Prepping

How to Prep Interiors

Difficult Surfaces

Here's the right way to prep challenging surfaces.

Tools

Here's everything you'll need to get it right the first time.

2" brush Hand vacuum with brush attachment
Sand sponge Sand paper
Alcohol or Alkyd-based primer Painter's tape
Goggles, protective gloves, respirator  

Prepping Molding

With contoured or intricate trim or molding, use a sanding sponge rather than sand paper. The sponge gets places the paper can't reach.

Trick of the Trade

Valspar Paint Interior Prepping DIY

Use a hand vacuum with a brush attachment to clean dust and debris off woodwork and doorframes.

Repairing Woodwork

With eggshell and semi-gloss finishes, every imperfection shows through. So proper prep is critical when painting woodwork. Fill in dents and rebuild chipped corners with wood filler. (Most woodwork is typically painted semi- or gloss.)

Valspar Paint Interior Prepping DIY

Use spackle on scratches and smaller cracks. Keep sanding and filling till you get it right—the end results are worth it. Finally sand the dry surface with 180 grit paper and wipe off all the dust.

Priming Bare Woodwork

Valspar Paint Priming DIY

Use a latex or oil-based primer formulated for stain blocking and sealing the surface.

Priming Glossy Painted Surfaces

Valspar Paint Interior Priming DIY

There are three ways to prime a glossy surface:
1. Use a latex or oil-based primer formulated for glossy surface adhesion.
2. Use a liquid deglosser such as Prepaint, following all label instructions.
3. Go over the surface with 200 grit sandpaper. The scuffing will help the new paint adhere. Then wash the surface with TSP, rinse with water, and let dry.

Valspar Paint Prepping DIY

More information about proper surface painting, prepping, and clean up.