Fosroc Brushbond UltraFlex: A Comprehensive Guide to Waterproofing Solutions

1. Introduction
   • Brief overview of Fosroc Brushbond UltraFlex
   • Role of Space Arc Engineering as distributor and applicator in India
2. Key Features of Brushbond UltraFlex
   • Elastomeric waterproof membrane
   • Suitable for various applications
3. Main Uses
   • Roof areas, wet areas, and more
4. Components and Application
   • Two-component polymer modified waterproof membrane
   • Easily brushable coating
5. Advantages
   • Low VOC
   • No primer required
   • Elastomeric
   • Foot traffic resistant
   • Factory pre-blended
6. Technical Specifications
   • Compliance with various standards
7. Properties of Brushbond UltraFlex
   • Pot life, adhesion, hardness, tensile strength, and more
8. Application Instructions
   • Surface preparation
   • Mixing
   • Application methods
9. Coverage and Storage
   • Coverage per pack
   • Shelf life
10. Health and Safety Precautions

• Non-toxic but alkaline
• Protective measures​

  11. Conclusion
  12. FAQs

Introduction
Fosroc Brushbond UltraFlex is a high-performance, ultra-flexible elastomeric waterproofing membrane system for concrete and masonry surfaces. Manufactured by Fosroc Chemicals India Private Limited, it is sold and supplied in India by their official distributor and applicator, Space Arc Engineering, for the entire Fosroc Range of Products .

Key Features of Brushbond UltraFlex
Brushbond UltraFlex, when fully cured, provides a seamless elastomeric waterproof membrane suitable for various applications, including roof areas, wet areas , bathrooms, water tanks, swimming pools, reservoirs , and precast joints requiring a tough, watertight membrane .

Main Uses
This versatile product is perfect for use in roof areas, wet areas , bathrooms, water tanks, swimming pools, reservoirs, and precast joints where a tough elastomeric water-tight membrane is required .

Components and Application
A two-component, polymer-modified waterproof membrane called Brushbond UltraFlex is offered in ready-mix kits. When combined, a coating that is easily applied with a stiff brush, roller, or trowel to obtain the necessary thickness is created. Specifically chosen cements, sorted hard-wearing aggregates, powdered additives, and a liquid polymer component make up the product, which offers remarkable adhesion, resilience, flexibility, toughness, and durability..

Advantages
Brushbond UltraFlex offers several benefits :

• Low VOC
• Can be applied to damp substrates
• No primer required
• Elastomeric - able to bridge cracks
• Able to take foot traffic when cured
• Factory pre-blended two-component system ensures quality control at the site

Technical Specifications
Brushbond UltraFlex complies with the requirements of :

• DIN 1048, Part 5, 1991
• ISO 7783:2018
• ASTM D412: 2013
• Deemed suitable for use with potable water sources as tested per USFDA CFR 175-300

Properties of Brushbond UltraFlex
Some key properties of this product include:

• Pot life at 27ºC: Approx. 1.0 hr
• Adhesion to substrate: > 1.0 N/mm2 (ASTM D4541:2002)
• Shore A hardness (ASTM D2240:2010): 79
• Tensile strength (ASTM D412-2013): >1.50 N/mm2

• Mixed Density @ 27oC: 1.50 + 0.1 g/cc
• Rapid Chloride Permeability (ASTM C1202): very low
• CFR 175-300 of the US FDA's migration test: successful
• Elongation at break (ASTM D412-2013): > 150%
• EN12390 (part 8) Water Permeability (2008) Zero negative pressure
• Water vapor transmission (ISO 7783:2018): ≤20.81 g/m2.hr
• Crack bridging (ASTM C1305): 1.0 mm
• Foot traffic: 6 hr +/- 1 hr

Application Instructions

• Preparation

Any foreign material that could hinder adhesion, such as oil, grease, wax, dirt, or other impurities, must be removed from all surfaces before applying Brushbond UltraFlex coating. Concrete that has cracked and deeply disintegrated should be removed and repaired using the Renderoc System..

• Mixing

Pour the Brushbond UltraFlex Liquid concentrate from the plastic container into the metal drum supplied and mix mechanically with a slow-speed drill (350-450 rpm) fitted with a Fosroc Mixing Paddle (MR3). Gradually add the powder component to the liquid, avoiding lump formation, and mix for 4-5 minutes until a smooth, consistent mix is achieved. Use the substance inside the advised pot life .

• Application

Spray some water on the surface before applying Brushbond UltraFlex. Employ a short, stiff-bristle brush with a breadth of 120 to 200 mm. Like painting, apply in one or two coats as necessary. Make sure the substrate is level and repaired of any undulations or potholes before applying it with a trowel. Applying spray should be done with Graco equipment. ToughTek F800e, TEXSPRAY RTX5500px, or a comparable brand .

Coverage and Storage
One 25kg pack of Brushbond UltraFlex covers approximately 16m2 at about 1.0mm thickness, depending on surface conditions and water usage. Note that coverage figures are theoretical and may vary due to wastage factors and the nature of possible substrates .
Brushbond UltraFlex has a shelf life of 12 months in unopened packs, kept in a dry store. In high humidity locations, the shelf life may be reduced to 9 months .

Health and Safety Precautions
Although non-toxic, Brushbond UltraFlex has an alkaline pH. During application, gloves and goggles should be worn. Wash off any splashes with plenty of fresh water if they get on your skin or your eyes. See a doctor if your irritability persists. To reduce the creation of dust, handle powder items carefully. If excessive dust is inevitable, wear a light mask .

Conclusion
Fosroc Brushbond UltraFlex is an excellent choice for waterproofing and protecting various surfaces in a range of applications. With its numerous advantages, technical specifications, and ease of application, it is a reliable solution for your waterproofing needs .

FAQs

1. What is Fosroc Brushbond UltraFlex?
   Fosroc Brushbond UltraFlex is a high-performance, ultra-flexible elastomeric waterproofing membrane system for concrete and masonry surfaces .
2. What are the main uses of Brushbond UltraFlex?
   It is appropriate for locations that need a strong, watertight membrane, such as roofs, wet spaces, bathrooms, water tanks, swimming pools, reservoirs, and precast joints .
3. What are the key advantages of Brushbond UltraFlex?
   Key advantages include low VOC, application on damp substrates, no primer required, elastomeric properties to bridge cracks, foot traffic tolerance when cured, and factory pre-blended two-component system for quality control at the site .
4. How do you apply Fosroc Brushbond UltraFlex?
   Fosroc Brushbond UltraFlex can be applied using a stiff brush, roller, or trowel to achieve the desired thickness. Ensure that the surface is clean and free from contaminants, and dampen it before applying the coating .
5. What is the coverage and shelf life of Brushbond UltraFlex?
   A 25kg pack of Brushbond UltraFlex covers approximately 16m2 at about 1.0mm thickness, depending on surface conditions and water usage. It has a shelf life of 12 months in unopened packs stored in a dry environment. In high humidity locations, the shelf life may be reduced to 9 months .​

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