Absorbing Foam
Absorbing foam is a functional electromagnetic wave-absorbing material made from polyurethane (PU) foam base, impregnated or coated with absorbing materials such as carbon powder, ferrite, or carbonyl iron powder. It offers excellent absorption performance, lightweight construction, flexibility, and ease of processing. Effectively absorbs specific frequency bands of electromagnetic waves to reduce reflection and interference. Suitable for microwave anechoic chambers, EMC testing, radar stealth applications, and electronic equipment shielding across multiple industries.
Material
Polyurethane foam + carbon black/ferrite/carbonyl iron powder microwave-absorbing material + flame retardant
Tolerance
Density tolerance: ±0.01g/cm³, Thickness tolerance: ±2mm, Absorption band: 1-40 GHz (customizable)
Surface Treatment
Impregnation, coating, adhesive backing, slitting and die-cutting, punching
Application Areas
Anechoic chamber, electromagnetic compatibility (EMC) test chamber, radar stealth materials, electronic equipment shielding, communication equipment, aerospace, military equipment.
Product Features
- Excellent absorption performance with customizable frequency bands (1-4 GHz)
- Lightweight, flexible, and easy to mold
- Excellent flame resistance, compliant with UL94 V-0 standard
- High weather resistance; withstands extreme temperatures and aging
- Adhesive-backed, easy to install
- Available in pyramid, wedge, and flat shapes