Automotive Ventilated Dual-Density Polyurethane Seat Cushion Foam Core Assembly

This seat cushion foam assembly is constructed by flat-laminating a bottom dual-hardness molded PU main foam core with an upper layer of black high-resilience, breathable wind-guiding foam. As the core load-bearing and cushioning component for ventilated seat assemblies, it mounts directly onto the seat metal frame and is covered with leather or faux-leather upholstery.

Parameter
Features

Bottom Base Layer	Yellow dual-hardness molded polyurethane main foam core.
Upper Comfort Layer	Black high-resilience, open-cell breathable foam sheet, flat-laminated using eco-friendly water-based adhesive.
Open-Cell Porosity	92% or higher fully interconnected open-cell structure.
Air Permeability	12-18 mm/s velocity allowance with zero wind blockage across foam layers.
Precision Duct Alignment	Hollowed ventilation holes precisely aligned with lower yellow base channels, yielding under 10% airflow efficiency loss.
Flammability Rating	GB 8410 and FMVSS 302 automotive interior flame-retardant compliant.
VOC & Odor	Grade 3 or lower low-odor standard, free from pungent volatile emissions.
Temperature Range	Operating range -40 to 90 degrees C; Retains flexibility without hardening, stickiness, or crumbling under extreme sun exposure or winter cold.
Aging Resistance	Passes 500 hours humid-heat cycle testing with zero shrinkage, cracking, or chalking.

Bottom Base Layer: Yellow Dual-Hardness One-Piece Molded Foam
1. Process: Precision dual-hardness zoned molding, featuring differentiated firmness across the seating area, side bolsters, and base structure.
2. Function: Provides vehicle-grade load-bearing support and shape retention to sustain maximum body weight and prevent long-term sagging or deformation. Engineered with integrated vertical ventilation passages that serve as primary air ducts, along with side positioning lines for accurate assembly alignment.

Upper Auxiliary Layer: Black High-Resilience Breathable Open-Cell Foam
1. Process: Precision-cut full sheet with aligned airflow holes, flat-laminated onto the top surface of the main foam using eco-friendly water-based adhesive.
2. Function: Evenly diffuses air stream from ventilation blowers, softens top-layer seating touch, eliminates friction noise between surface leather and hard foam, and clears sweat and moisture. This ensures uniform airflow distribution across the entire contact surface, preventing direct localized cold air blasts while avoiding stuffy heat in other areas.