What is the potential consequence of using expired dope?

Using expired dope can significantly compromise the integrity of the aircraft fabric covering. This is because expired dope may have undergone chemical changes that can affect its adhesive properties. If the dope does not adhere properly to the fabric, it can result in inadequate bonding. Consequently, this weak adhesion can lead to the fabric detaching from the structure of the aircraft. Such detachment not only undermines the aesthetic and protective functions of the covering but can also pose serious safety risks, potentially leading to structural failure during flight. This highlights the importance of using current and properly formulated materials in aircraft maintenance and repair.