Thread: repairing styrofoam dents

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Hey all...I've been working out in the garage all day on my styrofoam columns. Now that I got one glued together, I moved it off my workbench. It's not really that heavy, but hard to keep a firm hold on. As I set it down, it hit the corner of my bench and put a huge dent in the foam...about the size of a silver dollar.

Although it's not finished, I think a dent that size would not look natural in a stone column. What can I use to fill or repair styrofoam?

I would shoot a little Great Stuff into it, let it dry, then trim & sand it until it blends in.

T Minus 4

If you can stand Great Stuff for longer than 4 seconds before grabbing your dammit tool.

Just use some drywall mud...let it dry then sand

That sound much more manageable.

Even regular "spackle" would probably work, since you'll be painting them anyway.

I've used both spackle and caulk. Just spread it out past the area and use wet hands/towel to smooth and paint when dry.

I use that light weight spackle, dries really fast, doesn't crack, and you can smooth it with a wet sponge when almost dry, or sand it when fully cured.

I thought the point in making columns and tombstones and all the stuff we make was to look old and not new? Aren't dents good?

The best part is taking a piece of Styrofoam and going at it with the heat gun and wire brush to kill the edges and make it look like old !

I use Hobbico HobbyLite filler, it's extremely lightweight (like balsa) and adheres to the foam nicely and sands beautifully. I use it a lot in uneven seams.