Underwater Memorial Plaques?

[Wookie]

Hello Wookie,
First of all, thank you for sharing this. The plaque you installed looks great. I’m currently in the process of producing a similar plaque in memory of a dear family member who passed away while diving. We are considering using copolymer acetate or Delrin, and like you, we’re aiming for a two-tone design (black and white).
I wanted to ask how the image and text on the plaque you installed were applied. Were they laser engraved? Stamp engraved using a positive and negative die? Something else? Any insights you can share about the process would be greatly appreciated.
I’m also wondering if you happen to know of any type of glue or adhesive that works well with materials like copolymer acetate or Delrin.
Thank you very much in advance!

No idea.

I am a professional at what I do, the plaque maker is a professional at what he does.

I'm just a diver.