Maintenance Manual LS4
Issued: May 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
12 Recommendations for maintenance and care of gelcoat surfaces
12.1 General
Protect gelcoat with silicone free car polish or “Schwabbel wax” (see
section 12.2).
This wax film protects gelcoat against embrittlement and cracking due to
ultra violet light.
If you use a polishing machine, be careful not to damage seals, anti-
collision colour markings and registration signs.
According to paint manufacturer recommendations the following mediums
may be used for cleaning and care:
Suitable: Water with washing-up liquid added in recommended quantities,
car polish with or without silicone
Suitable with reservations: Tar remover based on petrol for cars. Alcohol,
like spirit or isopropyl alcohol. Reservations are, that these liquids should
only be used for wiping off, not for soaking with rags!
Unsuitable: Strong solvents and thinners, they may decompose gelcoat and
cause local shrinking.
Completely unsuitable: Trichloroethylene, carbon tetrachloride or similar
hydrocarbon chlorides. These liquids destroy the gelcoat.
Other mediums must be checked for suitability before use!
Caution : UP-gelcoat shows distinctive weathering marks due to changes of
temperature, ultra violet radiation and humidity unless regularly polished with
hardwax.
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