I use Monokote and more often Ultrakote and don't use any Balsrite with them. Recently I've started using Coverite Coverlite on indoor models and OTs. It looks like tissue when applied, but is some kind of polyester. It has no adhesive backing, so you need to coat the framework with Balsarite first, then apply the Coverlite using a heat sealing iron. The purpose of the Balsrite is its adhesive properties.