Reference

Cowl Saver vs Silicone

• Does Cowl Saver reduce the need for repairs?

  Yes, Cowl Saver reduces the need for repairs by reducing friction on the cowling that you would typically have with silicone rubber baffles. This eliminates cowl erosion, extends baffle seal life, and reudces expensive cowl and cowl fastener repairs. 

• How is the teflon coating on Cowl Saver an improvement over regular silicone?

  The teflon coating on the cowl side slides along cowling with ease. Regular silicone is rough on the cowling and does not slide easily. This friction transfers engine vibration into your cowl and firewall causing fastener fretting, fatigue, cracking, chaffing and airframe vibration.

• Is Cowl Saver easier to install then typical silicone rubber baffles?

  Yes, we offer pre-scored rolls for max flexability where the seals touch the cowling- this also helps with making it "pre-shapped" to want to lay the correction direction from the start. Scoring allows for the teflon material to be slightly stiffer than regular silicone, so it helps to maintain its shape over extended periods of time. For silicone baffles, you may have to take a heat gun (or something similar) to help with the pre-shape of the silicone to ned inward. McFarlane offers pre-scored rolls of cowl saver as well as unscored sheets that you can score yourself, using TOOL120. 

• Why should I use Cowl Saver instead of Teflon tape?

  Teflon tap can be used to line your seals which help prevent rubbing, however, when the tape quits sticking and it balls up, it could cause damage to the engine. The Teflon side of cowl saver is adhered to the baffle material to ensure it does not rub off due to engine vibration.