Caulking failures: Loss of the protective moisture seal due to the loss of initial adhesion and flexibility.
Caulking failure causes: Filling too large an opening. Wrong type of caulk for particular applications and exposure. Aged non-acrylic caulks that dry out lose their adhesion and flexibility. Considerable movement or prolonged contact with water will need special caulks/sealants.
Caulking solutions: Select a caulk that best serves your situation. Apply according to directions. For most interior painting, 100% acrylic caulks are recommended. They will seal cracks and adhere to most surfaces, even when moisture is present. Don’t paint over silicone caulks.
Primers & interior finishes: Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.