McFarlane Aviation Products - CS085X36X36G

Part Number: CS085X36X36G

COWL SAVER, 36" x 36"

Product Details

Recommended for larger aircraft. Allows fabrications of straight, curved or irregular shaped baffle seals that cannot be cut from 3 inch strips.


Thickness Size Color
.085 inches 36 in x 36 in Black/Gray




Cowl Saver™ Baffle Seal Material with Bi-Flex™ Technology

Reduce airframe vibration, stop cowl and firewall cracks 

You can feel the difference in the cockpit!


Baffle Seal Friction Causes Airframe Vibration and Destroys Cowls

Typical silicone rubber baffle seals have a coefficient of friction among the highest of any known material. This friction transfers engine vibration into your cowl and firewall causing fastener fretting, fatigue, cracking, chaffing and airframe vibration.


Cowl Saver™ Baffle Seal Material has 30 Times Less Friction!

  • One side is silicone and the other is a low friction Teflon coated rubber unique to the patented Cowl Saver™ baffle seal material
  • Cowl Saver™ dramatically reduces the friction between your cowl and baffle seals
  • Half of the engine vibration you feel in the cockpit is from baffle seal transfer


Low friction Saves You Money!

  • Reduces transfer of vibration to the engine cowl and airframe
  • Eliminates cowl erosion
  • Extends baffle seal life
  • Reduces expensive cowl and cowl fastener repairs
  • Reduces fatigue and cracking in baffles, cowl skins and firewall
  • Cowling even goes on easier!
You will feel the difference! Satisfaction GUARANTEED!
36-month Money Back Guaranteed!


Unbeatable performance



Bi-Flex™ Technology
Bi-Flex™ Technology utilizes a laser engraved waffle pattern to provide the ideal flexible seal for maximum cooling, while retaining rigidity on the lower half of the seal to prevent the baffle seal from blowing past the proper seal position against the cowl.





18 in X 36 in


36 in X 36 in


3 in X 36 in with Bi-Flex™


3 in X 108 in with Bi-Flex™


3 in X 156 in with Bi-Flex™

Color: Black/Gray
Thickness: 0.085 in

Also available as convenient Baffle Seal Repair Kits


Note: For proper function, install Cowl Saver™ material so that only the low friction (black) side touches the cowl's inside surface. Carefully plan the baffle seal installation before cutting the material.


Baffle seals created using this product are protected by U.S. Patent No. US 8,070,099 B2




Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Eligibility Chart

Frequently Asked Questions

How much Cowl Saver material goes above and below the rivets?
Why should I purchase the Cowl Saver Scoring Tool, P/N TOOL120, if the Cowl Saver material is already scored?
My cowl seal material keeps blowing past the engine baffling creating a big air leak. Will Cowl Saver prevent this?
Should I buy a 3" roll or a flat sheet of Cowl Saver baffle seal material?
What is Bi-Flex and will it cost more than standard baffle seal material?
Which side of Cowl Saver goes against the cowl?
Why don’t we use pop rivets in P/N RIVET-KIT-2 instead of soft rivets?
Soft rivets are too hard on my hands to install, can you offer an installation tip?
I have a Cessna 185 with an IO-520-D, can I install this material?
I have a Cessna 182R with an O-470. My baffle seals do not mount on the metal shielding around the engine, rather it actually mounts in the cowling. Can I install this material?
Is Cowl Saver baffle seal material FAA-PMA approved or have an STC?
My baffle seals attach to the cowl instead of the engine baffles. Can I use Cowl Saver?
How do I repair a damaged cowl before installing Cowl Saver?

Related Videos

Product Feature: Cowl Saver

Cowl Saver Baffle Seal Material - Black side against cowling

Related Items

Please verify product details for suitability for your application.

warningWARNING: Cancer and/or Reproductive Harm -