Definition
A liquid product applied to aged aircraft fabric covering or dope finishes to restore flexibility and resilience by penetrating the existing finish and replenishing the plasticizers that have evaporated or broken down over time.
Plain English
A liquid you brush or spray onto old aircraft fabric coatings to soften them up and bring back some of their original stretch, instead of stripping and recovering the whole surface.
Context Anchor
Seen in fabric aircraft covering, finishing, and refinishing work.
Derivation
From the Latin 'juvenis' meaning 'young.' To rejuvenate is to make young again — which is exactly what this product attempts to do for old, brittle fabric finishes.
Why Pilots Care
Keeps fabric coverings from cracking or separating, preserving structural integrity and airworthiness of older aircraft.
Intuition Check
A rejuvenator is not a general cleaner or a structural repair. It treats the old coating on fabric; it does not replace damaged fabric or make the aircraft automatically airworthy.
Example Sentence 1
After inspecting the wing covering, the technician applied a rejuvenator to soften the aging dope and restore some of its flexibility.
Example Sentence 2
After the rejuvenator treatment the fabric passed the tension test and regained its original give.