When your doorway is soiled, utilize a scrub sponge saturated with TSP (trisodium phosphate) to wash it. The TSP will dissolve the grease and grime. The roughness from your scrub sponge also functions like damp sanding and may provide the new paint a thing to adhere to. From Business enterprise: http://interiorpainting74159.loginblogin.com/687193/a-review-of-colorado-painting