Quote:
Originally Posted by Highpockets
After going through 6 pages of search results and not finding exactly what I need I just have to ask another epoxy question or two.
I have been having a few adhesion problems with Devcon on createx. I get little spots that just won't stay covered. Therefore, I have the following questions.
1) If I want to do a second coat, do I need to sand the top coat before the second application? Will I be able to fill in the holes and get a smooth top coat?
2) How about E-tex on top of devcon? I just built a spinner. Given that Etex is pretty thin, will it fill in the gaps in the Devcon and give a smooth even top coat? Sand in between?
3) How about multiple layers of E-tex? Sand in between?
Based on my review of searched topics, I also will try a clear scratch coat on a couple of my next plugs.
Thanks in advance.
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Welcome to epoxy hell. The adhesion trouble you are having is common. It is usually due to contamination (oil or silicone). You can use a spray clear coat, sand it, wipe it clean with alcohol and epoxy over that, although epoxy will usually stick pretty well to Createx without any topcoat first. Try not to handle your plugs once they are painted (wear gloves or use a clean cloth). Be sure you are not mixing or measuring your epoxy in something or with something that is not clean (or may have residual mold release agents in it). Some people clean everything (cups, mixer, measuring device, and brushes) with alcohol first. Brush the epoxy on hard to improve surface adhesion. Do not try to put it on too thin. Be sure the plug is dry before applying. Pray a lot. Study up on new swear words. Good luck.