Want to learn how to create the classic Jesmonite terrazzo style? Whether you're new to Jesmonite, or just want a refresher, Claire is here to show you how to create the homeware trend that doesn't seem to be going anywhere!
Love the colours & can I ask I’m new to jesmonite & watched most of your videos. Can I ask I get loads of pin holes in bottom but only after sanding. I sand straight away is this my problem should I wait the 24hrs? Will it reduce the pin holes🙏
Hi Kathy, thanks for watching! The little pinholes are tiny bubbles that haven't quite made it to the surface and are only revealed after sanding. There are things you can do to reduce them, though: 1. Tap and vibrate your mould for as long as you can to help the bubbles to the surface 2. Add a couple of drops of Jesmonite retarder. This thins the liquid a little, allowing more bubbles to escape and gives you much more time to tap before it sets 3. Pour your Jesmonite in a slow thin stream, this allows the bubbles to pop on the way down 4. Use a cocktail stick to pop any visible bubbles. Waiting longer to sand probably won't make a difference, as the bubbles can only escape at the liquid stage. Hope this helps! 🙂
Hello,thank you for your lovely videos..it really helps a lot.May I know if you use a wet sanding paper or a wet/dry one?Also can I use an electric sander with wet sanding paper?I have a small mouse sander and find it difficult to sand large terrazzo pots but I still dont know if i can use my mouse sander with my dry sand papers😏
So glad they help! We always prefer wet sanding for a smoother finish (and you can wash and reuse the same piece as you go!) We wouldn't recommend using anything electrical around water for safety reasons, but check with the manufacturer if you're ever in doubt. You could try using a dry sand with your sander at first, then refine with wet sandpaper by hand after 🙂
