Epirez Epoxy Acid Resistant Epoxy Binder (133AR) 20L
Chemically resistant epoxy binder for demanding industrial flooring and repairs
- Resists concentrated sulphuric acid, alkalis, solvents and aggressive chemicals
- Combine with QA2 aggregate to create 4mm trowelled epoxy mortar
- 20L binder plus 60L QA2 covers approximately 15m² at 4mm
EPIREZ Acid Resistant Epoxy Binder 133AR is a chemically resistant epoxy binder designed to be combined with selected aggregates to create trowel-applied epoxy mortar and composite flooring systems.
It is designed for concrete surfaces requiring resistance to aggressive chemicals, including concentrated sulphuric acid, alkalis and solvents. The cured epoxy mortar system also provides excellent adhesion, abrasion resistance, erosion resistance and impact resistance.
For flooring applications, the recommended mortar screed uses 1 volume of EPIREZ Acid Resistant Epoxy Binder to 4 volumes of EPIREZ Patching & Flooring Mortar Aggregate (QA2). The resulting epoxy mortar can be trowelled to create a chemically resistant surface with a minimum thickness of 4 mm.
The binder can also be used for horizontal and vertical repair mortars, with different aggregate ratios depending on the application.
Key Features and Benefits
- Broad chemical resistance: Resists a wide range of acids, alkalis and solvents.
- 98% sulphuric acid resistance: Provides very good resistance to concentrated sulphuric acid.
- Excellent mechanical properties: Ultimate compressive strength is 75 MPa.
- High abrasion resistance: Rated excellent and withstands steel wheels.
- Impact and erosion resistance: Designed for demanding industrial flooring applications.
- Excellent adhesion: Tensile bond strength is 3.8 MPa with concrete failure.
- Solvent-free: Contains 100% solids.
- Monolithic protection: Designed to create a continuous chemically resistant mortar system.
- Aggregate compatible: Can be combined with selected aggregates for different mortar applications.
- Weather resistance: Rated excellent in the technical data.
Where Can EPIREZ Acid Resistant Epoxy Binder Be Used?
EPIREZ Acid Resistant Epoxy Binder 133AR is intended for demanding industrial and commercial environments, including:
- Food industries
- Mining industries
- Plating shops
- Wastewater treatment plants and sewers
- Paper manufacturers
- Chemical plants
- Pharmaceutical industries
- Bleaching areas
- Chemical containment areas
Coverage and Estimating Data
| System | Estimated Coverage | Thickness |
|---|---|---|
| 20 L EPIREZ® Acid Resistant Epoxy Binder | 20 m² | 1 mm thick |
| 20 L Binder + 60 L EPIREZ Patching & Flooring Mortar Aggregate (QA2) | 15 m² | 4 mm thick |
Surface Preparation
Concrete surfaces should be clean, sound and properly prepared before applying the epoxy system.
- Remove previous coatings and all loose material.
- New concrete must be at least 28 days old.
- Remove oil and grease contamination using a suitable surface degreaser.
- Hose off using high-pressure water.
- Captive blast clean to expose firmly adhered aggregate.
- Rinse with water and allow the surface to dry.
Alternatively, concrete can be acid etched using 1 part commercial muriatic acid to 2 parts clean water. Neutralise the surface with fresh water and allow it to dry.
Priming
Prime concrete surfaces using EPIREZ Acid Resistant Epoxy Binder 133AR at a coverage rate of approximately 5 m² per litre.
The primer should be touch-dry before proceeding. Apply the Acid Resistant Epoxy Binder mortar within 24 hours of priming. If this period is exceeded, the sub-base should be reprimed.
Keep primed surfaces clean before applying the mortar system.
Mixing Instructions
The mixing ratio for the binder is 1 part Hardener to 3 parts Compound by volume.
- Measure enough Hardener and Compound for approximately 30 minutes of use.
- Mix using a low-speed 400 rpm power mixer.
- Ensure all material from the container sides, lip and stirrer is incorporated.
- Avoid air entrapment during mixing.
- When preparing mortar, add EPIREZ® Patching & Flooring Mortar Aggregate (QA2) while mixing.
- Continue mixing until a uniform mortar consistency is achieved.
Full units are recommended because the components are pre-measured.
Application
EPIREZ® Acid Resistant Epoxy Binder can be applied by spray, roller or brush when used as a coating or primer.
For trowellable mortar applications, combine the mixed binder with the appropriate quantity of EPIREZ® Patching & Flooring Mortar Aggregate (QA2). Pour the mixed mortar onto the prepared substrate and apply by trowel.
Wipe the trowel occasionally and sparingly with EPIREZ® Epoxy Thinner (No. 3) to assist final trowelling.
A tight surface finish should be achieved to minimise porosity. The minimum thickness for the trowellable coating is 4 mm.
Technical Specifications
| Specification | Technical Data |
|---|---|
| Product | EPIREZ Acid Resistant Epoxy Binder 133AR |
| Product Type | Chemically resistant epoxy binder |
| Mixing Ratio by Volume | 1 Hardener to 3 Compound |
| Solids Content | 100% |
| Application Temperature | 10°C to 30°C |
| Work Time | 30 minutes at 25°C |
| Cure Time | 24 hours at 25°C |
| Full Chemical Resistance | 7 days at 25°C |
| Mixed Viscosity | 0.7 Pa·s |
| Weather Resistance | Excellent |
| Abrasion Resistance | Excellent; withstands steel wheels |
| Ultimate Compressive Strength | 75 MPa |
| Flexural Strength | >10 MPa |
| Tensile Strength | >10 MPa |
| Tensile Bond Strength | 3.8 MPa (concrete failure) |
| Water Permeability | 1.2 × 10-16 m/s |
| Temperature Resistance — Wet | 65°C |
| Temperature Resistance — Dry | 150°C |
| Maximum Operating Temperature | 65°C |
| Minimum Trowellable Thickness | 4 mm |
| Binder Coverage | 20 m² per 20 L at 1 mm thick |
| Binder + Aggregate Coverage | 15 m² per 20 L Binder + 60 L QA2 at 4 mm thick |
| Shelf Life | 2 years |
Important: Always read the current manufacturer's Technical Data Sheet before mixing, surface preparation or application.
Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
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