Heat resistant scales?

java

java

Joined
Dec 29, 2001
Messages
3,190
I'm a little lost and hope I came to the right place for help.

A question came up earlier on a makers forum regarding the best handle material to use in high heat or chemical environments. Specifically mentioned were firefighter's requirements. Micarta, FRN, and G10 were bandied about but all we had were opinions and personal experience. Does anyone here have knowledge about where to go to find properties like heat conductance, fire resistance, or thermal insulation properties of the various handle materiala available out there??


Stay safe! Stay sharp!
 
lesoleilnoir,

Good starting point. Have Micarta and G10 pretty well wrapped up (G10 appears to be an upgared Micarta). On to FRN and maybe I can post the results here.

Thanks!

Stay safe! Stay sharp!
 
Java,

From McMaster:

"Grade G-30 Glass Polymide Garolite: Made of glass fabric bonded with a polymide resin, this laminate can withstand extreme heat while maintaining its excellent mechanical strength, dimensional stability, and electrical characteristics. Meets UL-94V0 standard and is resistant to gamma radiation. Tensile strength is excellent. Impact strength is excellent. Excellent electrical insulator. Difficult to machine. For use indoors. Temperature range is -20° to 500°F."
 
lesoleilnoir,

Thanks dude! Found out some more on the Ridout Plastics page. G10 seems to be an upgraded Micarta available under a couple of brand names. G30 looks like a dream material for heat resistant handles but the cost is almost 50 times that of G10. Machining G30 might pose significent problems also. Ridout recommends the use of diamond tipped cutters and high speed carbide routers for G10. No listing at Ridout for G30.

Thanks for the info so far. Here's the Ridout sheet on G10.

Not that up on French but is that Dark Sun or Night Sun??

Stay safe! Stay sharp!


This material combines high mechanical strength, good electrical properties, and excellent moisture resistance. These properties prevail at elevated temperatures. Flame retardant grades are available. They are used as structural members, slot insulation, wedges and panels.
GENERIC MATERIAL NAME: Epoxy / Glass
BRAND NAMES: Micarta®, FR-4 & G-10
MATERIAL CHARACTERISTICS: Continuous woven glass epoxy, Extremely high mechanical strength, Low water absorption
MAXIMUM WORKING TEMPERATURE (°F/°C): 302°F / 150°C
CHEMICAL RESISTANT TO: Broad chemical resistance
MILITARY SPEC: MIL-P-18177-GEE
THIS ITEM IS ALSO AVAILABLE IN: Sheet, Rod & Tube
CUTTING / MACHINING TIPS: Diamond tipped cutters, High speed carbide routers.
 
Java,

Yup, Black Sun. The one who bestowed the nik on me never did explain where he got it from or why he called me that, but I like it anyways.

I was thinking more on this one yesterday. Does the handle need to be synthetic? I don't know for sure, but I'm guessing that coral is probably extremely heat resistant. Maybe stone of some sort?

Here's one from left field, Pyrex. I know, I know, glass???? I dropped a pyrex measuring cup off a counter onto a concrete floor and the sucker just bounced, end of story.

If you really wanted to fork out the dough, I'm sure there is some type of industrial ceramic that could be used.

As for cutting implements, I've only used standard fiberglass reinforced cuttoff discs and Al.ox grinding bits. I'm sure carbides and diamond work great, but not a neccesity(sp?).

Just a few more thoughts... my $.02 USD.

Regards,
Lesoleilnoir
 
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