ProJoint Contract SBR Water-based Polymer Emulsion – 5-Litre (CSBR5)

ProJoint Contract SBR for Mortar Strength and Surface Priming

MPN: CSBR5

Barcode: 5060763590076

ProJoint Contract SBR is a water-based emulsion designed for use as an additive in sand and cement mortar or as a primer for natural stone and concrete surfaces.

Who This Product Is For

This product is for professional landscapers, paving contractors, and experienced DIY users working with paving installations. It suits those who need to improve mortar performance and create reliable bonds between paving materials and substrates.

It is appropriate for residential paving projects, commercial landscaping work, and any installation involving natural stone, concrete, or cement-based substrates where enhanced adhesion and weather resistance are required.

Key Features

• Improves Mortar Strength: Increases compressive, tensile, and flexural strength for a more solid structure.
• Promotes Adhesion: Bonds natural stone and concrete effectively to substrates.
• Non-Foaming: Prevents air pockets, resulting in a smooth, consistent finish.
• Freeze/Thaw Resistance: Withstands temperature changes.
• Water Resistance: Increases the ability of the mortar to resist moisture, protecting it in damp conditions.
• High Solids Content: Contains over 30% solids, providing a strong and stable mix.

Practical Applications

This Contract SBR is suitable for both residential and commercial paving, especially with natural stone, concrete, and cement substrates. It improves mortar workability and provides added protection against weathering, providing secure bedding for a range of paving materials.

How This Fits Into a Typical Job

In paving installation, this product is used during the substrate preparation and mortar mixing stages. It is added to the cement mix before application to improve the mortar’s performance characteristics.

The typical workflow involves surface cleaning, mixing the SBR with cement at the specified ratio, applying the mortar to create the bedding layer, and then allowing proper drying before laying the paving stones or slabs.

How to Use

1. Surface Preparation: Clean the surface thoroughly to remove dust, grease, and any other contaminants.
2. Mixing: Add the SBR liquid into the cement mix. A typical ratio is 200ml per 1kg of cement.
3. Application: Apply the mixture to the surface or use as an additive in mortar mixes.
4. Drying Time: Allow the mixture to set and dry before proceeding with further work.
5. Protective Gear: Wear protective gloves and eye protection during application.

Storage and Maintenance

• Store in a cool, dry environment to maintain product quality.
• Keep the container tightly sealed to avoid contamination.
• Store away from frost to prevent damage to the product.

Specifications

• Type: Water-based emulsion
• Application: Additive for sand and cement mortar or primer for surfaces
• Solids content: Over 30%
• Typical mixing ratio: 200ml per 1kg of cement

Order ProJoint Contract SBR today to create a secure foundation for your paving projects, whether using natural stone, concrete, or cement substrates.

• Specification

  Weight	5.5 kg
  Size	5 Litres
  Density	1.02 kg/l at 20°C
  Type	Polymer Emulsion
  Form	Liquid
  Colour	White (Milky appearance)
  Odour	Weak
  pH Value	8.5 – 9.5
  Solid Content	47% – 49%
  Freeze/Thaw Resistance	Excellent
  VOC Content	Max 0.05%
  Water Solubility	Soluble in water
  Recommended Storage Temperature	5°C to 40°C (Protect from frost)

• Product FAQs

  Q: How does ProJoint Contract SBR enhance the performance of my paving mortar?
  A: ProJoint Contract SBR improves the workability and strength of sand and cement mortar, boosting its compressive, tensile, and flexural strength. This results in a more stable surface for your paving.
  Q: Can ProJoint High Performance SBR be used as a primer for porcelain paving?
  A: No, ProJoint High Performance SBR is not suitable for porcelain paving. For porcelain, we recommend using the specific ProJoint Porcelain Primer for optimal adhesion.
  Q: What is the ideal storage condition for ProJoint Contract SBR?
  A: To maintain product effectiveness, store ProJoint Contract SBR in a cool, dry place between 5°C and 40°C, making sure the container is protected from frost.
  Q: Does ProJoint SBR improve adhesion to natural stone paving?
  A: Yes, ProJoint SBR works effectively as an adhesion promoter for natural stone and concrete surfaces, helping to bond the mortar securely to the substrate.
  Q: How do I mix ProJoint High Performance SBR with cement?
  A: Typically, 200ml of ProJoint High Performance SBR is added per 1kg of cement. This reduces the required water content, thereby improving the overall mortar performance.
  Q: Is ProJoint SBR safe to use with all types of paving?
  A: ProJoint SBR is highly effective with natural stone and concrete slabs, but it is not recommended for use with porcelain paving. Always test in a hidden area before applying the full product.

• Downloads

  ProJoint Contract SBR – Preparation & Application Instructions & Safety Data Sheet