Monogram Drink Coaster with OlyMEGA: Branding Wood Coasters with Science

Presented at ToorCamp 2018, June 21, 2018, noon (180 minutes)

Ever wanted to monogram your wooden goods but can’t justify the expense of a custom branding iron, an indistinguishable effect can be achieved by applying a strong solution of ammonium chloride, for instance using a foam rubber stamp, followed by relatively mild heat.

On heating, ammonium chloride decomposes into ammonia gas and strong hydrochloric acid (NH4Cl → NH3 + HCl). Ammonia diffuses away into the atmosphere, leaving the strong acid behind, which burns the wood. The resulting chemical burn is identical to a heat burn in most respects.


  • Zach
    Graduated from Job Corp Welding program and I like to make things. Gaming · Games · Reading · Video Games · Sci-Fi/Fantasy · Electronics · 3D Printing · DIY Technology · Hardware Hacks & Gadgeteering · Robotics
  • Alan
    Lets Get our Geek on ! :) I'm always in for learning and doing new projects!! And of course anything rtl-sdr :) Hardware Hacks & Gadgeteering · Hiking · Electronics · DIY Technology · Open Source


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