Sika Proof SikaMix Liquid Integral Waterproofer Additive 5L 877539 (SKPROOF5)

Sika Proof SikaProof Mortar Cement Concrete Liquid Waterproofer Additive 5 Litre – Product in Packaging Transition

REF: SKPROOF5 | MPN: 877539 / 102327 | Barcode: 5055047200635

This liquid waterproofing additive improves the lifespan and water resistance of cement-based materials such as renders, screeds, concrete, and mortar by reducing permeability and surface absorption.

Who This Product Is For

This product is for builders, contractors, and serious DIY users working on projects requiring waterproof concrete and mortar. It suits professionals handling structural waterproofing, swimming pool construction, or foundation work where water resistance is critical.

It is appropriate for those working on below-ground structures, water containment systems, and external building elements exposed to moisture.

Key Features

• Waterproofing Performance: Minimises water penetration to maintain structural integrity in damp or wet conditions
• Improved Workability: Gives smoother mixing and easier application for renders and screeds
• Low Toxicity: A safe choice for various construction tasks
• Reduced Surface Absorption: Helps prevent moisture ingress for long-lasting results
• Usage: Suitable for swimming pools, water tanks, roofs, and below-ground structures

Practical Applications

• Below-Ground Waterproofing: Protects foundations and retaining walls from water pressure and seepage
• Pool and Tank Linings: Creates durable, water-resistant surfaces for non-potable water storage
• Roof Areas: Offers a protective layer to prevent leaks and weather-related damage
• External Rendering and Pointing: Improves resistance to moisture in outdoor structures
• Floor Screeds: Delivers water-resistant finishes for internal or external flooring applications

How This Fits Into a Typical Job

This additive is used during the mixing stage of concrete, mortar, or render preparation. It becomes part of the material matrix, providing waterproofing properties throughout the cured product rather than being applied as a surface coating.

The process involves adding it to gauging water before mixing with cement and aggregates, then applying the mixture to prepared surfaces. Proper curing follows to develop full waterproofing performance.

Specifications

• Product Type: Liquid waterproofing additive
• Pack Size: 5 litre container
• Coverage: 250ml per 25kg of cement
• Application Areas: Below-ground and above-ground structures
• Suitable Materials: Cement-based renders, screeds, concrete, and mortar

How to Use

1. Surface Preparation:
   • Make sure the substrate is clean, sound, and free from loose debris, grease, and dirt
   • Pre-wet porous surfaces and prime with a bonding slurry created using cement and SikaBond SBR+
2. Mixing:
   • Add the SikaProof to the gauging water during mixing
   • Use 250ml of the product per 25kg of cement for best results
   • Use a power mixer to blend the mix evenly
3. Application:
   • Apply the mixture directly to the prepared surface and aim for a smooth, even distribution
   • Work wet-on-wet to maximise adhesion and effectiveness
4. Curing:
   • Protect the applied mortar or render from premature drying to allow proper curing

Storage and Maintenance Tips

• Store in a cool, dry location away from direct sunlight to maintain product quality
• Reseal the container tightly after each use to prevent contamination
• Regularly inspect tools and equipment used with this product to keep them in good condition

Order the Sika Proof Liquid Waterproofer today to achieve outstanding waterproofing results across your building projects. Whether you’re securing foundations or lining pools, this product provides the protection and reliability you need.

• Specification

  Weight	6 kg
  Reference Code	SKPROOF5
  Size	5 litre
  Manufacturer	Sika
  Type	Liquid Waterproofer Admixture
  Reference Code sika	102327

• Product FAQs

  Q: What types of projects is this product suitable for?
  A: This waterproofing additive is ideal for both new builds and renovations, including swimming pools, water tanks, roof repairs, and below-ground structures.
  Q: How does it improve workability?
  A: Modifying the mix’s consistency enables smoother application while maintaining the integrity of the render or mortar.
  Q: Can this product be used with any type of cement?
  A: Yes, it is compatible with all standard cement types used in construction projects.
  Q: Is it safe to use indoors?
  A: Absolutely, its low-toxicity formulation makes it suitable for indoor applications such as tanking walls or floors.
  Q: Does it require special tools for application?
  A: No specialised tools are necessary; standard plastering or rendering tools are sufficient.
  Q: What precautions should I take during application?
  A: Avoid premature drying by protecting the surface and ensuring proper surface preparation for optimal adhesion.

• Downloads

  Sika Proof SikaProof Liquid Waterproofer Technical Data sheet
  Sika Proof SikaProof Liquid Waterproofer Safety Data Sheet