Appearance White to slightly off-white fibrous or granular powder. Methoxy, % 28.0~30.0 Hydroxypropoxy, % 7.0~12.0 Apparent Viscosity, mPa.s According to customer’s requirements Residue on ignition, % ≤1.5 Loss on drying,% ≤5.0 PH 5.0~8.0 Heavy Metal, ppm ≤20