Just stumbled across your article when looking for uv proofing silnylon. A very clearly written article by the way.
Ordered the other week a tarptent SS2 and will definitely put on an extra layer of sillicone coating on the floor (inside and out). But am wondering would it also be a good idea to put a coating on the outer tent in order to give it extra uv protection straight away. Or am I better of in using the tent for a few weeks and then applying the coating? The tent will mainly be pitched during the evening/ night however there will be a few times it will face the light of day.
Hope you or soomeone else can shed some light on what is best for me to do.