Concrete Crack Filling Additive Supplier ​

For cement crack filler and a part of acrylic crack filler, the following additives can be indispensable.

• Redispersible Polymer Powder (RDP): As an essential binder, it can provide flexibility to prevent brittle cracking and strong adhesion to old concrete substrates.
• MHEC/HPMC: Cellulose ethers are critical for water retention and thixotropy. For vertical crack repair, MHEC is preferred due to its higher gel temperature.
• Cellulose Fiber: It can deliver physical crack resistance. By forming a mechanical skeleton, the fiber can help prevent micro-crack propagation.

In concrete crack repair, the additives below are selected based on repair conditions and showcase our system expertise.

• Polypropylene (PP) Fiber: Complementary to cellulose fibers. Longer fibers can create a 3D network to better distribute stress across larger cracks.
• Powder Defoamer: Eliminates trapped microbubbles in the crack repair mortar, which can enhance density and mechanical strength.
• Guar Ether: This superior thixotropic agent can enhance anti-sagging performance and prolong workable open time during construction.

For special requirements on your concrete crack filling system, you can selectively use these additives.

• Calcium Formate: It can accelerate early strength, which is ideal for emergency repairs when the filled crack must bear load within hours.
• Water Repellent Agent: Used to improve the repair layer’s impermeability. It can prevent rain and moisture from penetrating repaired cracks, avoiding corrosion of embedded steel.