TH The Straight Edge Guide
Topic

Surface Prep

Paint can change color; it cannot persuade grease, loose coating, or active moisture to become a sound substrate. Preparation guidance stops at hazardous or structural conditions and routes them to the appropriate current rules and professionals.

Surface Prep

How to Prep Interior Walls Before Painting

Prepare interior walls by first checking for moisture, loose material, and hazardous old coatings; resolve those issues before creating dust.

4 min read · 2026-07-19