Glad you liked the video. Golden do make a pearl coloured paint, although I haven’t personally tried it. As for your question, if the beads are wooden then the paint will soak into the wood quite well but if the beads are plasic then the paint will sit on the surface and have the potential for being more likely to scratch off, so adding a clear glaze over the top would help protect any special painted designs you have added. I am new to using acrylic paints, so sadly I am not overly experienced to their longevity in a variety of situations.

I have used Polymer Medium Gloss as a varnish over alcohol inks on plastics and it has worked beautifully. In the side bar on the right, there is a link to the Golden website, their customer services team are very helpful. To be on the safe side, on this occassion I would advice you to contact them and see what they say. I would hate to ‘guess’ an answer and ruin your project for you.

Hope that helps a little. I tend to be someone who will give it a go and see if it works, but that would be on a test piece rather than a finished precious project

Best wishes

Billie