Can I use Sail Cleaner for my spinnaker?
Ultramar Sail Cleaner cannot be used on your spinnaker.
No, you cannot use Sail Cleaner on your spinnaker. Spinnaker cloth is often not very color stable.
It is better to clean a spinnaker with lukewarm water and Sprayhood & Tent Shampoo. You can then coat it with Sail & Spinnaker Coating.