Plaster Casting Guides

Sealing a white plaster tray with clear sealer beside a soft silicone mold
How to Seal & Waterproof Plaster Crafts
How to seal and waterproof plaster crafts — the best sealers, a step-by-step method, and the common mistakes that ruin a piece. Read more...
A collection of finished plaster craft projects styled on a shelf
15 Plaster Craft Ideas: Trays, Candles & Decor
15 plaster craft ideas — trays, candle holders, coasters, vases, ornaments, and gifts — with the easiest projects to start today. Read more...
Colored plaster pieces with pigment dishes and a soft silicone mold
How to Color Plaster: Pigments, Glitter & Metallics
Color plaster like a pro: pigments, glitter, and metallic finishes, plus the dosing trick that stops your colors drying two shades too light. Read more...
Plaster mixing station with silicone bowl, scale, and a soft silicone mold
How to Mix Plaster for Casting: Bubble-Free Pours
Mix plaster like a pro: the right water ratio, the slaking trick, and how to pour bubble-free castings every time. Read more...
Different plaster craft samples lined up beside soft silicone molds
Types of Plaster for Crafts: Which One to Choose
Plaster of Paris, alabaster, or high-strength casting plaster? A clear comparison to help you pick the right plaster for any craft project. Read more...
Two white plaster trays demolded from a soft frosted silicone mold on an oak table
Plaster Crafts: A Beginner's Guide to DIY Casting
Everything a beginner needs to start plaster crafting — choosing plaster, mixing, coloring, sealing, and the molds that make casting easy. Read more...
Plaster of Paris mixed to a smooth batter beside a soft translucent white silicone mold
How to Mix Plaster of Paris (The Right Way)
How to mix Plaster of Paris the right way: the correct water ratio, slaking and mixing times, avoiding lumps, adjusting the set, and safe disposal. Read more...
Plaster casts of different types beside a soft translucent white silicone mold on a craft table
Types of Plaster for Casting: A Maker's Guide
Confused by plaster types for casting? Compare Plaster of Paris, casting plaster, gypsum cements, and Jesmonite by strength, set time, and best use. Read more...
Smooth matte-white plaster cast beside a soft translucent white silicone mold on a craft table
How to Get Smooth Plaster Casts Every Time
Smooth plaster casting comes down to the right water ratio, gentle mixing, and a good mold. Get the numbers, bubble fixes, and a troubleshooting table here. Read more...
How to Make Plaster Light Houses Step by Step
How to Make Plaster Light Houses Step by Step
Make glowing plaster light houses at home with silicone molds: a beginner guide to mixing, bubble-free pouring, demolding, sealing, and styling them. Read more...
How to Make Plaster of Paris: The Complete Crafter's Guide
How to Make Plaster of Paris: The Complete Crafter's Guide
Learn how to make and use plaster of Paris step by step. Mix ratios, tips to avoid cracks, and how silicone molds help you get perfect results every time. Read more...
Plaster Casting Powder: The Beginner's Complete Guide
Plaster Casting Powder: The Beginner's Complete Guide
Plaster casting powder is a fine, odorless calcium sulfate material mixed with water to create detailed castings in silicone molds. Mix powder and water at a 3:1 ratio, pour slowly... Read more...
Easter Plaster Candle Cup DIY with Silicone Molds
Easter Plaster Candle Cup DIY with Silicone Molds
You can create elegant Easter candle cups using silicone molds and plaster or jesmonite. Pour, cure, and demold a reusable candle holder, then add wax or a refill candle. This... Read more...
How Much Plaster Do You Need? The Complete Casting Guide
How Much Plaster Do You Need? The Complete Casting Guide
To calculate how much plaster you need, measure your mold’s volume in milliliters and multiply by 1.6–1.8 depending on plaster type. Mixing the right amount prevents waste, cracking, and weak... Read more...
Casting with Silicone Molds: Plaster of Paris & Wood Glue DIY Guide
Casting with Silicone Molds: Plaster of Paris & Wood Glue DIY Guide
Learn how to cast Plaster of Paris in silicone molds using wood glue for stronger, smoother DIY creations. Perfect for home décor, crafts, and handmade gifts. Read more...
Mastering Plaster Casting: Tips to Improve Your Technique
Mastering Plaster Casting: Tips to Improve Your Technique
Boost your plaster casting results with expert mixing, pouring, and finishing tips. Learn techniques for smoother, stronger art and craft castings. Read more...
Plaster of Paris Craft Guide | Silicone Mould Casting Tips
Plaster of Paris Craft Guide | Silicone Mould Casting Tips
Learn how to mix and cast Plaster of Paris with silicone moulds. Step-by-step tips for beginners, safety, curing times, and creative techniques. Read more...