Common Mistakes to Avoid When Using Crack Fillers
Cracks in concrete walls, floors, and structures are not just unsightly—they can lead to serious structural damage and costly repairs if ignored. Using the right crack filler is one of the most effective ways to restore surface integrity and prevent moisture ingress. However, even the best products from trusted brands like Dr. Fixit, Sika, Fosroc, Sunanda, Zydex, or Rdymix can fail if applied incorrectly. At ADT Industries Pvt. Ltd., Navi Mumbai, we often see recurring issues caused by simple mistakes during the crack filling process. Let’s look at some common errors and how to avoid them.
1. Ignoring Proper Surface Preparation
One of the most frequent mistakes when using a crack filler is neglecting proper surface cleaning. Dust, loose particles, oil, or moisture can prevent the filler from bonding properly. Before application, make sure the crack is thoroughly cleaned and dry. At ADT Industries Pvt. Ltd., we recommend using an air blower or wire brush for best results. Clean surfaces ensure long-lasting adhesion and prevent the filler from peeling off prematurely.
2. Choosing the Wrong Type of Crack Filler
Not all cracks are the same—some are structural, while others are cosmetic. Selecting the wrong type of crack filler or sealant can lead to failure. For example, flexible sealants from brands like Sika or Fosroc are ideal for expansion joints, while rigid fillers are better suited for static cracks. Always consult with an expert from ADT Industries Pvt. Ltd. to choose the correct product based on the substrate and crack movement.
3. Skipping Primer or Bonding Agent
Applying a crack filler directly on bare concrete without a bonding agent reduces adhesion. A compatible primer helps the filler adhere better and improves its performance. Whether you’re working with micro concrete, tile adhesive, or waterproofing chemicals, always check the manufacturer’s recommendations—brands like Sunanda, Zydex, and Dr. Fixit offer specialized primers for different applications.
4. Overfilling or Underfilling the Crack
Applying too much or too little crack filler can compromise the repair. Overfilled cracks may develop surface bubbles or shrinkage, while underfilled ones fail to seal completely. The correct approach is to fill the crack slightly above the surface and smooth it out with a spatula or trowel. This ensures even coverage and a clean finish.
5. Neglecting Curing Time
Many contractors rush the job by painting, tiling, or waterproofing too soon after filling cracks. Each crack filler, micro concrete, or tile adhesive has a specific curing period that must be respected. Allowing adequate curing ensures the product reaches its full strength and elasticity. At ADT Industries Pvt. Ltd., we always emphasize patience—proper curing leads to long-lasting, waterproof repairs.
6. Ignoring Compatibility with Other Materials
When using multiple products like crack fillers, sealants, tile adhesives, and waterproofing chemicals, compatibility is crucial. Mixing materials from different brands without checking chemical compatibility can cause peeling or cracking later. Trusted names such as Dr. Fixit, Sika, Fosroc, Sunanda, Zydex, and Rdymix offer complete, compatible systems for concrete repair and waterproofing.
Final Thoughts
Using a crack filler may seem straightforward, but small mistakes can make a big difference in the durability of your repair. Always choose quality materials, follow manufacturer instructions, and seek expert advice when needed. At ADT Industries Pvt. Ltd., Navi Mumbai, we specialize in providing professional-grade crack fillers, sealants, micro concrete, tile adhesive, and waterproofing chemicals from leading brands to ensure long-lasting, reliable results for every project.
Call:+919619304100 | Email:helpdesk@adtchemical.com | Website: www.adtchemical.com
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