Density is about longevity
Density describes how much material is in the foam. Higher density often supports a longer useful life, but it does not automatically mean the cushion will feel firm.
Materials & care
A practical, plain-language guide to fabric, vinyl, foam, performance ratings, cleaning, and island conditions.
Upholstery material comparison
The best-looking material is not always the best-performing one. We consider how the piece will be used, what it will be exposed to, how it will be cleaned, and whether the project requires performance documentation.
Inside the cushion
Foam should be selected for the application—not only by squeezing a sample. Seating style, thickness, use, exposure, and drainage all influence the right choice.
Density describes how much material is in the foam. Higher density often supports a longer useful life, but it does not automatically mean the cushion will feel firm.
Firmness determines whether a cushion feels soft, medium, or supportive. Two foams can feel similar while having very different densities and expected lifespans.
Open-cell foam allows air and water to move through it more easily. Closed-cell foam resists water absorption and can add flotation, but it feels and behaves differently.
Marine and outdoor cushions need the right combination of foam, cover, drainage, ventilation, and installation. A performance fabric alone cannot prevent trapped moisture.
Compressed, crumbling, or waterlogged foam can affect comfort, shape, drying, and the life of a new cover. Replacing worn foam can be as important as replacing the fabric.
Performance terms, made simple
Ratings help compare materials, but no single number guarantees performance. The complete application—and the manufacturer’s instructions—still matter.
A laboratory estimate of how much repeated rubbing a fabric can withstand before visible wear. A larger number can be useful for busy seating, but construction, cleaning, and actual use still matter.
How well a material tolerates damage from ultraviolet sunlight. UV-resistant does not mean fade-proof, especially under intense tropical sun.
How well a color holds when exposed to light over time. It helps compare fabrics for bright rooms, windows, lanais, and outdoor areas.
A finish or material property that helps spills release more easily. It does not make fabric stain-proof, and incompatible cleaners can damage the finish.
A manufacturer’s shorthand for safe cleaning: W usually means water-based, S means solvent-based, W/S allows either, and X means vacuuming or professional care only. Always confirm the specific product instructions.
Downloadable care guides
Each short guide covers routine cleaning, cleaner types, products to avoid, drying and ventilation, mold or mildew precautions, sun and moisture exposure, when to call Chung Nam, and manufacturer-care limitations.
Everyday care for sofas, chairs, cushions, and interior fabrics.
Download PDF ↓Cleaning, drainage, sun exposure, and tropical moisture precautions.
Download PDF ↓Salt, mildew, ventilation, vinyl care, and waterlogged-foam warning signs.
Download PDF ↓Care for vehicle fabric, vinyl, headliners, carpet, and high-wear seating.
Download PDF ↓Staff-friendly guidance for approved chemistry, documentation, and room turnover.
Download PDF ↓Routine cleaning, safe drying, storm inspection, and material protection.
Download PDF ↓Each completed customer project can receive the appropriate care guide by email or as a printed card. This helps customers protect their investment and keeps the material’s approved cleaning guidance close at hand.
Not sure which material or foam fits your project?