ROCK MOLD-BOULDERS (5X7)

Turn your outdoor spaces into a realistic rocky landscape with the ROCK MOLD-BOULDERS (5X7). This reusable mold creates mid-sized, life-like boulders at a practical 5-by-7-inch scale, ideal for garden rock features, pond edging, and decorative accents in any landscape project.

What makes this mold unique

• Realistic texture at a consistent 5x7 footprint—each cast delivers convincing rock surfaces that blend naturally with existing stone.
• Reusable and durable—designed for repeated use, helping you bulk-create matching rocks for cohesive designs.
• Material versatility—works with common casting materials such as cement-based mixes, plaster, and epoxy resin, giving you flexibility for indoor or outdoor projects.
• Lightweight when finished—select durable mixes to produce rock forms that are easier to install than natural boulders.
• Easy release and cleanup—a proper release agent minimizes sticking, making demolding clean and simple.

Ideal uses and project ideas

• Garden and landscape features: create a natural-looking border, stepping-stone-friendly boulders, or a cluster of rocks to anchor a rock garden.
• Water features: edge ponds and fountains with cast rocks that resist weathering and add texture to the scene.
• Terraced or retaining designs: stack multiple 5x7 rocks to build small rock walls or raised beds with a cohesive look.
• Indoor display: build decorative rock elements for interior planters, green walls, or display shelves using inert casting materials.

How to cast in 5x7

1. Prepare your workspace and apply a release agent to the interior of the mold to ensure easy demolding.
2. Mix your chosen casting material to the manufacturer’s recommended consistency.
3. Pour the mix into the mold, tapping gently to release trapped air and ensure even fill. If needed, add in layers to prevent air pockets.
4. Let the cast cure fully according to the material you used. Avoid moving the mold during cure to prevent deformities.
5. Demold carefully and allow the rock to finish hardening. If you want a more natural look, apply washes of color or stain and seal for outdoor durability.

Care, maintenance, and pro tips

• Rinse with water after demolding to remove residue. Let dry completely before storage.
• Store molds flat in a cool, dry place to preserve the flexible edges and prevent warping.
• For best results, experiment with light color washes or dry brushing to mimic sun-bleached or shaded rock texture.