Unibond SBR

Unibond SBR

Unibond (SBR) is a modified styrene-butadiene liquid emulsion that works as a ready-to-use bonding agent for repairing spalled concrete floors, columns, beams, and slabs. Its bonding capabilities also work well when bonding old concrete and mortar to new layers of concrete and mortar.

In addition to this, Magicrete Unibond SBR also works great as a waterproofing agent for bathrooms, roofs, underground concrete tanks, walkways, and small terraces by providing a damp-resistant, anti-carbonation coating to the structures. Other use areas for UWB are:

-It can be used as an additive in injection grouting for cracks and fissures

-It works as a great anti-corrosive coating on steel structures

-Ensures long-lasting and waterproof coating when used with cement paint

-Reduces shrinkage resulting in the prevention of cracking, dust build-up, and improvement in abrasion resistance

-It works as a great bonding agent for tiles and panels

-As a top finishing for chemical resistant floors

-Is a great fixing agent for slip bricks, tiles, and marble bedding 

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Suitable For: Waterproofing underground/overhead concrete tanks, toilets, bathrooms, roofs. Also for repairing spalled concrete floors, columns, beams, slabs & cracks in masonry. Size: 200 gm, 1 kg, 5 kg & 20 kg Packs


Anti- Erosion/Corrosion

Anti- Erosion/Corrosion

UWB has a first of its kind built in, intrinsic corrosion inhibitor technology which aids in it becoming resistant to erosion and corrosion

Multipurpose and Cost-effective

Multipurpose and Cost-effective

It is a multipurpose product that has a straightforward application method and is cost-effective



Enhances the durability and strength aspects of the cementitious system, enabling it to be applied in thin, refined layers.

Non-Crack Forming

Non-Crack Forming

Averts crack formation by enhancing its ability to bend, hence increases flexural strength. It furthermore curtails shrinkage cracks related to drying and aging

Anti-Hydrolysis Agent

Anti-Hydrolysis Agent

Does not breakdown when it comes in contact with water molecules, hence it is immune to hydrolysis. Due to this quality, it can be used for external applications

Tough/ Resilient

Tough/ Resilient

It has increased resilient properties, while also increasing the toughness and hardness of cementitious film or mortar. It further prevents the generation of dust

Technical Specification

Appearance SBR Latex
Specific Gravity at 250C 1.01 +/- 0.02
pH Value 7 - 9
Pot Life 30 - 45 mins at 30o C
Chemical Resistance Resists to mild acids, alkalies, sulphates
Freeze Resistance Excellent Resistance
Shelf Life 24 months in the original packaging

Knowledge Base


Which waterproofing is best?

Opting for the best waterproofing solution for your building is crucial to ensure its integrity and well-being. The ideal waterproofing should entirely block the entry of pressurized water into your structure. Magicrete offers distinctive waterproofing solutions tailored for various application areas. We recommend selecting the finest waterproofing solutions from options such as Unimix IW, Unibond SBR, BathPRO Advanced, RoofPRO Advanced, WallPRO, PrimeKote, and CrackPRO.

Which material is used for waterproofing?

A range of waterproofing materials is utilized across various construction sectors to shield structures from water damage. The commonly employed and most effective waterproofing materials comprise Cementitious Coating, Bituminous-based Membrane, Polyurethane Liquid Membrane, Rubberized Asphalt, EDPM Rubber, Thermoplastic, and PVC Waterproofing Membrane.

What are waterproofing methods?

Selecting an appropriate waterproofing method for your specific application is crucial. The following are various techniques for waterproofing: 

1. Cementitious Waterproofing 

2. Liquid Waterproofing Membrane 

3. Bituminous Membrane Waterproofing Method 

4. Polyurethane Waterproofing 

5. Bituminous Coating Waterproofing

What are the four steps to waterproofing?

Ensuring proper waterproofing for your structure is imperative. The four fundamental steps in the waterproofing process are as follows: 

1. Clean and smooth the substrate. 

2. Prepare the sub-surface adequately. 

3. Apply the primer. 

4. Apply the waterproofing membrane.

What is waterproofing roof?

It becomes crucial to enhance the protection of your rooftop through waterproofing. The application of waterproofing materials on your roof helps prevent leaks and, concurrently, safeguards your walls and support beams from potential rot caused by water damage. Magicrete recommends opting for -RoofPRO Advanced to ensure a robust and watertight roof.

How long should waterproofing last?

Opting for high-quality waterproofing ensures a durability of at least ten years for your structure. Conversely, selecting subpar waterproofing can lead to future issues for your building. It is advisable to steer clear of inferior workmanship and low-quality waterproofing products. Instead, we recommend selecting from Magicrete's extensive range of waterproofing products, designed to provide longer-lasting protection.

What is a bituminous membrane?

Bituminous membranes are widely recognized as the most suitable waterproofing material for structures. These hydrophobic sheets ensure that water is effectively kept out of your building when installed. Bituminous sheets serve as a protective barrier for roofs, guarding against water infiltration. Additionally, these membranes function as water repellents for basements, bridges, and various other structures.

What type of cement is recommended for waterproofing?

The optimal choice for waterproofing is water repellent cement. This hydrophobic concrete incorporates Portland cement with top-notch additives. By acting as a protective waterproofing shield, water repellent cement enhances the strength of your structure. Utilizing waterproofing cement ensures prevention of water seepage.