The German magazin Yacht has publisched a video about great method for very early detection of
Osmosis. Highly useful for
purchasing a
used boat.
Just use a normal UV Light and yellow protection glasses. Any
paint, antifouling and primer needs to be removed from the surface prior to the test. Gelcode does not need to be removed.
They say this method allows to see
Osmosis up to 5 years prior to having the
classic bubbles.
Video in German here:
https://youtu.be/1rr9GfVXDJ0