Fosroc Waterproofing Chemicals

Product Details:

Brushbond RFX page 1 of 3 High performance elastomeric cementitious waterproof coating Uses Brushbond RFX is an high performance elastomeric cementitious coating used for waterproofi ng and to protect atmospherically exposed reinforced concrete structures from attack by acid gases, chloride ions, oxygen & water. Brushbond RFX is suitable for all types of structures including those in coastal environments. The product can be used on concrete, brick and blockwork substrates and is equally suitable for new and existing structures. The product is designed to reface and even out variations in concrete and masonry surfaces and bridge shrinkage cracks. It provides a seamless, fl exible waterproof coating suitable for water tanks, reservoirs, drainage culverts basements, roofs, toilets & wet areas. The product provides a tough durable water resistant coating which can withstand light pedestrian traffi c and also has excellent weather resistance for exterior applications. Advantages   Excellent barrier to carbon dioxide, chloride and sulphate ions.   Allows water vapour to escape from the structure.   Waterproof-suitable for water retaining structures.   High resistance to the eff ect of long-term weathering, durable in all climate conditions including UV attack.   Non toxic - ideal for potable water tanks.   Flexible, with thermal expansion similar to concrete.   bond to concrete and masonry.   Good crack accommodation capacity.   Minimum surface preparation needed and low labour costs. Standards compliance Tested to ASTM D4060, ASTM D4541, ASTM D638, ASTM C836. Description Brushbond RFX is a two component acrylic polymer modifi ed cementitious coating which consists of Brushbond RFX powder and Brushbond RFX liquid acrylic emulsion. It requires only the addition of clean water at site to produce an easily brushable coating. Brushbond RFX can simply be applied by stiff brush, roller or trowel to obtain the desired thickness. Technical Support Fosroc off ers technical support service to specifi ers, endusers and contractors, as well as on-site technical assistance in locations all over the country. Properties Pot life 30 min @ 27oC Mixed densit 1.68 g/cc (brushable consistency) Colour Grey Application temp. Not < 10oC Adhesion to concrete > 1N/mm2 Toxicity Non-toxic Static cractk accomodation 1mm Note: The typical physical properties given above are derived from testing in a controlled laboratory environment. Results derived from testing fi eld-applied samples may vary, dependent on actual site conditions. Application Instructions Surface Preparation All surfaces which are to receive the coating must be free from oil, laitance, grease, wax, dirt or any other form of foreign matter which might aff ect adhesion. Typically concrete surfaces can be cleaned using high pressure water jet or grit blasting or by proper wire brushing Spalled surfaces or those containing large blow holes, cracks and other such defects should be repaired using Renderoc concrete repair mortars. For further advice on suitable repair mortars, contact the local Fosroc Offi ce. Mixing Brushbond RFX liquid concentrate should be poured into a plastic container or metal drum. Clean fresh water is added in the proportions shown below and mixing commenced with a propeller agitator attached to a slow speed drill (500pm). The powder component should be added gradually to the liquid to avoid lump formation and mixed for 2-4 minutes. Brushbond RFX should be immediately used after mixing. Do not mix more material than can be used within the pot life. Keep stirring Brushbond RFX during the application Mixing ratio Brushbond RFX Brush Application Components Indl Pack Small Brushbond RFX powder 15kg 5kg Brushbond RFX liquid 5.088kg 1.71kg

Block bonding adhesive, also known as masonry adhesive or block adhesive, is a specialized bonding agent used to adhere masonry units such as concrete blocks, bricks, stones, or pavers together. Here's an overview of block bonding adhesive:

1. Composition: Block bonding adhesives are typically formulated from a blend of synthetic resins, cementitious materials, aggregates, and chemical additives. These ingredients work together to create a strong and durable bond between masonry units, providing structural integrity and stability to the construction assembly.

2. Adhesive Properties: Block bonding adhesives offer excellent adhesion to both porous and non-porous surfaces, including concrete, masonry, metal, and wood. They form a strong, flexible bond that withstands external loads, thermal expansion and contraction, and environmental exposure.

3. Workability: Block bonding adhesives are available in various formulations, including paste, liquid, or powder forms, to suit different application methods and project requirements. They are easy to apply using trowels, brushes, or caulking guns and provide sufficient open time for positioning and adjustment of masonry units before curing.

4. Fast Cure Time: Many block bonding adhesives feature rapid curing properties, allowing for quick assembly and construction progress. Depending on the formulation and environmental conditions, the adhesive can achieve initial set and handling strength within minutes to hours, enabling faster project completion.

5. Water Resistance: Block bonding adhesives exhibit excellent water resistance and weatherability, making them suitable for both interior and exterior applications. They withstand exposure to moisture, rain, humidity, and freeze-thaw cycles without compromising bond strength or durability.

6. Flexibility: Some block bonding adhesives possess elastomeric or flexible properties, allowing for movement and expansion of the bonded assembly. This flexibility accommodates structural settlement, thermal fluctuations, and seismic forces, reducing the risk of cracking or delamination.

7. Compatibility: Block bonding adhesives are compatible with various masonry materials, including concrete blocks, clay bricks, natural stones, and pavers. They adhere well to clean, dry surfaces and can be used for vertical, horizontal, or overhead applications in new construction, repair, or renovation projects.