#howtodobodywork

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How Do You Mix Auto Body Filler

How Do You Mix Auto Body Filler? Out of all the auto body steps to learn, this should be one of the easiest of all. However, this seems to be one of the most confusing. So how do you mix auto body filler? Can it be mixed on the car? Can it be mixed on cardboard? How do you mix it with the hardener? Mixing Body Filler I have been mixing body fillers for years, over 40 to be exact. I have used many brands of fillers but only one has been the best so far. Where confusion starts for those just starting out in auto body repair, comes from one brand. Everyone always starts with Bondo brand products. It has a popular name and is made by a big company, 3M. Sadly, it is one of the worst fillers on the market and I will tell you why. How To Judge A Good Filler From A Bad One For me, curing time is important but it kind of becomes a two-way street. You want a filler that doesn’t take a long time to cure up and become sandable. At the same time, you don’t want it to cure so fast, you don’t have time to apply it correctly. On top of these two factors, you don’t want it to pack up your sandpaper when trying to sand it. If a filler doesn’t have enough hardener in it, it will fail under a paint job. Too much hardener can also cause failure. However, you are better off it having too much hardener and fulling curing, rather than not. You mix auto body fillers based on temperatures. In warm to hot weather, you mix a little less hardener in it. Read the full article