This　article　presents　the　blade　coating　analysis　of　viscous　nanofluid　passing　over　a　porous　substrate　using　a　flexible　blade　coater.　Water-based　copper　nanoparticles　are　considered　to　discuss　the　blade　coating　process.　The　lubrication　approximation　theory　is　applied　to　develop　the　flow　equations.　The　analytical　solution　is　obtained　for　velocity,　volumetric　flow　rate,　and　pressure　gradient,　while　shooting　method　is　applied　to　obtain　the　pressure,　thickness,　and　load.　Different　models　for　dynamic　viscosity　have　been　applied　to　observe　the　impact　of　related　parameters　on　pressure,　pressure　gradient,　and　velocity.　These　results　are　presented　graphically.　Interesting　engineering　quantities　such　as　load,　deflection,　and　thickness　are　computed　numerically　and　are　shown　in　the　tabulated　form.　It　is　found　that　nanoparticle　volume　fraction　increases　the　pressure　gradient,　pressure　and　has　minor　effects　on　velocity.　For　model　1,　an　increase　in　the　volume　fraction　reduces　the　coating　thickness,　load,　and　deflection,　while　model　2　has　opposite　effects　on　the　mentioned　quantities.　Also,　model　2　has　a　greater　impact　on　pressure　and　pressure　gradient　when　compared　to　model　1.