Seat Cushions
Polyurethane (PU) foam is one of the most widely used materials in seat cushions, thanks to its balance of comfort, support, durability, and affordability. It’s used across various seating types—from office chairs and sofas to automotive, dining, and wheelchair cushions.
Description
Recommended Foam Densities for Seat Cushions
| Foam Density (lbs/ft³) | Firmness | Ideal Use Case |
| 1.5 – 1.8 | Soft-medium | Light-use chairs, decorative seating |
| 1.8 – 2.5 | Medium-firm | Sofas, dining chairs, office seating |
| 2.5 – 3.0+ | Firm | Heavy-duty, medical, commercial use |
Types of PU Foam Used in Seat Cushions
| Type | Features | Applications |
| Conventional PU Foam | Affordable, soft-medium support | Low-cost or short-use cushions |
| High-Resilience (HR) Foam | Long-lasting, firm, bouncy | Office chairs, sofas, automotive seating |
| Memory Foam (Viscoelastic) | Pressure-relieving, contours to body | Medical, orthopedic, luxury cushions |
| Reticulated/Quick-Dry Foam | Open-cell, fast-drying, breathable | Outdoor seat cushions |
Home Furniture (Sofas, Chairs): Medium to high-density PU foam adds comfort and structure, often layered with softer foam or fiberfill to create a plush feel.
Office Chairs: High-resilience foam provides ergonomic comfort for prolonged sitting, maintaining shape and offering firm support for proper spine alignment.
Automotive Seating: Molded PU foam offers comfort and safety in car seats, engineered to absorb impact and reduce vibration.
Wheelchair & Medical Cushions: Pressure-relief foams, including memory foam variants, help prevent pressure sores and can be customized for therapeutic or orthopedic support.
Outdoor and Patio Seating: Quick-dry or reticulated PU foam is used for weather resistance, maintaining comfort while withstanding moisture and sun exposure.
Comfort & Support: Adapts to body shape and maintains firmness over time.
Customizable Densities: Available in soft, medium, or firm to meet different seating needs.
Durability: Especially with high-resilience foam, resists sagging and compression.
Lightweight & Versatile: Easy to cut, shape, and install in a wide range of seat designs.
Cost-Effective: More affordable than latex or spring-based systems, while still offering high performance.
- CertiPUR-US® certification for indoor cushions (low emissions, no harmful chemicals)
- BS 5852 or CA TB117 fire safety compliance (especially for commercial or medical use)
- Anti-microbial or water-resistant treatments for outdoor/medical cushions
Related Products and Applications
Seat Covers Foam
Seat Covers FoamPolyurethane (PU) foam is an essential component in automotive seat cover systems, primarily used as cushioning material beneath upholstery fabrics. It provides comfort, support, and durability, enhancing the overall seating experience for vehicle occupants.
Baby Products
Baby ProductsPolyurethane (PU) foam is used in many baby care products for its softness, flexibility, cushioning, and lightweight properties. However, due to the sensitive nature of infant products, strict safety standards and certifications are crucial.
Upholstered Furniture
Upholstered Furniture
Upholstered Furniture
Upholstered FurniturePolyurethane foam is a widely used material in the upholstery and furniture industry due to its versatility, comfort, durability, and cost-effectiveness. Here’s a comprehensive breakdown of its application and usage:
There are two main types:
Flexible polyurethane foam (FPF) – Soft and used in cushions, mattresses, etc.
Rigid polyurethane foam – Used for insulation and structural applications, not typically for furniture.
Air Filter Seals
Air Filter SealsFlexible foam is commonly used in air filter seals due to its excellent sealing properties, compressibility, and chemical resistance. Here’s a breakdown of how and why flexible foam is used in this context:
