NOVELTY - Forming a stable thin transparent conductive thin coating involves purifying carbon nanotubes so that they contain no detectable metals; forming a layer of carbon nanotubes, and adding at least one binder in a second coating step. The binder further comprises a solvent. The ratio of the carbon nanotubes to the binder is greater than 10 (preferably greater than 90) wt.%.    USE - For forming stable transparent conductive nanotube coating (claimed) useful in e.g. photovoltaic devices, organic light emitting diodes, liquid crystal displays or touch screens.    ADVANTAGE - The method provides coating that imparts stable electronic properties and optical properties to the coating when the coating is exposed to environmental conditions including temperatures of 20-200degreesC for 1 hour to 5 years, humid condition of 10-100% and ultraviolet (UV) radiation of 280-460 nm, UVA radiation or UVB radiation. The environmental conditions are extreme temperatures, humidity, or UV radiation. The stable optical property is selected from diffuse transparency, specular transparency, haze, diffuse reflectance, specular reflectance, and absorbance. The electronic properties comprise surface resistance that changes less than 100 (preferably less than 1)%, upon exposure to the environmental conditions. The method increases transparency of carbon nanotube coating by 1-10 %. The carbon nanotubes form a homogenous layer with a thickness of less than 50 (preferably less than 10) ran. The composition has a carbon purity of more than 90 (preferably more than 99)%. The composition contains less than 5 (preferably less than 0.1)% metal. The composition has stable electronic properties upon exposure to environmental conditions. The electronic properties change less than 50 (preferably less than 1)%.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) increasing the transparency of a carbon nanotube coating by 1-10% by adding at least one binders to the carbon nanotube coating; and    (2) a transparent and conductive composition comprised of carbon nanotubes, where the composition contains no detectable metal.