Nano Aluminum Hydroxide CAS 21645-51-2 (Nano ATH) is halogen-free inorganic flame retardant. It features fine particle size, good dispersion, excellent flame retardancy and smoke suppression. It can improve material thermal stability, widely used as eco-friendly flame retardant filler for wire and cable materials.

Product Detail

Nano Aluminum Hydroxide CAS 21645-51-2 Halogen Free Flame Retardant for Wire and Cable Materials

Product Overview

Nano Aluminum Hydroxide (Nano ATH, CAS 21645-51-2) is high-purity halogen-free inorganic flame retardant prepared by special nanocrystallization and surface modification technology. It releases crystal water during thermal decomposition to absorb heat, dilute combustible gas and suppress smoke generation. With small primary particle size and good compatibility with polymers, it effectively reduces the negative impact on mechanical properties of substrates. It is an environmentally friendly flame retardant widely adopted for wire and cable insulating and sheath materials.

Core Features

Halogen-free & Low Smoke: No halogen elements, low smoke density during combustion, conforms to low-smoke zero-halogen standards for cables.
Dual Function of Flame Retardancy and Smoke Suppression: Endothermic decomposition forms protective oxide barrier to block flame spreading.
Nanoscale Particle Size: Excellent dispersion, less dosage required compared with ordinary ATH, maintains good material flexibility.
Low Toxicity & Eco-friendly: Non-corrosive, no toxic gas released when burning, meets environmental protection regulations.
Good Weather Resistance: Improve thermal aging resistance and electrical insulation performance of cable materials.
Surface Optional Modification: Modified grades realize better compatibility with EVA, PE, TPE and other cable resins.

Product Specifications

Product Name: Nano Aluminum Hydroxide (Nano ATH)

CAS No: 21645-51-2

Appearance: White fine powder

Raw Material: High purity aluminum hydroxide, nano refinement & optional surface treatment

Core Function: Halogen-free flame retardant, smoke suppressant, insulating filler

Applicable Materials: Low smoke zero halogen wire & cable insulation, sheath compounds

Application Scope

Nano Aluminum Hydroxide is mainly used in low smoke halogen free wire and cable materials, including EVA cable compounds, PE insulation materials, TPE elastomer cables, control cables, power cables, charging pile cables and communication cables. It can also be compounded with other phosphorus-based flame retardants to optimize flame retardant performance and processing fluidity.

Usage Guide

Add Nano ATH during twin-screw extrusion compounding stage. Use appropriate dispersant to avoid agglomeration. Adjust loading level according to target flame retardant grade (UL94, IEC cable standards). Surface-modified type is recommended for high filling formulations. Conduct pilot compounding test before mass production. Keep sealed storage to prevent moisture absorption.

Packaging & Storage

Packaging: 25kg plastic-lined woven bag, customized packaging available

Storage: Store in cool, dry and ventilated warehouse; tightly sealed to avoid moisture absorption

Shelf Life: 12 months under original sealed storage

Our Advantages

Our Nano Aluminum Hydroxide features stable particle size distribution and controllable surface modification. Low impurity content, consistent flame retardant effect between batches. Multiple particle size specifications available for different cable formula requirements. Factory direct supply ensures stable inventory and fast delivery. Free sample testing and compound formulation technical support are available for cable material manufacturers.

Next : CAS 21645-51-2 Ultra Fine ATH Powder Smoke Suppressant for Epoxy Resin Flame Retardant

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