The laser waterslide decal sheets are for use with a laser printer. You need to clearcoat them prior to soaking them for application. I have the inkjet sheets and I use Krylon ACRYLIC clear for sealing the decal so they don't run when soaked.

FWIW - be careful with decals much over 3" as they tend to "spiderweb" if not handled VERY carefully.

With Solartex, I apply the decals and any trim paint, THEN I give the plane a THIN coat of clear. The thin coat seals the decals to the plane (no edge showing) and it makes the Solartex easier to clean since the dirt can not get into the weave of the fabric.