Disposable Putty Knifes




About: A Mechatronics engineer with an addiction for knowledge.

Intro: Disposable Putty Knifes

While fixing some dents in the cars, i came across some holes in weird places, and some contours that i wasn't able to fill properly with having to torture my self with alot of sanding.

This is very easy and quick to make, and proved very practical.

I used some wooden tongue depressors(can be obtained cheaply at any pharmacy), wire cutter, sand paper on a block (any flat surface would do the trick), and some wood glue.

Step 1: Preparing the Sticks

  • The sticks' tips were roughly cut with the cutter.

when using it for the first time, the stick broke when i applied a little pressure when the putty hardened. So i tried two methods:

  1. Gluing two sticks instead of one, which was really uncomfortable to used because it wasn't as flexible, but maybe someone can find it useful.
  2. Gluing small braces at the breaking points.
  • The tips were sanded to remove any fibers and roughness.
  • The tips were beveled by using the sticks as if the block is being filled with putty.

Step 2: Finished Product

What i love about this is that i can be made in less than 5 minutes on the spot, and saved me alot of sanding.



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    10 Discussions


    3 years ago on Introduction

    Instead of using wire cutters, score one side with a box cutter or razor blade. Bend towards the cut and it will snap off pretty cleanly. This should save you some time on the final sanding and shaping.

    1 reply

    3 years ago

    Have you ever considered popsicle sticks, probably available @ hobby shops.....

    1 reply

    Reply 3 years ago on Introduction

    Interesting, their small size could reach weirder spots ! though
    hobby shops aren't as available as pharmacys in my country (Jordan).
    I've used to collect the round Popsicle sticks as dowels for joining


    Reply 3 years ago on Introduction

    Some countries like here (Jordan) amazon isn't an easy option :), we can only get something if we really want it and it can be bothersome and expensive but yeah, it should work as well


    3 years ago

    These would also be useful if you ever found yourself in prison, and you needed a shiv quick!

    1 reply