What to use to seal Cam Covers... - ZR-1 Net Registry Forums

Ccmano · 04-03-2009

The manual calls for Permabond A136, which is somewhat difficult to get ahold of.
Loctite "equivalent" is 518 but if you check the spec's it is not quite the same particularly in it's sealing thinkness.
Permatex has "High Temp Anaerobic Flange Sealant" that spec's very similar to the Loctite 518, but still has much less sealing thickness than A136.
There also Permatex 1B but it's not anaerobic, it's alcohol based.
What is everyone using here? Anybody use "The Right Stuff"?

H

-=Jeff=- · 04-03-2009

Limey (Kurt) Sells the A136. Jerry sells the 518

As far as I know the 518 Loctite and the permatex are the SAME.. I have the NAPA packaged Permatex stuff.. I just need cam covers now

A26B · 04-03-2009

Hans,
Loctite 518 is what Marc Haibeck uses......

I did some research awhile back, since Permabond A136 is pretty old chemistry. Permabond now makes MH196 with, in my opinion, improved properties. It has a higher viscosity, making it easier to apply & stay put during assy and faster fixture time.

PERMABOND
14 Robinson St, Pottstown, PA
20 Worlds Fair Dr, Somerset, NJ

Application assistance 1-800-640-7599
Customer Service 1-800-714-0170

www.permabond.com

Whichever you decide on, make sure it's fresh, not past the use-by date. The Loctite 518 has an expiration date on the bottom seal area of the tube. It's widely sold on eBay but virtually all of it is past date.

04-03-2009	#1
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	What to use to seal Cam Covers... The manual calls for Permabond A136, which is somewhat difficult to get ahold of. Loctite "equivalent" is 518 but if you check the spec's it is not quite the same particularly in it's sealing thinkness. Permatex has "High Temp Anaerobic Flange Sealant" that spec's very similar to the Loctite 518, but still has much less sealing thickness than A136. There also Permatex 1B but it's not anaerobic, it's alcohol based. What is everyone using here? Anybody use "The Right Stuff"? H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. Last edited by Ccmano; 04-03-2009 at 07:09 PM.

04-03-2009	#2
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: What to use to seal Cam Covers... Limey (Kurt) Sells the A136. Jerry sells the 518 As far as I know the 518 Loctite and the permatex are the SAME.. I have the NAPA packaged Permatex stuff.. I just need cam covers now __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

04-03-2009	#3
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: What to use to seal Cam Covers... Hans, Loctite 518 is what Marc Haibeck uses...... I did some research awhile back, since Permabond A136 is pretty old chemistry. Permabond now makes MH196 with, in my opinion, improved properties. It has a higher viscosity, making it easier to apply & stay put during assy and faster fixture time. PERMABOND 14 Robinson St, Pottstown, PA 20 Worlds Fair Dr, Somerset, NJ Application assistance 1-800-640-7599 Customer Service 1-800-714-0170 www.permabond.com Whichever you decide on, make sure it's fresh, not past the use-by date. The Loctite 518 has an expiration date on the bottom seal area of the tube. It's widely sold on eBay but virtually all of it is past date. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. Last edited by A26B; 04-03-2009 at 06:44 PM.*