Intumescent coatings are a cornerstone of passive fire protection, designed to swell and form a thick, insulating char layer when exposed to high temperatures, thereby protecting underlying substrates. The effectiveness of these coatings largely depends on the quality of their active ingredients, and Ammonium Polyphosphate (APP II) stands out as a crucial component. NINGBO INNO PHARMCHEM CO.,LTD. specializes in providing high-quality APP II, a key intumescent coating flame retardant chemical.


APP II contributes significantly to the intumescent process by releasing phosphoric acid and ammonia upon decomposition, which then catalyzes the dehydration of carbon-based poly-alcohols within the coating. This reaction leads to the formation of a stable, expanded char, effectively shielding the substrate from heat and oxygen. This mechanism makes APP II an indispensable additive for enhancing the fire resistance of steel structures, wood, and other critical building materials.


The superior thermal stability and low water solubility of APP II, as offered by NINGBO INNO PHARMCHEM CO.,LTD., ensure that intumescent coatings maintain their integrity and protective capabilities over time, even in varying environmental conditions. This long-term stability is vital for infrastructure projects and industrial applications where durability is key. We are a reliable APP II ammonium polyphosphate supplier for intumescent coating manufacturers worldwide.


Integrating APP II into coating formulations not only enhances fire protection performance but also aligns with growing demands for halogen-free and environmentally friendly solutions. Our product offers low smoke and toxicity, crucial for occupant safety during a fire event. For those looking to buy ammonium polyphosphate flame retardant powder for their advanced intumescent coating formulations, NINGBO INNO PHARMCHEM CO.,LTD. provides consistent quality and competitive price.


With NINGBO INNO PHARMCHEM CO.,LTD.'s APP II, manufacturers can develop intumescent coatings that offer extended fire resistance times, superior adhesion, and environmental compliance, ensuring robust protection for vital assets and structures. Contact us to learn more about how our products can elevate your fire protection solutions.