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Use Gripset 11Y for: Dramatically improving the performance of cement-based renders, screeds, mortars, tile adhesives and grouts, or creating a high-bond primer slurry for demanding applications.
Gripset 11Y is a concentrated SBR (Styrene-Butadiene Rubber) latex polymer admixture designed to significantly enhance the properties of standard cement-based compounds. By adding Gripset 11Y according to the specified mix designs, tradespeople can create high-performance renders, screeds, patch mortars, and enhance tile adhesives or grouts with improved adhesion, strength, water resistance, flexibility, and overall durability. It's ideal for demanding situations including external exposure, wet areas, immersed conditions, and subterranean applications. Gripset 11Y can also be used to formulate a powerful high-bonding primer slurry, perfect for preparing surfaces before applying modified mixes.
Primer Slurry Information: Gripset 11Y allows you to create a high-performance bonding primer slurry on-site. Mix 1 part Gripset 11Y, 1 part sharp wash sand, and 1 part fresh Portland cement (by volume). This slurry acts as an exceptional bonding agent on porous surfaces, ideal before applying 11Y-enhanced renders or screeds, particularly in immersed or underground areas. It's also recommended as the primer for Gripset C-BED engineered screed. Apply the slurry at approx. 1mm thickness.
Cure Time Information: As an admixture, Gripset 11Y doesn't have its own cure time; it modifies the cure of the cement mix it's added to. However, it contributes to higher early strength development, meaning the modified mix gains strength faster than a standard mix. Final cure time depends on the overall mix design, thickness, temperature, and humidity.
Coverage Rate: When used to create the primer slurry (1:1:1 mix), 1 litre of Gripset 11Y liquid will yield enough slurry to cover approximately 3 square metres. When used as an admixture for screeds, renders, mortars, or adhesives, the amount of Gripset 11Y used depends on the specific mix design ratio (e.g., 1 part 11Y to 3 parts water, or 1 part 11Y to 1 part water) and the total volume of mix being prepared.
Chemical Properties: Gripset 11Y is an SBR (Styrene-Butadiene Rubber) latex polymer dispersion in water. This chemistry provides excellent water resistance and durability, superior to typical PVA admixtures, especially for external or wet area use.
Key Features of Gripset 11Y
- Boosts Adhesion Significantly: Greatly improves the bond strength of cement mixes to various substrates, reducing failure risk. Creates high-tack primer slurries.
- Enhances Water Resistance: Creates water-resistant mortars, screeds, and renders suitable for wet areas, immersed conditions, and external applications. Helps minimise efflorescence.
- Increases Strength & Durability: Produces harder, more durable, and abrasion-resistant cement compounds capable of handling tougher conditions and traffic.
- Improves Flexibility & Crack Resistance: Modified mixes are less brittle and better able to withstand minor movement, vibration, and thermal stresses, reducing shrinkage cracking.
- Superior Frost & Salt Resistance: Ideal for applications in cold climates or coastal zones, protecting against freeze/thaw cycles and salt attack.
- Reduces Permeability: Makes cement mixes denser and less porous, restricting penetration by water and gases.
- Multi-Functional Versatility: One product acts as a primer slurry component AND an admixture for renders, screeds, patch mortars, tile adhesives, and grouts.
Why Choose Gripset 11Y:
- Elevate Standard Mixes: Transform basic sand/cement mixes into high-performance compounds for reliable results in demanding jobs.
- Solve Common Problems: Addresses issues like poor adhesion, water damage, cracking, low strength, and rapid wear in traditional cement mixes.
- Increase Job Versatility: Use one additive for multiple tasks – priming, rendering, screeding, patching, tiling – simplifying inventory.
- Achieve Long-Lasting Results: Enhanced durability means repairs and finishes last longer, reducing callbacks and improving client satisfaction.
- Cost-Effective Performance: Potentially more economical than buying multiple specialised pre-bagged products, leveraging readily available cement and sand.
When to Choose Gripset 11Y versus Alternatives:
- Choose Gripset 11Y over standard sand/cement mixes when: You need improved adhesion, water resistance, strength, flexibility, or durability, especially for external work, wet areas, immersed conditions, or high-wear areas.
- Choose Gripset 11Y over PVA admixtures when: Superior water resistance and external durability are required (PVA is generally for internal use only).
- Choose Gripset 11Y over Acrylic admixtures when: The specific benefits of SBR (often excellent bond, water resistance, flexibility) align best with project needs. Check specific product data if comparing high-end acrylics.
- Consider pre-bagged performance mortars/renders when: Convenience and guaranteed mix proportions are paramount, and the specific properties of the pre-bagged product meet the need. 11Y offers more flexibility in mix design.
Trade-Specific Applications for Gripset 11Y:
For Tilers:
- Application: Enhancing cement-based tile adhesives and grouts (using 1:3 mix liquid) for improved water resistance and bond strength in demanding areas like swimming pools, external facades, or wet areas. Creating high-bond, water-resistant screeds (using 1:3 mix liquid) under tiles.
- Performance Benefits: Reduces risk of adhesive failure in wet conditions. Creates more durable, water-resistant grouts. Allows creation of custom high-performance screeds on site.
For Renderers / Plasterers:
- Application: Creating high-bond, water-resistant, and crack-resistant renders (using 1:3 mix liquid) for external walls, damp areas, or as a base for subsequent finishes. Use the 11Y primer slurry first for exceptional adhesion, especially on difficult substrates.
- Performance Benefits: Significantly reduces likelihood of render delamination or failure due to moisture. Improved durability and reduced shrinkage cracking leads to a better quality finish.
For Concreters / Concrete Repairers:
- Application: Formulating durable, high-strength, water-resistant patch repair mortars (using 1:1 mix liquid) that bond tenaciously to prepared concrete. Creating robust screeds (using 1:3 mix liquid) for toppings or overlays. Using the 11Y primer slurry ensures maximum bond for repairs.
- Performance Benefits: Repairs last longer, resist weathering and traffic better. Screeds achieve higher strength and durability. Thin build coatings down to 3mm are possible with the patch mortar mix.
For Waterproofers:
- Application: Using the 11Y primer slurry as a high-performance, water-resistant primer on porous concrete/masonry before applying certain membrane systems (check compatibility) or in underground/immersed areas. Enhancing cement mortars used for creating fillets or detailing prior to membrane application.
- Performance Benefits: Creates a reliable, high-bond priming layer. Enhances the water resistance and durability of critical cementitious detailing components within a waterproofing system.
Application Information
- Required Tools: Clean mixing pails/buckets, electric mixer with paddle attachment, measuring jugs/containers (for accurate ratios), trowels, floats, screeds, brushes/rollers/brooms/squeegees (for slurry application).
- Trade-Specific Tips: *Accuracy is Key:* Always measure components (11Y, water, sand, cement) accurately by volume according to the specified mix design for the application. *Use Quality Materials:* Employ clean, sharp wash grade sand and fresh Portland cement for best results. *Surface Prep Crucial:* Ensure substrates are thoroughly cleaned and prepared before applying slurry or modified mixes. *Wet-on-Wet Application:* For optimum adhesion of renders/screeds/mortars, apply them onto the 11Y primer slurry while it is still wet or damp.
- Common Issues and Solutions: *Poor Performance:* Likely due to incorrect mix ratios, poor quality sand/cement, inadequate mixing, or poor surface preparation. Remix carefully following TDS. *Slurry Too Thick/Thin:* Adjust slightly by adding a small amount of the pre-mixed liquid (11Y/water) or dry components (sand/cement) – but try to hit the ratios first. *Poor Bond:* Surface may have been contaminated, not prepared correctly, or primer slurry allowed to dry completely before overlaying mix ('wet-on-wet' preferred).
Storage and Shelf Life
- Storage Requirements: Store pails tightly sealed in a cool, dry, frost-free area, preferably at room temperature. Keep off cold concrete floors. Protect from direct sunlight.
- Shelf Life Information: 12 months from date of manufacture when stored correctly in unopened containers. Check pail for date.
- Temperature Considerations: Avoid freezing temperatures, as this can damage the latex emulsion.
Certifications and Compliance
- While Gripset 11Y itself doesn't carry specific AS certifications, its use as directed allows the creation of cementitious mixes with enhanced properties that contribute to meeting the performance requirements of relevant Australian Standards (e.g., for tiling systems, rendering, concrete repair, waterproofing systems).
- Manufactured by RLA Polymers. Comes with guarantees against manufacturing defects under Australian Consumer Law and potentially project-specific warranties when used within a specified Gripset system.
Frequently Asked Questions About Gripset 11Y
Q: What's the main difference between SBR latex (like Gripset 11Y) and PVA bonding agents/admixtures?
A: SBR latex (Gripset 11Y) offers significantly better water resistance and durability compared to most PVA products. This makes SBR suitable for external applications, wet areas, and even immersed conditions, whereas PVA is generally limited to internal, dry applications as it can re-emulsify when wet.
Q: Can I use Gripset 11Y to make a render completely waterproof on its own?
A: Gripset 11Y dramatically improves the water *resistance* of renders and reduces permeability. While it makes the render suitable for water exposure, it doesn't typically classify it as a fully 'waterproof' membrane on its own according to AS standards for critical areas. For guaranteed waterproofing, use a dedicated membrane system like those from Gripset.
Q: How much Gripset 11Y do I add to a standard 20kg bag of tile adhesive?
A: You typically replace some or all of the required water with a diluted Gripset 11Y solution. The TDS specifies a mixing liquid ratio of 1 part 11Y to 3 parts water (by volume) for enhancing adhesives/grouts. Mix this liquid first, then add it to the adhesive powder according to the adhesive manufacturer's instructions for total liquid volume, mixing to the desired consistency.
Q: Does Gripset 11Y change the colour of the cement mix?
A: Gripset 11Y is a white liquid. It may slightly lighten the colour of the final cured cement mix compared to using water alone, but the primary colour will still be determined by the cement and sand used.
Q: I applied the 11Y primer slurry yesterday. Can I apply my render mix today?
