Technical data

13773-001
51-20
Page 26 30 Nov 2000
3. MAINTENANCE PRACTICES - COMPOSITE REPAIR PROCEDURES
Always perform repairs in a clean, heated, and well ventilated area with good lighting. Before attempting a
repair make sure all required tools, equipment, and material are ready.
WARNING:
Always use twice as many repair plies as the original lay-up in order to assure that
the original strength is achieved.
CAUTION: Many tools are needed to perform composite repairs properly. If you don’t have the knowl-
edge on using all repair tools properly, never attempt a composite repair. If proper proce-
dures are not followed, a minor repair can end up becoming an extensive repair.
Never allow hands or other contaminates such as oil to come into contact with the repair sur-
face after solvent cleaning. Never touch glass-fabric or release film with bare hands. The oils
excreted from your body will contaminate the repair, causing it to be substandard. Products
containing uncured silicones (some wax, oils, sealants, etc.) should never be used on a
composite structure. Silicone will contaminate surfaces and is extremely difficult to remove.