heat shield in a FAL custom handguard - Pirate4x4.Com : 4x4 and Off-Road Forum

usmcdoc14 · 11-25-2006, 09:44 AM

I am making a full floating handguard for my Fal out of 2in ID carbon fiber tube and some 1.5-2in thick aluminum "bulkheads" at either end. Now I know the carbon fiber can handle some heat but was thinking of putting a shielding material on the inside to just be safe and to keep the handguards cool.

Aluminum foil epoxied on?

I dont want to add a shitload of weight. I can put just about anything can be layed in there as the top is "split" as the gas tube sticks above it
like this but not with all the oval holes

and if I do add holes they will be round and aluminum grommited to prevent splitting and to look cool

basketcasejeep · 11-25-2006, 10:15 AM

So what do you want to know? Use heavy duty aluminum foil?

Just do it.

Joe_W · 11-25-2006, 10:21 AM

stupid non-gun knowledgable question

Wouldn't aluminum grommets just transfer heat? For that matter wouldn't foil just transfer heat rather than shield?

Dunno..just wondering

usmcdoc14 · 11-25-2006, 10:24 AM

Quote:

Originally Posted by basketcasejeep

So what do you want to know? Use heavy duty aluminum foil?

Just do it.

If there is something better than aluminum foil

usmcdoc14 · 11-25-2006, 10:26 AM

Quote:

Originally Posted by Joe_W

stupid non-gun knowledgable question

Wouldn't aluminum grommets just transfer heat? For that matter wouldn't foil just transfer heat rather than shield?

Dunno..just wondering

it would reflect it unless it is in contact then it would radiate it.
The heat shields under your car are just aluminum spaced away from the cat/exhaust

animator · 11-25-2006, 10:30 AM

Aluminum would definitely be the way to go.

Joe_W · 11-25-2006, 10:31 AM

Quote:

Originally Posted by usmcdoc14

it would reflect it unless it is in contact then it would radiate it.
The heat shields under your car are just aluminum spaced away from the cat/exhaust

Yea I got to thinking about just that after I posted...oh well

usmcdoc14 · 11-25-2006, 10:34 AM

Quote:

Originally Posted by animator

Aluminum would definitely be the way to go.

don't mock my ghetto/rednck gunsmithing

mike · 11-25-2006, 10:48 AM

Gil, heat shields work cause they're spaced away. If you can pull that off, it'll block the heat, if it's touching at all it'll transfer heat very efficiently

usmcdoc14 · 11-25-2006, 10:51 AM

Quote:

Originally Posted by mike

Gil, heat shields work cause they're spaced away. If you can pull that off, it'll block the heat, if it's touching at all it'll transfer heat very efficiently

ya I know

but its is proving hard to find that layered/spot welded/aluminum shit they make head sheilding out of.

mike · 11-25-2006, 10:56 AM

yea, you'd have to get AL sheet and form it then spot weld it

usmcdoc14 · 11-25-2006, 11:00 AM

Quote:

Originally Posted by mike

yea, you'd have to get AL sheet and form it then spot weld it

and I was looking in the wrong place. I think flexible automotive sheet stuff would work better

300sniper · 11-25-2006, 11:04 AM

how 'bout using some .049 6061 tube with stand offs for the heat shield?

usmcdoc14 · 11-25-2006, 11:08 AM

Quote:

Originally Posted by 300sniper

how 'bout using some .049 6061 tube with stand offs for the heat shield?

you mean the .049 6061 tube AS the heat sheild right?

basketcasejeep · 11-25-2006, 11:08 AM

Quote:

Originally Posted by usmcdoc14

If there is something better than aluminum foil

There is. Heavy duty aluminum foil.

I think I've also seen some thin aluminum in rolls for roof flashing. I suppose that would work if it is not too thick and heavy.

300sniper · 11-25-2006, 11:11 AM

Quote:

Originally Posted by usmcdoc14

you mean the .049 6061 tube AS the heat sheild right?

yes, with maybe .125-.250 spacers between the carbon fibre tube.

usmcdoc14 · 11-25-2006, 11:11 AM

Quote:

Originally Posted by basketcasejeep

There is. Heavy duty aluminum foil.

