Altorust Product Description AltoRust™ is a water based product that changes iron oxide to iron phosphate – an inert compound – making the surface ready to coat. Roof decks, support beams, air conditioning units, metal buildings - virtually any metal surface can be treated with AltoRust™, increasing the coating adhesion. Product Application Apply with sprayer, roller or brush at a rate of one gallon per 1000 sq.ft. Product Specifications Specification Data Sheet - AltoRust (PDF 120K) Material Safety Data Sheets MSDS AltoRust (PDF 63K)