Melamine sponge sheet

Melamine sponge is a three-dimensional mesh structure. Its open porosity is as high as 99.9%, and its extremely low thermal conductivity makes it an excellent thermal insulation material; it is intrinsically flame retardant - no need to add any flame retardant, and it will form a dense carbonized layer when exposed to fire. The density is only 8-12 kg/m³, the temperature range is -160℃ ~ +240℃, zero formaldehyde, no dust - lightweight, safe and environmentally friendly. One material covers the three core requirements of sound insulation, heat preservation and flame retardancy.

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Product Description

Rail TransitVehicle interior

Covering the interior matching of all high-speed trains, subways, light rails, and trams, it complies with EN 45545 Rail Transit fire protection standards and meets Rail Transit strict fire protection, lightweight, and durable operation standards.

Car interior area: the car ceiling, wall filling, and interior partitions simultaneously achieve sound insulation, noise reduction, and fire protection. Lightweight materials reduce the weight of the vehicle.

Cab and vestibule: Customized special-shaped sound-absorbing components to specifically reduce wheel-rail friction and noise reflection from on-board equipment, optimizing the operating environment for drivers and passengers.

Vehicle HVAC system: Pipe moldings processed from hydrophobic special melamine sponge, which isolates water vapor erosion, maintains stable sound absorption and flame retardant properties for a long time, and is suitable for vehicles with year-round vibration and alternating temperature differences.

Vehicle equipment cabin: various electrical control cabinets and air conditioning unit linings to isolate high temperatures, suppress equipment noise, and have flame retardant properties to avoid the risk of circuit fires

Technical parameters

performance dimension	Core parameters	illustrate
Sound absorption and noise reduction	NRC ≥ 0.85	Broadband and efficient sound absorption, opening rate 99.9%
Thermal insulation	Thermal conductivity 0.035 W/(m·K) Airgel model≤0.015 W/(m·K)	Better than traditional rock wool/glass wool
Flame retardant safety	UL94 V-0 /B1 level	Intrinsically flame retardant, self-extinguishing when removed from fire, no droplets and low smoke
Lightweight	Density 8-12 kg/m³	5-10 times lighter than traditional materials, reducing structural load
Temperature resistance range	-160℃ ~ +240℃	Stable performance in extreme temperature environments
Environmental protection and safety	RoHS/REACH certified, zero formaldehyde	No dust, no irritation, safe and environmentally friendly