Cracks Left Untreated Will Shorten the Lifespan of Your Walls! Here's How to Fix It

Created on 12.02

Cracks in buildings not only affect aesthetics but also compromise structural integrity and the durability of the coating. This article outlines how to treat different types of cracks to ensure long-lasting coating results.

Hand painting wall blue, text: "Service Life of Structure and Coating," product packs below.

I. Base Layer Crack Repair Solutions

Cracks are categorized into fine cracks (less than 0.5mm) and significant cracks (greater than 0.5mm).

1. Fine Cracks (Less than 0.5mm)

Clean the cracks

: Use a wire brush to remove dust; improper cleaning affects repair adhesion.

Fill the cracks

: Apply elastic anti-crack leveling putty to fill and smooth the cracks, ensuring no air gaps.

2. Significant Cracks (Greater than 0.5mm)

Non-structural cracks

: Cut a U-shaped groove, clean the cracks, and repair with anti-crack putty.

Structural cracks

: Inject low-viscosity epoxy resin, and apply reinforcement mesh to ensure structural stability.

II. Corner Treatment

1. Exterior Corner Treatment

Base coating

: Use a level to protect the corner during application.

Spray coating

: Wait for each side to dry before spraying the other, preventing cross-contamination.

2. Interior Corner Treatment

Base coating

: Use a chalk line for precise application.

Spray coating

: Same as exterior, ensure the surface is dry before applying the next coat.

III. Window and Door Corner Treatment

For window and door corners, ensure repair materials are fully cured before coating. Use reinforcement mesh with fast-drying materials to prevent future cracks.