Why are gliders almost always painted white?
to easily hide in clouds
to reduce solar heating
to make gliders distinguishable from other aircraft
to allow quick replacement of damaged parts
Since fiberglass resin softens at high temperatures, white is used almost universally to reduce the temperature rise caused by solar heating. Less popular non-fiberglass gliders (those made of aluminum and wood) can be painted any color.
reach: rather globalaviationcolorsglidersphysicstechnologywhite
Answers by country
to easily hide in clouds
to reduce solar heating
to make gliders distinguishable from other aircraft
to allow quick replacement of damaged parts
answers
the Netherlands53
Poland19370
Switzerland108
Republic of Ireland53
Austria138
Australia160
Germany998
the United Kingdom466
Canada97
Unknown39
the United States1272
Singapore40
Nigeria47
India848
Malaysia43
Pakistan56
Ghana30
the Philippines95
South Africa47
the United Arab Emirates30