Here is some information I received from Permanon.
“ Prep before a Permanon application simply involves making sure it's thoroughly clean. Rinse, wash with a detergent that rinses clean and has no additives (many detailers like to use Dawn Original dish detergent), rinse thoroughly, then apply Permanon immediately, and dry with a microfiber or other lint-free cloth. If you're doing this under the sun, then to avoid water spotting, dry the surface before applying Permanon, then apply Permanon in smaller sections and wipe dry immediately.
I've attached an area coverage charge to help you determine how much Permanon you'll need based on the square footage you need to seal. I recommend you order extra as most people over-apply (which is unnecessary and only wastes the product, but it tends to happen anyway), and it's good to have more on hand for maintenance applications down the road.
Permanon cannot adhere to itself, therefore it cannot be layered. One thorough application is all that's required until it starts to wear away and needs a maintenance application to fill any gaps in the protection.
First time applications on any fiberglass or Gel Coat surface should be applied at a 10% mix to make sure you're filling the pores of the microstructure. Fiberglass and Gel Coat surfaces are much more porous than the clear coats applied to cars. Then maintenance applications can be applied at a 5% mix.
Application instructions are included with every order. You can also find a link to a PDF copy of the instructions at the bottom of our FAQ's page, which is also where you'll find answers to these and many other questions. Here's a direct link:
https://www.permanonfinishes.com/faqs “