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Extruded Polystyrene (XPS) is a lightweight, rigid foam insulation sheet designed to reduce heat transfer. This product is commonly used for insulation in walls, roofs, and floors, as well as for packaging, model making, architectural models, and prototypes. It combines moisture resistance with easy cutability for versatile applications.

The sheet measures 1250 mm x 600 mm x 25 mm and has a density of 32–35 kg/m³.

EPS boards are typically cheaper and lighter but tend to absorb more moisture and offer lower insulation value per thickness. Extruded Polystyrene (this product) provides better moisture resistance and a higher insulation performance per thickness, making it a more durable option for exterior or moisture-prone environments.

Polyiso/PIR insulation boards generally offer higher thermal resistance per thickness and strong fire performance, which can lead to better overall insulation with less thickness but at a higher cost. Extruded Polystyrene provides solid insulation, good moisture resistance, and typically lower cost per area, making it a balanced choice for many projects.

The sheet is designed for insulation with moisture resistance, making it suitable for a range of indoor and outdoor applications. For prolonged outdoor exposure, ensure it is protected from direct weathering and installed with appropriate finishing or cladding as recommended for your project.

You can easily cut it with a sharp utility knife or a fine-toothed saw. Mark the cut lines, cut gradually, and smooth edges as needed. For installation, use adhesives designed for polystyrene or compatible mechanical fasteners, ensuring surfaces are clean and dry. Align, press (or fasten), and allow any adhesive to cure fully before finishing.

Yes, it is a stable foam material, but when cutting or shaping fine dust may be produced. Wear appropriate PPE such as gloves and safety glasses, ensure good ventilation, and keep away from open flames. Follow all local guidelines for handling foam plastics.

Typical applications include wall, roof, and floor insulation; lightweight structural or model-making projects; architectural models and prototypes; and protective packaging where rigid, moisture-resistant foam is advantageous.

Store flat on a clean, dry surface, preferably off the ground. Avoid stacking heavy items on top of it to prevent deformation. Keep it away from direct moisture and heat sources, and protect edges from impact to avoid cracks.

Thicker sheets or higher density typically increase thermal resistance and strength. For high-heat or moisture-prone environments, you may prefer greater thickness or a denser board. Use thermal guidance and local building plans to select an appropriate thickness, balancing insulation needs with cost.

Use adhesives designed for polystyrene or compatibility-tested polystyrene cements and glues. Ensure the adhesive is compatible with the sheet material and surfaces being bonded. For mechanical fixing, use fasteners appropriate for foam boards and the project structure, following the adhesive manufacturer's guidelines for any combined systems.

Yes, Fepy offers additional thicknesses and sizes within the insulation board range to suit different project requirements. Check the category for other available options and select the size that best fits your needs.