Enter keywords or a search phrase below:

Colored filler


Using baking soda mixed with super glue as a filler is a handy, well-known trick. The main trouble I’ve encountered with it is that it dries clear, making it difficult to prevent oversanding.

You can get around this by using a few drops of leftover ink from an inkjet refill kit to dye the baking soda. I mix up a few batches at a time, in various colors, and store it in small containers. 35mm film canisters work well enough, but you may want to go a little bigger than that, so you can get your fingers into the container.

Now, when the super glue sets, you’ll have a hard, opaque, colored area that makes it easy to know when to stop sanding. You can even lay one color on top of another, to fill in any minor defects.

Experiment – as always!  I’ve found that you may not get the custom-mixed colors you’d expect if you mix wet inks. When they’re mixed wet, dyed blue and red baking soda produce a charcoal gray, but allowing the blue and red dyed baking soda to dry, then mixing the dry powders with super glue the next day, should result in a purple color.

You may also want to mix the colors up a bit lighter than you hope for. They tend to darken when they dry


Read and share your comments on this article

Want to leave a comment?

Only registered members of are allowed to leave comments. Registration is FREE and only takes a couple minutes.

Login or Register now.
Free guide

Free guide

Graft Jaguar and Mazda bodies
By signing up you may also receive reader surveys and occasional special offers. We do not sell, rent or trade our email lists. View our privacy policy