PoscART 3-shaped silicone pebble mould, three pebble cavities in different sizes
PoscART 3-shaped silicone pebble mould, three pebble cavities in different sizes
Posca

PoscART 3-Shaped Silicone Pebble Mould for Custom Rock Crafting

$26.07
$26.07
RRP $27.97
Or 4 payments of $6.52 with
Add items to a quote for bulk pricing, approvals, or purchase orders. Free quotes back within 3 business hours.

SKU: UMMOULD3PEB

PoscART 3-Shaped Silicone Pebble Mould

A flexible silicone mould with three pebble cavities in different sizes and styles, made for casting plaster rocks you can paint.

The mould has three pebble-shaped cavities, each a different size and style, so one pour gives you a small set of rocks with some variety. It is made from silicone, which flexes so the set pebbles pop out cleanly and rinses clean for the next batch. Fill it with plaster of Paris; the 360g pack fills it twice. The cast pebbles have a rock-like surface for painting and decorating.

Suits rock painting without the hunt for river stones, classroom casting lessons, and makers who want a consistent shape for a series of painted pebbles or garden markers. Because it is reusable, one mould serves many sessions.

Grab the plaster to go with it, or pick up the rock art kit that bundles the mould, plaster and POSCA markers together. See the 180g plaster of Paris, the 360g plaster of Paris, the rock art kit with POSCA markers, the POSCA PC-5M and all craft surfaces.

Often ordered together

  • Silicone mould with 3 pebble shapes
  • Different sizes and styles in one mould
  • Flexible for easy release and cleaning
  • Reusable
  • Suits plaster of Paris and other casting materials
  • Sold as one mould
  • Casting plaster pebbles for rock painting
  • Classroom casting and painting lessons
  • Garden markers and painted stones
  • Handmade pebble gifts
  • Repeat batches for markets and events

Dispatch same business day for orders placed before 11am AEST. Free delivery on orders over $149. 30-day returns on unopened items. Government purchase orders accepted — request a bulk quote.

Specifications

Brand: PoscART

Product type: Silicone pebble mould

Shape count: 3 pebble shapes

Shapes: Different sizes and styles

Material: Silicone

Use: Casting custom pebbles and rock shapes

Reusable: Yes

Suits: Plaster of Paris and similar casting materials

Sold as: One mould

SKU: UMMOULD3PEB

Common questions

Everything people ask us about POSCA before they buy.

Read all FAQs Ask us

On porous surfaces (paper, wood, fabric, stone) POSCA is permanent once dry. On smooth surfaces (glass, ceramic) it can be wiped off with a damp cloth — or made permanent with a clear fixative spray.

Yes — heat-fix with an iron (no steam) and the colour survives gentle washing. For sneakers, seal with an acrylic finisher for durability.

POSCA ink is water-based, non-toxic and odourless — suitable for classrooms and kids' craft with normal supervision.

Use a clear acrylic spray such as Micador Crystal Clear. Apply light coats once the ink is fully dry.

Yes — add items to a quote and we'll respond within 3 business hours. Government purchase orders accepted.