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Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 4:40 am
by Dickens
I have some GEC knives with the Tiger Lily and Dead Skunk acrylic covers. Do any of you know if GEC's acrylic is stable or will it gas out a ruin the blades?

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 4:54 am
by jerryd6818
Jim, acrylic doesn't outgas. It's very stable.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 5:04 am
by Dickens
Thanks, Jerry. I wasn't sure.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 5:10 am
by Dinadan
Dickens wrote:I have some GEC knives with the Tiger Lily and Dead Skunk acrylic covers. Do any of you know if GEC's acrylic is stable or will it gas out a ruin the blades?
That was a good question. I have a GEC acrylic handle knife and I have wondered that too. Thanks for the info, Jerry.

I have also wondered how long lasting acrylic is? I never saw acrylic handles until a few years ago. I wonder how they will look in a hundred years? Won't matter to me!

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 5:39 am
by philllll
I think they should last a very long time. My understanding is that it's basically epoxy, sort of like micarta without the cloth substrate.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 5:52 am
by royal0014
"Acrylic" is a generic term for Poly(methyl methacrylate) or PMMA for short, a common thermoplastic.
You might know it better by the trademark names; Plexiglas or Lucite.
It is as stable as any man-made plastic .. .. ..


Did I mention I work in plastics ? :roll:

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 6:35 am
by Dinadan
royal0014 wrote:"Acrylic" is a generic term for Poly(methyl methacrylate) or PMMA for short, a common thermoplastic.
You might know it better by the trademark names; Plexiglas or Lucite.
It is as stable as any man-made plastic .. .. ..


Did I mention I work in plastics ? :roll:
Royal - somehow that does not sound real reassuring! I only have one or two acrylics, so it is not a big deal for me.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 7:04 am
by jerryd6818
royal0014 wrote:
Did I mention I work in plastics ? :roll:
Thanks Royal and no, I don't think you did mention that you're "Plastic Man". Good to know.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 9:33 am
by royal0014
::shrug::

Well, I was just trying to help . . . .
did not mean to annoy.

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jun 18, 2015 10:12 am
by Dinadan
royal0014 wrote: ::shrug::

Well, I was just trying to help . . . .
did not mean to annoy.
I certainly did not find your input annoying. I tend to think of plastics as lasting a few decades at best. That is what I meant by saying that you were not very reassuring.

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jun 19, 2015 4:56 am
by Classic Case
In a 1000 years, you will probably be able to dig plastics from today, out of a landfill. ::shrug::

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jun 19, 2015 8:56 am
by HiPower
thank you mr. royal I really appreciate information from an expert.most of the floor finishes I worked with since the 80s were acrylics & you really appreciate their durability in schools & sororities. I think many of auto top coats were also acrylics. HiPower

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jun 19, 2015 5:43 pm
by royal0014
I am most definitely not an expert in plastics, or anything else for that matter :D

I'm not sure how floor finishes, car or spray paint 'acrylics' relate to the type used on the GEC knife covers.
Like I said, it is a generic term. Example : Pugs, Terriers, Labs, Great Danes are all called 'dogs'.
::shrug::

The type most likely used by GEC is technically not biodegradable. It's worst enemy is ....

(drumroll)

.... direct sunlight ! ::nod::

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jun 19, 2015 10:05 pm
by orvet
royal0014 wrote:
The type most likely used by GEC is technically not biodegradable. It's worst enemy is ....

(drumroll)

.... direct sunlight ! ::nod::

::hmm:: ...... just like Delrin. ::nod::

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jun 19, 2015 10:26 pm
by jerryd6818
royal0014 wrote:I am most definitely not an expert in plastics, or anything else for that matter :D

The type most likely used by GEC is technically not biodegradable. It's worst enemy is ....

(drumroll)

.... direct sunlight ! ::nod::
But you are an expert. I didn't know that and I'll bet there were others who didn't know it either. "In the land of the blind, the one eyed man is king."

Re: Stability of GEC's Acrylic Covers

Posted: Thu Jul 02, 2015 11:02 pm
by Old Hunter

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jul 03, 2015 12:46 am
by jerryd6818
Well they certainly hit one out of the park with Delrin®. It may not come close to matching Celluloid for beauty but it takes home the prize for tough and durable.

Re: Stability of GEC's Acrylic Covers

Posted: Fri Jul 03, 2015 1:35 am
by singin46
That video is funny, better living through chemistry, or maybe it should be,,,,we've found new and better ways to kill you all with chemistry.