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Registered Member #599
Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
Indeed Dr Spark does know how to make things stand out :)
But to be honest, at least my epoxy coated coil does not fall that far back. It is just about as shiny and thick, but it does have more wavy surface due to the fact it has not been sanded once. I could block sand and buff it to piano finish but im far too impatient to do so I had first light the next day i got the coil wound.
Also thick epoxy is super tough, i have been banging this large secondary to door frame couple times already when i was carrying it on my shoulder. Only thing that took damage was the door frame...
Registered Member #2292
Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
Honestly, it's a matter of application. If you plan to make exquisite exhibit coils like we do poly is the way to go. Our customers demand visual perfection and you just can't achieve that level of visual perfection with epoxy, you would be hard pressed to find an imperfection even with magnification.
Epoxy on the other hand is great for quick application. This is why we use epoxy on coils we don't plan to put in museums.
Electrically and mechanically they both perform about the same, assuming you applied the same thickness of coating. The trouble is most people are too impatient to apply the same amount of poly in multiple passes as achieved with a single pass of epoxy. For this reason it usually gets a bad rap as being less durable that epoxy, when in reality this simply isn't true.
Saying that one is always better than the other is just silly. They both have their applications and this is why we use both in different cases. It's simply a trade-off between speed and visual quality.
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
sorry to butt in ... has anyone else found that having a thick coating (I used polyurethane) stores quite a static charge (small arcs to fingers) on the surface after operation ?
Registered Member #599
Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
Goodchild wrote ...
Honestly, it's a matter of application. If you plan to make exquisite exhibit coils like we do poly is the way to go. Our customers demand visual perfection and you just can't achieve that level of visual perfection with epoxy, you would be hard pressed to find an imperfection even with magnification.
Have you actually tried to block sand and buff epoxy?
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Epoxy Coating Tutorial Video
I had first light the next day i got the coil wound.
