First time using polymer clay (fimo). Tried to put glossy varnish on the blue helmet but it cracked pretty badly (used a random varnish from the art store) and my acrylic paint

Fimo 1oz Water Based Gloss Varnish

How to use Fimo varnish on polymer clay? - STUDIO ARTESANIA

How to use Fimo varnish on polymer clay? - STUDIO ARTESANIA

Mont Marte Clay Varnish Gloss Signature 4.05oz (120ml) Clay

Look, we need to talk about painting polymer clay - The Blue

How to use Fimo varnish on polymer clay? - STUDIO ARTESANIA

Mont Marte Clay Varnish Gloss Signature 4.05oz (120ml) Clay

Glues and Coatings in online store

Getting Started with Polymer Clay: Using Gloss Varnish

Mont Marte Clay Varnish Gloss Signature 4.05oz (120ml) Clay

Look, we need to talk about painting polymer clay - The Blue

Understanding Polymer Clay Glazes, Sealers, and Varnishes