing. Try moving your piece to a warmer spot: if it doesn’t dry, re-pour with a fresh coat of resin.
Why is my resin bendy after 48 hours?
In most cases, the reason you have resin that bends is due to the fact that the resin needs more time to cure. After 24 hours, ArtResin will be at a 95% solidity rate. If you attempt to curve or move the resin before that 24 hour mark, the resin will likely bend.
Will resin harden without enough hardener?
You let it sit, and sit, and sit, but it never completely hardens. Chances are you did not add enough catalyst, the chemical that hardens the resin. There are a few things that you can try to help the fiberglass finish curing. Sometimes these tricks will work, sometimes they won’t.
How do you keep bondo from setting up so fast?
when its hot you just have to be very quick!! It’s actually too hot to use bondo right now. Use a fan and stay in the shade, as you say, inside. Try mixing smaller batches using only a spot of hardener then work up to maybe golfball sized gobs of Bondo and a 1/2″ ribbon of hardener.
Can you sand tacky bondo?
You can go ahead and sand it. If it clogs your paper after you cut through the outside sticky “Film”,,go ahead and strip it off and start over. You didnt put enough hardener in it.
What will dissolve bondo?
Re: Does anything dissolve Bondo? A heat gun will soften it and can easily be removed with a putty knife.
What temperature does Bondo cure at?
Bondo says 45-50 degrees.
How long should Bondo dry before you can sand it?
Allow the putty to dry 15 minutes at 77 degrees F (25 degrees C). In cooler climates, putty may take 20-30 minutes to dry. 7. Using 3M™ Sandpaper 80 grit, sand and shape the filled area to the contour of the surface.
Does acetone remove Bondo?
Acetone will remove at least some fabric along with the embedded Bondo. Apply the acetone to a cleaning cloth and wipe the affected area thoroughly. According to the Aftermarket Product Department of 3M, the Bondo should release from the fabric fairly easily.
How long can you leave bondo unpainted?
Between life and work, the longest time period the bondo would go Unpainted would be about 2-3 weeks.
Can you paint over body filler?
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.”Nov 3, 2012.
Do you need to prime over bondo?
Bondo over time absorbs water causing rust to form underneath. It can also shrink over time causing paint to bubble or peel off. If used..the metal must be primed first.
Do you apply bondo before or after primer?
Bondo should NEVER be on top of anything but 32-grit prepped bare metal, if you want it to stick and last. You can, however, use glazing putty on top of primer sanded with 80-grit. Hope this helps!Jun 26, 2012.
Can your body fill over primer?
Yes you can, but if the damage is minor, I think you would have better luck with a 2 part glazing putty, like Icing. It sands much smoother than regular body filler, especially if you are filling a very small imperfection.
