What is UV Smooth Prime?

UV Smooth Prime is a waterborne urethane.  It is used on composite aircraft to protect the structural epoxy of your composite surface from harmful UV light.  It also provides an easy-to-apply, sandable coating and fills pinholes in your composite surfaces.  When used in conjunction with Superfil, these products give a marvelously smooth platform for your final 2-part epoxy and top coats.  The result~ a beautiful paint job!

How do I use it?

Smooth Prime may be applied with a foam roller.  It's that easy.  Follow the mixing instructions on the can.  Apply 3 coats and allow it to dry.  Sand it to get a reasonably smooth surface.  Then apply 3 more coats either by roller or by spraying.  Allow this to dry well and sand again gently until you have the level surface you desire.

After applying UV Smooth Prime ~

Let it dry for 7 days.  If you live in a cold, damp climate invest in a dehumidifier ~ buy or rent it.  ALL WATER must be out of the UV Smooth Prime before it is over-coated.  Next, you will need to seal the UV Smooth Prime with a 2-Part Epoxy Primer like Poly-Fiber EP-420 or Randolph Epibond Primer; both of these are available through us.  Allow the epoxy primer to cure for 1 week.

What coatings do I use for my top coat?

How do I get my UV Smooth Prime?

UV Smooth Prime may be purchased directly through us and through our distributors.  Call us toll free at 800-362-3490 to order or to find the distributor nearest you.