How to Solve Common Problems Many interior painting problems can be traced back to a handful of common problems. And when your time, supplies, and budget are in play, you want to get the job done right the first time. So to help things run smoothly, here’s the lowdown on common problems and how to solve them.Poor Paint AdhesionWhen a paint cracks or peels from an interior surface, it’s usually because of one of these causes:Excessive glossiness of the underlying surface.A dirty surface or a surface contaminated with sanding dust.Solution:Remove all paint that is not adhering.Lightly sand the surface to dull the glossiness.Clean the surface of any contaminants.Prime the surface with a quality primer.Tip: Use Valspar Stain-Blocking Bonding Primer or Topcoat with Valspar Signature 100% Acrylic Paint and Primer.Re-paint the surface.WATER STAININGWater in the substrate behind the paint film is bad news for otherwise good work. Certain materials, such as ceiling tiles, contain water-soluble extractives that leach through the paint, creating dark brown water spots.Solution:Identify the source of the moisture – such as a roof leak – and repair it.Apply a stain-blocking primer to keep the water spot from continuing to bleed through. Note: These primers are available in solvent- and water-based formulations.Paint the surface with an acrylic latex paint.Tip: Save time on steps 2 and 3 with a paint + primer, such as Valspar Stain-Blocking Bonding Primer or Valspar Signature 100% Acrylic Paint + Primer.PICTURE FRAMING / HAT BANDINGPicture framing or hat banding is a term for visible lines around the corners and sides of walls. It happens when too much time lapses between cutting borders and rolling the rest of the wall.Solution:Keep a wet edge while painting: Cut in or trim a section of one wall and then roll it while the paint is still wet.Use the same technique on the remaining walls.If picture framing has already occurred, the only way to fix it is by repainting the wall.Tip: If you’re repainting, use Valspar Signature 100% Acrylic Paint + Primer or Valspar Ultra 100% Acrylic Paint + Primer to get it done right.MILDEWMildew is a mold growth that thrives in warm, moist areas, such as a bathroom. It is usually green or gray in color, and can look like dirt. The challenge is that mildew cannot be removed or killed with just soap and water. And even mildew-resistant coatings won’t get rid of it, they’re designed to stop it from appearing on the surface of the coating. Mildew must be killed before you paint, or it will continue to grow.Solution:Scrub the surface with a commercial mildew remover, or a solution of one part liquid chlorine bleach to three parts water.Rinse thoroughly and avoid contact with skin or eyes.Choose a coating with a mildew-resistant finish.Tip: Use Valspar Signature 100% Acrylic Paint + Primer or Valspar Ultra 100% Acrylic Paint + Primer – they both protect against mildew growth on the dried coating.MUD CRACKINGMud cracking appears as tiny hairline cracks in the painted surface, similar to the look of cracked mud in a dry river bed. The problem can occur when applying paint too heavily, or painting when the air or surface temperature is too cold.The solution depends on the severity of the cracking:If it is only a surface appearance problem, coat the area with a primer.If the surface has a texture or is beginning to peel, scrape the surface with a putty knife or sand the cracked area to get an even surface.Either way, be sure to apply a coat of primer before painting.Tip: If you’re looking for a simple primer, go for Valspar Drywall Primer or Valspar High Hiding Primer.Tip: If you want paint and primer in the same coat, use Valspar Signature 100% Acrylic Paint + Primer or Valspar Ultra 100% Acrylic Paint + Primer.POOR PAINT HIDEPoor hide can happen because of low paint quality, cheap applicators, or overspreading paint. The downsides are self-explanatory, and since a client settling on the perfect color can take long enough, you shouldn’t take any chances with the end result.Solution:Use premium quality paint with high quantities of hiding pigments.Use quality brushes and rollers.Follow label instructions on coverage and adjust for surface porosity – a porous surface will absorb paint at an uneven rate.If changing color dramatically, the job will benefit from a specialty, high-hiding primer.Tip: Valspar High Hiding Primer is great for dramatic changes.Seal bare wood and drywall with primer before painting.Tip: Save time with a paint + primer combo, such as Valspar Signature 100% Acrylic Paint + Primer or Valspar Ultra 100% Acrylic Paint + Primer.POOR SHEEN UNIFORMITYSurfaces with inconsistent porosity like wood or drywall can throw a wrench into the works, especially when it comes to sheen uniformity. Surfaces like this make primer all the more important, because they seal the surface and create uniform porosity.Solution:Apply a primer recommended for the substrate being painted.Tip: Save time with a paint + primer combo, such as Valspar High Hiding Primer, Valspar Signature 100% Acrylic Paint + Primer, or Valspar Ultra 100% Acrylic Paint + Primer.High-quality paint is recommended to achieve the best look after primer has been applied.