Polystyrene Foam Ball, Two Piece, Hollow with Rabbet

Polystyrene Foam Spheres - Hollow with Rabbet

These high-density, medium-pored polystyrene spheres are an essential foundational material for structural and creative projects. Engineered for lightweight stability and ease of modification, they provide a uniform, spherical base for everything from architectural massing to complex film props. Available in a wide range of diameters, these balls are selected by professionals for their consistent surface quality and structural integrity.

Applications:

• Architectural Model Making: Ideal for representing spherical structural elements, landscaping features, or abstract massing studies. Larger spheres can be utilised to create terrain contours or topographical focal points in large-scale site models.
• Film & TV Scenic Arts: A versatile "blank canvas" for prop making. These spheres are frequently used as the internal core for planets, oversized futuristic orbstacles, or organic sculptural elements. Their lightweight nature makes them perfect for overhead suspended rigs where weight distribution is a safety concern.
• Prototyping & Product Design: Useful for ergonomic hand-held studies or testing spherical mechanical clearances in early-stage product development. The foam can be easily hollowed or sanded to refine specific geometries.
• Exhibition & Display: Provides a high-impact, low-weight solution for window displays and gallery installations. The surface can be coated or laminated to achieve a professional high-gloss or textured finish.

Key Features:

• Ease of Modification: The medium-pored structure allows for clean cutting using a professional hot-wire cutter or a sharp scalpel. It can be sanded smoothly to eliminate the slight texture of the expanded beads.
• Chemical Compatibility: These spheres are designed to be used with polystyrene-compatible adhesives (such as UHU Por) and water-based paints. Note: Avoid solvent-based adhesives and aerosols which may dissolve the foam.
• Structural Variety: 150mm upwards are available as two-piece hollow variants with a secure rabbet joint, making them ideal for internal electronics or lighter weight requirements.
• Surface Preparation: The surface is highly receptive to being plastered, coated in resin (epoxy-based), or covered in papier-mch and fabric for diverse textural finishes.

Technical Specifications:

• Material: Expanded Polystyrene (EPS), Medium-pored
• Structure: Two-Piece Hollow
• Diameters: 150-500mm
• Colour: Standard White
• Workability: Compatible with hot-wire cutters and polystyrene-safe glues