I think I've also seen some thin aluminum in rolls for roof flashing. I suppose that would work if it is not too thick and heavy.

that would work with some epoxy in strips to "stand it off" AND adhere it

or maybe some high temp RTV.

hmmm what would be better?
see now we are working in the realm of cheap

CJ5inFourWheelDrive · 11-25-2006, 12:03 PM

Doc, check this out, it should fit the bill.
http://www.denniskirk.com/jsp/search...eafCatId=31201

basketcasejeep · 11-27-2006, 11:08 AM

Quote:

Originally Posted by usmcdoc14

that would work with some epoxy in strips to "stand it off" AND adhere it

or maybe some high temp RTV.

hmmm what would be better?
see now we are working in the realm of cheap

Hmm... JB weld.

JB, JB quick, or putty?

11-25-2006, 09:44 AM	#1 (permalink)
usmcdoc14 Fistful of Boomstick Join Date: Aug 2002 Member # 13344 Location: Norfawk, VA Posts: 12,283	heat shield in a FAL custom handguard I am making a full floating handguard for my Fal out of 2in ID carbon fiber tube and some 1.5-2in thick aluminum "bulkheads" at either end. Now I know the carbon fiber can handle some heat but was thinking of putting a shielding material on the inside to just be safe and to keep the handguards cool. Aluminum foil epoxied on? I dont want to add a shitload of weight. I can put just about anything can be layed in there as the top is "split" as the gas tube sticks above it like this but not with all the oval holes and if I do add holes they will be round and aluminum grommited to prevent splitting and to look cool __________________ Doc-14 Tactical Products: When it absolutely, positively needs to be made from random crap found in the back of my garage. You cant ban knowledge, learn to make your own guns right Here. New York, Colorado, Maryland, Conneticut….is your state next? Yes it is. Write, Vote and Fight.

11-25-2006, 10:15 AM	#2 (permalink)
basketcasejeep Registered User Join Date: Aug 2004 Member # 34936 Location: GA Posts: 442	So what do you want to know? Use heavy duty aluminum foil? Just do it. __________________ . . . but in the Kalahari it is always Tuesday, or Thursday, or whatever day you like . . .

11-25-2006, 10:30 AM	#6 (permalink)
animator Rapey Join Date: Sep 2002 Member # 13701 Location: Plano/Dallas Posts: 4,083	Aluminum would definitely be the way to go. __________________ Think you're a marksman? Test your skills by joining the 200yd Iron Sight Challenge happening NOW in the OSR Forum: http://www.pirate4x4.com/forum/outdo...-may-31-a.html

11-25-2006, 10:48 AM	#9 (permalink)
mike Registered User Join Date: Feb 2000 Member # 144 Location: Northern Mexico... er.. AriDzona Posts: 6,867	Gil, heat shields work cause they're spaced away. If you can pull that off, it'll block the heat, if it's touching at all it'll transfer heat very efficiently __________________ That's because you're a pinko fascist. - Haole I know what antidisestablishmentarianist means Last edited by mike; 11-25-2006 at 10:48 AM.

11-25-2006, 10:56 AM	#11 (permalink)
mike Registered User Join Date: Feb 2000 Member # 144 Location: Northern Mexico... er.. AriDzona Posts: 6,867	yea, you'd have to get AL sheet and form it then spot weld it __________________ That's because you're a pinko fascist. - Haole I know what antidisestablishmentarianist means

11-25-2006, 11:04 AM	#13 (permalink)
300sniper SHOOT TO THRILL! Join Date: Jan 2004 Member # 26382 Location: Greenwood, Ca Posts: 7,146	how 'bout using some .049 6061 tube with stand offs for the heat shield? __________________ 87 4runner d44f/9"r full width, 5.38/5.43/ARBs, superior shafts, ctm's, twin stick 4-1 dana 300 behind toy t-case, allpro springs f/r, 39.5 iroks on aluminum trail ready bead locks ΜΟΛΩΝ ΛΑΒΕ I'm just a peckerwood who lives in the hills with too many guns.

11-25-2006, 12:03 PM	#18 (permalink)
CJ5inFourWheelDrive Registered User Join Date: May 2003 Member # 19668 Location: Central, PA Posts: 906	Doc, check this out, it should fit the bill. http://www.denniskirk.com/jsp/search...eafCatId=31201 __________________ (1975 Jeep CJ-5) Being built: 2x4 A-500C frame, C&C 14 bolt w/discs & Detroit, D44 mini-spool, Flat Tops, Mad Mac Double Arms, 4.56's, SM420, D300, AA & Novak adapters, SOA on 2in. BDS YJ springs with a reversal, extended wb; 6in. front, 3in. rear, TJ flairs, hummer rims, hydroboost w/68' Vette M/C…

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