What is Star Crack Shield?

Star Crack Shield clad is a two-component PU putty with a high adhesion and flexibility factor. It is a drug designed to fill cracks in concrete, masonry, and plaster surfaces. It has fast setting and cures to form a seamless, watertight seal.

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Introducing Star Crack Shield, the ultimate solution for repairing cracks on various surfaces. This 2k   is specially formulated to provide exceptional adhesion and prevent further crack propagation, ensuring a long-lasting repair.

With Star Crack Shield, you can bid farewell to unsightly cracks that mar the beauty of your walls, floors, or any other surface. Its shrink-free formulation guarantees that the cracks will be gone for good, giving you peace of mind and a seamless finish.

Applying Star Crack Shield is a breeze, making it perfect for both DIY enthusiasts and professionals. Simply use a putty knife or trowel to apply the putty, filling the crack completely. No need to worry about complicated techniques or tools.

Time is of the essence, and that's why Star Crack Shield is designed to dry quickly. Within just 2-3 hours, you can have a fully repaired surface, saving you time and minimizing project downtime.

One of the standout features of Star Crack Shield is its paintability. Once the putty is dry, you can easily paint over it to match the surrounding surface. No more unsightly patches or mismatched colors. Achieve a flawless finish that seamlessly blends with your walls or floors.

Whether you have cracks on your interior or exterior surfaces, Star Crack Shield is the go-to product for all your crack repair needs. Its 2k formulation ensures a strong and durable repair that will withstand the test of time.

Introducing Star Crack Shield: The Ultimate Solution for Cracks 

  • Superior crack filling

    Star Crack Shield effectively fills cracks of varying widths and depths, preventing further damage and water infiltration.

  • Excellent adhesion

    The putty adheres strongly to a wide range of surfaces, ensuring long-lasting crack repair.

  • Flexibility

    Star Crack Shield is designed to accommodate thermal expansion and contraction, minimizing the risk of crack reoccurrence.

  • Waterproofing properties

    The cured putty creates a waterproof barrier, protecting the underlying structure from water damage.

  • Easy application

    Star Crack Shield can be easily applied using a putty knife or trowel, making it a convenient solution for both DIY enthusiasts and professionals.

  • Superior Crack-Filling Capabilities

     Star Crack Shield is specifically formulated to effectively fill cracks in various substrates, including concrete, masonry, and more. Its unique composition allows it to penetrate deep into the cracks, providing a strong and durable repair.

  • Excellent Adhesion

    It has good adhesion properties; hence, perfectly bonding to the substrate will prevent further propagation of the crack and guarantee a protective long-lasting repair.

  • Flexibility

    Star Crack Shield is an elastomeric compound that flexes and moves with substrate natural movement and expansion. In general, this feature avoids the further opening of cracks or creep that may re-open existing ones and thus offers assurance in durability for the repair.

  • Quick Curing Time

    The product dries fast and hence allows the user to fast complete the repair of cracks. This saves time and minimizes disruption to the area being repaired.

  • Paintable Surface

    Star Crack Shield provides a smooth, paintable surface when cured. This allows it to integrate with the surrounding area without visible fault lines, thereby ensuring a nice aesthetic finish.

  • Versatility

    Star Crack Shield is suitable for use on walls, floors, and even driveways in various projects that involve crack repair. Its versatility makes it quite convenient to use, both for residential and commercial applications.

  • Ease of Application

    The product is easy to use and apply, hence can be used both by professionals and DIY enthusiasts. It can be applied using a standard caulking gun or trowel, simplify

  • Concrete Surfaces

     Star Crack Shield is highly effective for repairing cracks in concrete surfaces. It penetrates deep into the cracks, filling them completely and providing a strong and durable repair.

  • Masonry Surfaces

     Whether it's brick, stone, or other masonry surfaces, Star Crack Shield is designed to effectively fill and repair cracks. It bonds securely to the substrate, preventing further crack propagation and ensuring a long-lasting repair.

  • Plaster Surfaces

    Star Crack Shield is suitable for repairing cracks in plaster surfaces. Its unique formulation allows it to penetrate and fill cracks in plaster, providing a seamless and durable repair.

  • Interior Applications

    Star Crack Shield is ideal for most interior wall and floor crack repairs, and ceiling cracks. This product can be used on all interior substrates such as concrete, masonry, wood, drywall, and plaster of all residential and commercial building types.

  • Exterior Applications

    Similarly, Star Crack Shield can also be used outdoors for applications like repair of building facade cracks, across sidewalks, and driveways. The area it occupies in a crack is very good, as it does not wear out easily due to weather conditions, making it efficient in fixing cracks outdoors.

  • Versatile Solution

    Moreover, the compatibility of Star Crack Shield with various surfaces and its applicability for both interior and exterior work make this a versatile solution toward the repair of cracks in various structures, starting from residential and commercial to industrial settings.

    • Clean the crack well to remove loose particles or impurities.
    • Mix the two components of Star Crack Shield according to the instructions of the manufacturer.
    • With a putty knife or trowel, fill the mixed putty into the crack. Finish covering the entire area of the crack.
    • Smoothen its surface with a putty knife and remove excess putty flowing out of the crack.
    • Allow self-curing of putty for the recommended amount of time.
    • Sand if needed for a smooth finish.
    • If necessary, paint over the repaired area to match the surrounding surface.


When it comes to crack repair, accurate measurement is crucial. Before applying Star Crack Shield, it is important to measure the width and depth of the crack to determine the amount of putty needed. Additionally, it is essential to properly prepare the surface by removing any loose debris or old fillers.

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    Technical Data Sheet (TDS )


Can Star Crack Shield be used for both small and large cracks? 

Yes, Star Crack Shield is suitable for filling cracks of various sizes, from small hairline cracks to larger fissures.

Is Star Crack Shield resistant to water? 

Yes, Star Crack Shield forms a waterproof barrier, preventing water infiltration through the repaired cracks.

Can Star Crack Shield be used on vertical surfaces? 

Yes, Star Crack Shield can be applied to both horizontal and vertical surfaces, ensuring effective crack repair in any orientation.

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