Generate Your JOY

G JOY Materials

Premium gypsum casting materials for artists, studios & classrooms.

Everything for Gypsum Casting — from first pour to finished piece.

Our materials

Products

Two honest workhorses for casting — one for everyday creativity, one for casts that need to go the distance.

G JOY Plaster of Paris

Fine white molding plaster #1 — smooth, dependable, and easy to mix. Made for molds, sculpture, and art & craft projects where clean detail matters.

1 LB2 LB4 LB

Resealable bags for hobbyists, classrooms & studios.

G JOY Hydrocal White

High-strength gypsum cement for durable casts, model making & professional work. Harder and tougher than regular plaster — a studio favorite when strength counts.

1 LB2 LB4 LB

Resealable bags for serious casting projects.

Both are available on Amazon and Etsy — see Where to Buy.

For schools, studios & workshops

Studio & Classroom Cases

Teaching a class? Running a studio? Stock up with bulk cases of 2 LB bags — the same plaster your students already love, packed for groups and priced for programs.

  • Consistent quality in every bag, case after case
  • Easy to portion for groups of any size
  • Built for schools, camps, studios & workshops
5-pack 10-pack 15-pack 20-pack

Cases of 2 LB bags · Plaster of Paris & Hydrocal White

Get wholesale pricing
Something new is curing

Flexible Thin Brick Coming soon

Real-brick look, featherweight feel. Lightweight flexible brick veneer sheets for accent walls & DIY projects — no mortar, no mess.

We're perfecting the formula now. Want first access to samples and launch news? Join the waitlist — we'll write to you when it's ready.

Join the waitlist
Ideas to try

Projects & Learning

A bag of plaster is a weekend waiting to happen. Step-by-step guides are on the way — here's a taste.

Fossil Casting

Press shells and toy dinosaurs into clay, pour plaster, and dig out a fossil bed older than homework.

Mini Bricks & Dioramas

Cast tiny bricks and stones, then build the castle, the ruin — or the whole tiny town.

Garden Stones

Handprint stones, paw prints, leaf impressions — weather-tough keepsakes for the yard.

Keepsake Hand Molds

Tiny hands don't stay tiny. Capture them in plaster before the next growth spurt.

Get G JOY

Where to Buy

Find our materials where you already shop.

Amazon

Our full range with fast Prime shipping — retail bags and studio cases.

Visit our store

Etsy

Our small-batch shop with studio favorites and craft-ready picks.

Visit our shop

Faire Coming soon

Wholesale marketplace for retailers — we're setting up our storefront.

Opening soon
Talk to us

Contact

Questions about a project, an order, or a classroom full of eager casters? Write to the right inbox — a real human replies.