Aircraft Seal With a Center Hinged Control Surface
The seal is internal and requires the control surface to be removed for seal installation.
- Teflon Sealing Tape “Teflon Fabric Tape S–Seal” (non–adhesive)
- PVC Anti–Peel “tesa® PVC Safety Tape”
- Pre–Curved ”Mylar Gap Seal“
- “tesa® Transfer Tape” (2 sided adhesive tapes)
- Glass Cloth “Teflon Fabric Tape” with single side adhesive (optional)
- 3D “Turbulator Tape” (Zig Zag or Dimple Turbulator Tape)
Mylar Gap Seal
Pre–Curved Mylar is used for sealing the gap in-front of the control surface to increase performance of your sailplane. Mylar is attached to the upper and normally the lower surface of the wing bridging the gap and resting on the control surface. Pre–Curved Mylar is also normally found sealing the elevator and rudder. Pre-curved verse straight Mylar is normally used because it will continue the seal as the control surface is deflected down. It is important that you replace your mylar when it no longer is curved and doesn't seal with the control surface as they move.
Teflon Fabric Tape With Adhesive
This Teflon impregnated woven fiberglass tape is great for making a flexible airtight seal. Do not use Teflon ADHESIVE Tape for sealing on center hinge control surfaces, use Teflon Fabric Tape WITHOUT Adhesive. Application of Teflon tape with adhesive is best done with 2–3mm on the wing and the remainder on the control surface. Mylar then slides on the Teflon Tape making a smooth transition for airflow and Teflon Fabric makes an excellent airtight seal. Mylar also has a smooth rubbing surface to preserve your aircraft finish and reduce friction. You can use this tape as an anti–chafe tape.
NOTE: Teflon Tape With Adhesive starts as a brown or tan color. After 1–2 weeks in the sun it turns white.
V–Seal is generally used on the inside of the vertical stabilizer to seal the rudder. This works well and is easy to install on both the right and left inside of the vertical stabilizer once the rudder is removed. With some trimming and great care you can use this on the front and aft part of your canopy making it significantly quieter.