Weathering-Resistant Flame-Retardant Powder Solution for High-Rise Exterior Wall Insulation

2026-09-14 16:13:20

High-rise exterior wall insulation boards and integrated decoration-insulation boards are core materials for building energy efficiency and fire safety. Exposed outdoors over the long term, they must withstand intense UV radiation, high-temperature sun exposure, low-temperature freeze-thaw cycles, rain erosion, and wind-pressure impact. The materials are required to be lightweight with thermal insulation, flame-retardant and fire-resistant, weather-resistant and anti-aging, freeze-thaw resistant, and non-delaminating.

Conventional flame-retardant powders suffer from poor weather resistance and weak freeze-thaw capability. Under prolonged exterior-wall service they easily chalk, crack, detach, and lose flame-retardant efficacy—creating safety hazards such as insulation-layer detachment and fire spread.

Weifang Wanfeng New Materials' weathering-resistant flame-retardant powders, specially formulated for exterior wall insulation, are built for the demanding, long-duration conditions of high-rise exterior walls, combining the multiple advantages of insulation, flame retardation, weather resistance, and freeze-thaw resistance.

Lightweight aluminum hydroxide powder has low specific gravity and minimal added weight, imposing no extra load on exterior wall boards while preserving their excellent thermal insulation. It uniformly imparts flame-retardant capability, blocking vertical fire spread along exterior walls.

Weather-resistant magnesium hydroxide powder offers strong thermal stability and UV-aging resistance. Under long-term sun exposure it does not decompose or lose efficacy, delivering sustained and stable flame retardation and fire protection, and eliminating the risk of exterior insulation ignition and spread.

Hexagonal-platelet powder enhances board structural toughness and freeze-thaw resistance, withstanding seasonal freeze-thaw cycles without easily cracking, detaching, or chalking—ensuring the integrity and stability of the exterior insulation layer.

Magnesium-aluminum hydrotalcite synergistically resists UV, suppresses smoke, and retards flame, extending board weather-resistant service life and raising the fire-safety rating—meeting the long-term safe operation and maintenance needs of high-rise exterior walls.

The entire powder series is halogen-free and eco-friendly, complies with building fire-acceptance standards, and is suitable for the scaled production of various exterior wall insulation and flame-retardant boards.