Black Marble Tree-of-life, Efcolor cold enamel
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- Опубліковано 9 січ 2020
- I have been playing with Efcolor cold enamel. (I play a lot!) This is my attempt to make a polished black marble medallion engraved with my version of the tree of life, and finished with Efcolor cold enamel. amzn.to/2HESI4F
Thank you to Megapaul for the great intro music "Mandolina Smith"
www.looperman.com/loops?page=...
www.looperman.com/loops (Royalty Free Music Licence) - Навчання та стиль
Sooo beautiful
Thank you! Cheers!
Great video, thank you for sharing.
Thanks for watching!
I really enjoyed watching you make this stone ornament. I think that the shrinkage you are experiencing is due to the stone acting as a heat sink. It's much thicker than the metal blanks the product was designed to work with. They cool down relatively quickly preventing any overcooking of the resin. In contrast, the stone naturally holds onto heat for much longer, increasing the probability of the resin overcooking. I would wager that the solution maybe to put a temperature probe on the marble and pull it out of the oven as soon as it reaches 150°C or slightly less. The residual heat in the stone will dissipate slowly but the resin won't overcook. It's funny but a joint of meat when roasted continues to increase in temperature after its removed from the oven. The size and density of the meat prevents heat reaching the centre. It can only move by convection, so the centre continues drawing heat in and increases in temperature for a few minutes, then slowly cools. You need to pull the marble as soon as its top surface reaches 150°C. It doesn’t matter what temperature the rest of the block gets to. You can get oven safe thermometers on Amazon that allow you to set a target temperature and sound when the tip - usually stuck in the thickest part of a joint - reaches the target temperature. Or use a point and shoot laser thermometer to take a reading off the top of the marble.
Hi, I think you are right about the difficulty in judging the temperature and the stone acting as a heat store. This does make the process somewhat hit and miss. I have started to try out cold cure crystal clear resins as an alternative with some success. This is a subject I shall return to. Thank you for the reasoned and interesting input.
excellent lesson, cheers.
Glad you liked it!
Hi Steve, thanks a lot for this video! It's really nice to see that Efcolor works on marble too. How thick does the layer need to be for it to be opaque?
Hi, I have really only had success with the metallic silver and gold. I find the enamel looking colours often burn or bubble, this may be because the stones hold the heat too long. The depth I usually aim at is 1 - 2 mil. Even the failed colours seem to be opaque at this thickness.
Maybe the answer is out there in your other videos, but what vinyl cutter are you using?
Hi, I use a very old Korean built cutter "CGI" it has been reliable for twenty years!