Sikadur-52 TH

SIKADUR-52 TH – 2-COMPONENT LOW VISCOSITY INJECTION RESIN

DESCRIPTION

Sikadur-52 TH is a remarkable 2-component, solvent-free, low viscosity injection liquid, crafted from high-strength epoxy resins. This potent mixture, once blended, can be expertly injected into cracks and cavities in concrete, where it transforms into a robust, high-strength material.

APPLICATION

Sikadur-52 TH serves as the go-to choice for filling and sealing voids in vital structural components such as columns, beams, foundations, decks, and water-retaining structures. Beyond sealing, it acts as a formidable shield against water infiltration and simultaneously bonds concrete sections together, thus restoring the original structural integrity.

ADVANTAGES

Sikadur-52 TH boasts an array of exceptional characteristics and advantages:

• Deep Penetration: This deeply penetrative liquid ensures comprehensive coverage.
• Solvent-Free: The absence of solvents makes it an environmentally friendly option.
• Versatile: Suitable for use in both dry and damp conditions, making it highly adaptable.
• Cold-Friendly: It remains usable at low temperatures, ideal for various climates.
• Shrinkage-Free Hardening: Sikadur-52 TH hardens without any undesirable shrinkage.
• Strength and Adhesion: It exhibits both high mechanical and adhesive strength, ensuring long-lasting results.

PRODUCT INFORMATION

• Packaging: 2 kg (A+B) Pre-batched unit, available in boxes of 12 x 2kg.
• Color: Yellowish/transparent
• Shelf Life: A generous 12 months when unopened and stored under appropriate conditions.
• Storage Conditions: Keep within a range of +5°C to +40°C.
• Density: 1.1 kg/ltr
• Viscosity: 290 c. poise at 20°C R.T. type, 130 c. poise at 30°C R.T. type

TECHNICAL SPECIFICATIONS

Here are the technical specifications for Sikadur-52 TH:

Property	Value
Tensile Strength	20-25 N/mm²
Tensile Adhesion Strength to Concrete (concrete failure)	3-4 N/mm²
Tensile Adhesion Strength to Steel (steel sandblasted)	10-15 N/mm²

(Tested at 35°C, 65% r.H., 10 days)

CONSTRUCTION INSTRUCTIONS

When working with Sikadur-52 TH for concrete repair and sealing, following precise construction instructions is crucial to ensure the best results and long-lasting structural integrity. Here’s a step-by-step guide on how to properly apply Sikadur-52 TH:

• Equipment and Safety Precautions
  • Before you begin, make sure you have the following equipment ready:
    • Sikadur-52 TH components: A (resin) and B (hardener).
    • Application equipment: Depending on the application method, you may need a cartridge gun, injection equipment, or similar tools.
    • Mixing equipment: Clean mixing container and tools.
    • Protective gear: Safety glasses, gloves, and appropriate protective clothing.
    • Cleaning materials: Suitable solvents for cleaning equipment.

Ensure that you follow all safety guidelines mentioned in the Safety Data Sheet (SDS) provided with the product.

Surface Preparation

• Inspect and Clean: Examine the concrete surface thoroughly. Remove any loose or deteriorated concrete, dust, grease, or other contaminants. Clean the surface with a wire brush and compressed air, if necessary.
• Surface Profile: The surface should have an appropriate surface profile. Ideally, it should be rough and open-textured to promote adhesion.
• Moisture Content: Ensure that the concrete surface is damp but not excessively wet. Sikadur-52 TH is suitable for use in both dry and damp conditions.

Mixing Sikadur-52 TH

• Mixing Ratio: The correct mixing ratio is A:B = 2:1, both by weight and volume. For small quantities, you can use the pre-batched units provided.
• Mixing: Thoroughly mix component A (resin) and component B (hardener) using a clean container and a mixing tool until you obtain a uniform color and consistency. Ensure there are no streaks or color variations.
• Pot Life: The pot life of Sikadur-52 TH varies with temperature. Refer to the product information for the specific pot life at the temperature of your environment.

Application

• Crack Width: The maximum crack width that can be effectively injected is 5 mm. Ensure that the crack or cavity meets this criterion.
• Concrete Age: Apply Sikadur-52 TH only to concrete that is at least 3-6 weeks old. This allows the concrete to cure properly.
• Injection Methods: Depending on the nature of the work, you can choose from various injection methods. Common methods include gravity feed, pressure injection, or surface sealing. Consult our Technical Department for guidance on the best method for your specific application.
• Injection Process: Inject the mixed Sikadur-52 TH into the crack or cavity, ensuring thorough penetration and complete filling. Work systematically, moving from one end to the other to avoid air entrapment.
• Tooling: If necessary, use a spatula or trowel to finish the surface. Remove excess material and create a smooth finish, matching the surrounding concrete.
• Curing: Allow Sikadur-52 TH to cure as per the manufacturer’s recommendations. Curing times may vary depending on temperature and environmental conditions.

Cleanup

• Clean Equipment: Immediately clean all equipment and tools with an appropriate solvent as specified in the SDS.

Final Considerations

• Quality Assurance: To achieve the performance characteristics stated in the product data, it’s essential to maintain the correct mixing ratio and follow all construction instructions precisely.
• Local Regulations: Be aware that local regulations and specific project requirements may vary, so always ensure you are in compliance with local standards.

By following these detailed construction instructions, you’ll harness the full potential of Sikadur-52 TH for your concrete repair and sealing projects. For any specific questions or assistance with your application, don’t hesitate to contact our Technical Department.