26.12.2023 ... I would scrape away the bubbled paint, sand with 220, clean the dust away with a vac & dry brush or cloth, prime with kilz premium on a roller....
Bubbling paint in your bathroom can be an unsightly and frustrating problem, but it's not uncommon due to the high moisture levels and temperature fluctuations in this part of the home. The good news is, you can fix it with the right approach. This guide will walk you through the process, from identifying the cause to applying the final coat of paint.
Before you start fixing the problem, it's essential to understand why your bathroom paint is bubbling. Some common causes include:
Before you begin, make sure you have the following tools and materials on hand:

Start by removing any furniture or fixtures that might get in the way. Lay down plastic drop cloths to protect your floor from paint and debris.
Using a scraper or putty knife, carefully lift the edges of the bubbles and peel them off. Be gentle to avoid damaging the surrounding paint or wall surface.
Once all the bubbles are removed, clean the affected area with a mild detergent and water. Rinse thoroughly and allow it to dry completely.

Lightly sand the area with a sanding sponge or sandpaper to create a smooth, even surface for the new paint to adhere to. Wipe away any dust with a tack cloth.
Apply a coat of primer to the affected area. Priming seals the surface and provides a better base for the new paint. Allow it to dry according to the manufacturer's instructions.
Using a paintbrush or roller, apply a coat of 100% acrylic latex paint to the affected area. This type of paint is specifically designed to withstand the high moisture levels in bathrooms. Allow it to dry according to the manufacturer's instructions, then apply a second coat if necessary.
To prevent your bathroom paint from bubbling in the future, consider the following tips:
By following these steps and taking preventative measures, you can successfully fix bubbling paint in your bathroom and maintain a beautiful, durable finish for years to come.
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