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Thermal Elastomeric Black Soundproof Rubber Foam Insulation Board for HVAC System. Superior Fire Safety: Rated ASTM E84 Class A with self-extinguishing properties, low flame spread, and smoke emission. Flexible Customization: Customizable thickness (10-30mm), density, surface types, and length to match project needs. Diverse Surface Options: Available in plain, self-adhesive, and aluminum foil faced surfaces for various applications. Eco-Friendly Material: Formaldehyde-free, low VOC, RoHS compliant, and non-toxic for green building projects. Comprehensive OEM/ODM: Full customization support for size, shape, color, and packaging with professional technical consultation.