Sikadur-32 TH

SIKADUR-32 TH – 2 -COMPONENT EPOXY RESIN BONDING AGENT

DESCRIPTION

When it comes to securing the strength and integrity of concrete structures, Sikadur-32 TH emerges as the go-to solution. This solvent-free, 2-component bonding agent, rooted in carefully selected epoxy resins, is engineered to establish a flawless connection between old and new concrete surfaces, delivering results that exceed expectations.

APPLICATION

Sikadur-32 TH is designed to provide a bond of far greater strength than the concrete’s tensile strength itself. It’s your trusted companion for structural bonding between existing and freshly poured concrete. Furthermore, it’s versatile enough to be used as a bonding agent on various substrates, including concrete, mortar, steel, and iron.

ADVANTAGES

• Easy Application: Sikadur-32 TH is hassle-free to apply, ensuring your construction project proceeds smoothly.
• Solvent-Free: As a solvent-free solution, it is environmentally friendly and safe for your construction crew.
• Unaffected by Moisture: Regardless of the level of moisture, this bonding agent remains resilient, offering consistent performance.
• Highly Effective on Damp Surfaces: Even in damp conditions, Sikadur-32 TH proves its mettle, maintaining its effectiveness.
• Workable at Low Temperatures: No matter the weather, you can rely on this product to deliver excellent results, even in low-temperature environments.
• High Tensile Strength: Boasting a high tensile strength, it ensures a robust and reliable bond.

PRODUCT INFORMATION

• Packaging: 2 kg (A+B)
• Colour: Light Grey
• Shelf Life: 12 months from the date of production if stored properly in undamaged, original, sealed packaging.
• Storage Conditions: Store in dry conditions, protected from direct sunlight at temperatures between 0°C and 30°C
• Density: ~1.4 kg/l

TECHNICAL SPECIFICATIONS

Property	Value
Compressive Strength	60-70 N/mm²
Tensile Strength in Flexure	30-35 N/mm²
Tensile Strength	18-20 N/mm²
Tensile Adhesion Strength (Concrete)	2.5 – 3 N/mm² (Concrete failure)
Tensile Adhesion Strength (Steel)	18 – 20 N/mm² (35°C, 65% rH., 10 days)

APPLICATION INFORMATION

• Mixing Ratio: Comp. A:B = 2:1 parts by weight.
• Consumption: 0.3 – 0.8 kg/m², depending on the porosity of the substrate.
• Pot Life:
  • 40°C: 20 min.
  • 30°C: 40 min.
  • 20°C: 90 min.
• Open Time:
  • 40°C: 2 hrs.
  • 30°C: 3 hrs.

CONSTRUCTION INSTRUCTIONS

Now that you’ve learned about the exceptional qualities of Sikadur®-32 TH and its versatile applications, let’s delve into the detailed construction instructions to ensure a successful bond between old and new concrete surfaces.

1. Surface Preparation

Before applying Sikadur-32 TH, it’s essential to prepare the surface meticulously. Follow these steps:

• Ensure the existing concrete surface is clean, free from dust, loose particles, and any contaminants.
• Remove any oil, grease, or other substances that may hinder adhesion.
• In the case of damaged or uneven surfaces, consider suitable repairs or leveling as needed.

2. Mixing the Components

Prepare to mix the two components of Sikadur®-32 TH as follows:

• Use a slow-speed electric drill with a maximum of 600 R.P.M.
• Take Component A and Component B in the ratio of 2:1 parts by weight.
• Gradually combine the components while maintaining a steady mix until a smooth and uniform consistency is achieved. This step is crucial to ensure the product’s effectiveness.

3. Application Method and Tools

Once you have your mixed adhesive ready, you can proceed with the application. Choose the application method that suits your project best:

• Brush: Apply Sikadur-32 TH directly to the prepared substrate using a brush for smaller areas and precise control.
• Roller: For medium-sized surfaces, a roller application provides an even coat of adhesive.
• Spray: In the case of larger areas, consider using a spray application method for efficient coverage.

4. Applying on Damp Surfaces

Sikadur-32 TH’s versatility extends to its ability to work effectively on damp surfaces. When dealing with damp conditions:

• Ensure that the adhesive is applied thoroughly and brushed in well to guarantee optimal bonding.
• Once applied, you must pour the new concrete within the specified time while the adhesive remains tacky to ensure a robust bond.

5. Cleaning Equipment

• Efficiency is paramount in construction, so it’s essential to maintain your tools and equipment. Clean them immediately after use using Thinner C. This not only prolongs the life of your tools but also ensures their readiness for your next project.

By following these detailed construction instructions, you’re well on your way to achieving a robust and long-lasting bond between old and new concrete surfaces with Sikadur®-32 TH. This versatile adhesive, backed by Sika’s expertise, will help you meet your construction goals efficiently and effectively. Remember to refer to the most recent Safety Data Sheet (SDS) for guidance on health, safety, and environmental considerations during your construction project.