Quote:
Originally Posted by BamZipPow
Yup...UV damage (sun termites). 
This was some old political signs. Not sure if the side I had out was UV protected or not. I did paint it with some flat black when I installed it to see if it would stop any UV degradation or not. Obviously...it didn't. I even tried some Tyvek tape and painted over that, too! That piece and the hatch piece are the only ones that have broken down so far.
I have noticed that my oldest Coroplast hasn't broken down at all...and it's originally black. It has faded over time but it's still hanging in there without becoming brittle.  |
I worked for a fella in Lubbock during college who restored fabric and wood aircraft.After the Dacron was doped he applied the 'Hindenburg' aluminized undercoat before the color coats went on as an absolute UV block.
Many of the EAA homebuilders at Oshkosh told me that they do the same thing with their ultralites.
When I did sport parachuting we were instructed to get the Nylon canopy out of the sunlight as quick as possible to extend their service life.
Quick! Run for your lives! Solar termites are everywhere!!!!!!!!!!!!!!!!!!!
