It is involatile white powder, density is 2-3，non-toxic matter，which is not irritative to skin and contains now harmful heavy metals.

    Aluminium dihydrogen tripolyphosphate has double-antirust capacity and can form excellent passive film on the surface of metal.

    APW has low Sg, small fineness and excellent antirust capacity. It can offer good effects in low dosage, thus it has low application coat. it is white matter, which are good to make colorful pigment.

Uses:
    It can be used as substitute of traditional toxic antirust pigments and can be used in primer and primer/top-coat paint, It is good compatible with varnish, pigment and filler. Moreover, it can work with antirust pigment to produce anticorrosive coating, it also can be used in solvent coating (phenolic resin, alkyd resin, epoxy resin, acrylic resin) and water soluble resin coating (water-based epoxy ester immerse paint, rust coating, pitch paint, primer with zinc, fire-refractory coating and heat resistant paint), etc.