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Paint Crack Repair Guide

If you have ever painted over caulking, you might have come back after a few days or weeks and noticed some unsightly cracks in the areas where you painted over caulk.  There are many reasons why this might happen, and there are definitely ways to prevent this, one easy fix is to use TOWER products.  Also, luckily there is an easy fix. TOWER Sealants' fast-drying Accelerator caulk is an excellent solution for repairing cracked paint over caulking. Accelerator is compatible with most paints, even adding some forgiveness for harder and less flexible paints, and provides a quick and efficient way to restore the appearance and functionality of caulked areas. This guide will walk you through the step-by-step process of using the fast dry caulk to repair cracked paint on caulking, ensuring a seamless and durable finish.

Image of a old application of caulk that is cracking

Materials and Tools Needed:

  • TOWER Sealants’ Accelerator
  • Putty knife or scraper
  • Fine-grit sandpaper
  • Damp cloth or sponge
  • Painter's tape (optional)
  • Paint (matching the existing color, if necessary)
  • Sprayer, paintbrush, or roller
  • Caulking gun

Step 1: Preparing the Surface

1.1. Start by cleaning the area around the cracked paint on the caulked surface. Use a damp cloth or sponge to remove any dirt, dust, or loose particles. Ensure the surface is completely dry before proceeding.

1.2. If necessary, use a putty knife or scraper to gently remove the cracked or loose paint from the caulked area. Be careful not to damage the underlying caulk or substrate. Smooth the area with fine-grit sandpaper to create a clean and even surface.

1.3. If desired, apply painter's tape to protect adjacent surfaces, such as walls or baseboards, from accidental paint splatter.

Step 2: Applying TOWER Sealants’ Accelerator Fast Dry Caulk

2.1. Load the TOWER Accelerator into a caulking gun. Cut the tip of the caulk tube at a 45-degree angle to create an appropriate-sized opening.

2.2. Starting from one end of the cracked paint, slowly and evenly apply the fast dry caulk into the cracked area. Use steady pressure on the caulking gun trigger to achieve a consistent bead of caulk, and make sure you are extruding enough caulk to fill in the cracks.

Image of someone using their finger coming behind a application of caulk to smooth it out and take excess caulk off

2.3. Continue applying the caulk lightly along the entire length of the cracked paint, ensuring it fills the gaps completely. Smooth the caulk with a damp finger or a caulk-smoothing tool to create a neat finish. Remove any excess caulk immediately using a damp cloth.

Step 3: Drying Time and Finishing

3.1. TOWER Accelerator allows for instant spray painting after application but requires 30 minutes of dry time before rolling or brush painting. Avoid touching or disturbing the caulk during the drying process.

3.2. Once the caulk is dry, inspect the paint crack and repair the area for any imperfections. If necessary, lightly sand any rough edges or excess caulk, and wipe away the dust with a damp cloth.

Image of someone cleaning up excess paint that was previous cracked

3.3. If the repaired area requires repainting, ensure the caulk is dry before proceeding. Apply a matching paint color using a sprayer, paintbrush or roller, following the manufacturer's instructions. Allow the paint to dry completely before removing any painter's tape, if used.


Using TOWER Sealants’ fast drying Accelerator to repair cracked paint on caulking is a straightforward process that can be accomplished with a few simple steps. By following this guide and the paint manufacturer’s instructions, you can learn how to fix cracked paint to achieve a professional-looking finish, restoring the appearance and functionality of the caulked area.

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2095 Memorial Park Rd.Gainesville, Georgia 30504
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