I was initially very reluctant to get the stipper chemicals on micarta or Res-C. Over time, I realized that the chemicals do NOT hurt either. I have now had plenty of stripper on plenty of micarta and Res-C without seeing ANY damage to micarta or Res-C from chemical stripper.
* I suppose I should qualify the above statement by saying: The Jasco brand gel type stripper I have personally used has not in any noticable way damaged my micarta or Res-C after up to 10 - 30 minutes of contact time. (** Don't breath the fumes from the stripper!!! - Use chemicals outside with good ventilation!) Actual time needed for chemical stripper to remove coating is about 5 - 10 minutes. Then I scrape, wash with dish soap and dry completely. Unfortunately, stripping pretty much has to be followed with a lot more work to make the blades look decent. The raw blades are generally decent as far as relatively smooth on the primary grind areas - although there is usually a dull gray that needs buffing off. But, the flat sides of the blades are VERY rough and usually fairly ugly.
See this link:
http://www.swampratknifeworks.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=10;t=005087#000000
Some blades have just a lot of dimples. But, sometimes there are all kinds of zig-zag machine marks that can be very tough to get smoothed out.
Sanding belts are a different story. They will cut up Res-C. If using a belt sander to remove all of the many pits and marks under the coating, be careful not to let the belt touch the Res-C. The belts will cut into the Res-C. Ultimately, this means it is very hard to get rid of or otherwise finish the pits and unfinished areas around the handles at the ricasso and pommels of coated knives....
I have stripped many knives including Res-C.
I don't think the knives have to be submerged in stripper.
1) You are probably wasting chemicals
2) You might (likely) be removing coating from under the micarta or Res-C handle that could otherwise help protect the blade from rust. Especially, with micarta. I have on occassion put too much chemical on the tang areas around the handle and noticed the removal of some of the coating between the micarta and metal actually leaves noticeable gap areas. The coating has a very noticeable thickness. This gap doesn't look very good and probably collects moisture. It is not a big even gap. It is more of a bunch of small, but noticable fuzzy holes from the texture of the coating and the micarta. I recommend using as little stripper as possible around the handle and sanding the rest flush. I suppose the holes could be refilled with super-glue or similar and then sanded flush. This would be easy enough to do at the spine and belly of the handle, but it is very hard to sand the ricasso and pommel areas! :grumpy:
It doesn't take much stripper to do the job. I bought a quart sized can of gel type stripper and it will do Many knives to come. I recommend a gel type stripper.
Just brush on even and thick, let bubble till done bubbling and scrape off. Sometimes a little spot or two may need a second application, but as Damn the Man said, stripping the coating is VERY easy and very fast if you use the chemical stripper. It is the finishing of the blade under the coating that is the real work.
There are lots of posts on Bladeforums, and Swamp Rat forum about stripping and sanding blades. You will just need to do some searching. Using a belt sander takes some practice to get decent at for finishing knives. I recommend practicing on cheap steel before putting and expensive knife to a belt sander. Do more research about using a belt sander and practice. Or stick to sandpaper by hand or 3M wheels.
Good luck.
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