A: For optimal adhesion, the TDS recommends applying the render or screed 'wet on wet' onto the damp primer slurry. If the slurry has fully dried (e.g., overnight), the bond may be compromised. It's best practice to only prime an area that can be covered with the subsequent mix while the primer is still fresh/damp.
Q: Is Gripset 11Y safe to use indoors? Does it have a strong smell?
A: Gripset 11Y is a water-based latex emulsion and typically has a low odour compared to solvent-based products. It is generally safe for indoor use with standard ventilation. However, always consult the Safety Data Sheet (SDS) and wear appropriate PPE when handling any chemical product, including gloves and eye protection.
Use Gripset 11Y for:
- High-Bond Primer Slurry: Creating a tenacious bonding primer before applying renders, screeds, or repair mortars, especially on porous or difficult substrates, and for immersed/underground areas.
- Water-Resistant Renders & Screeds: Modifying sand/cement mixes to produce durable, water-resistant finishes suitable for external walls, wet areas, balconies, and under tiles.
- Durable Patching Mortars: Formulating strong, water-resistant mortars for repairing damaged concrete or masonry, ensuring excellent adhesion and longevity. Can be used for thin builds (min 3mm).
- Enhancing Tile Adhesives & Grouts: Improving the water resistance, flexibility, and bond strength of standard cement-based tile adhesives and grouts for demanding applications like pools or external tiling.
- Improving General Cement Mix Performance: Boosting overall strength, durability, flexibility, and resistance to cracking, frost, and salt for various cementitious applications.
Why Use Gripset 11Y for:
- Superior Adhesion Results: Ensures renders, screeds, and patches bond strongly, preventing delamination and failure, particularly with the primer slurry system.
- Creating Water-Resistant Mixes: Allows formulation of mortars, renders, and screeds suitable for prolonged water exposure or immersion, reducing water damage risks.
- Boosting Strength & Durability: Produces significantly tougher, harder-wearing cement compounds that resist abrasion and impact better than standard mixes.
- Increasing Flexibility & Reducing Cracks: Adds flexibility to typically brittle cement mixes, helping accommodate minor movements and reducing the likelihood of shrinkage or stress cracking.
- Extending Service Life in Harsh Conditions: Improved resistance to frost, salt, and general weathering leads to longer-lasting results in challenging Australian environments.
How to use Gripset 11Y:
1. Mixing & Applying 11Y Primer/Sealing Slurry:
- Measure Components: Using clean containers, measure by volume: 1 part Gripset 11Y, 1 part clean sharp wash sand, 1 part fresh Portland cement.
- Mix: Add components to a clean mixing pail. Mix slowly with an electric mixer and paddle until a smooth, lump-free, fluid slurry is formed.
- Settle & Re-stir: Allow the mix to stand for 3-4 minutes, then briefly re-stir.
- Prepare Surface: Ensure substrate is clean, sound, and prepped. Very porous surfaces can be lightly dampened (SSD - Saturated Surface Dry).
- Apply Slurry: Apply evenly using a brush, medium nap roller, broom, or squeegee to achieve a film thickness of approximately 1.0mm. Cover approx. 3m² per litre of Gripset 11Y used in the mix.
- Apply Overlay: For best results, apply the subsequent 11Y-enhanced render, screed or mortar while the primer slurry is still wet or damp ('wet on wet' application).
2. Mixing & Applying 11Y Enhanced Screeds/Renders:
- Prepare Dry Mix: In a separate container or mixer, combine 1 part fresh Portland cement and 4 parts fine sharp wash grade sand (by volume). Mix thoroughly.
- Prepare Liquid Mix: In a clean pail, combine 1 part Gripset 11Y and 3 parts clean water (by volume). Mix well.
- Combine & Mix: Gradually add the Liquid Mix to the Dry Mix while mixing with an electric mixer/paddle (or suitable large mixer) until the desired screed or render consistency is achieved.
- Prime Surface: Apply the 11Y Primer/Sealing Slurry (see guide 1 above) to the prepared substrate first.
- Apply Screed/Render: Apply the mixed 11Y-enhanced screed or render onto the wet/damp primer slurry using appropriate trowels, floats, or screeding tools, compacting well. Finish as required.
3. Mixing & Applying 11Y Enhanced Patch Mortars:
- Prepare Dry Mix: Combine 1 part fresh Portland cement and 3 parts fine sharp wash grade sand (by volume). Mix thoroughly.
- Prepare Liquid Mix: In a clean pail, combine 1 part Gripset 11Y and 1 part clean water (by volume). Mix well.
- Combine & Mix: Gradually add the Liquid Mix to the Dry Mix while mixing until a suitable mortar consistency for patching is achieved.
- Prime Surface: Apply the 11Y Primer/Sealing Slurry (see guide 1 above) to the prepared repair area.
- Apply Patch Mortar: Apply the 11Y-enhanced mortar onto the wet/damp primer slurry, pressing firmly into the repair area. Build up as needed (minimum 3mm for thin coatings). Finish level with surrounding surface.
4. Using 11Y as a Cement Based Adhesive/Grout Enhancer:
- Prepare Liquid Mix: In a clean pail, combine 1 part Gripset 11Y and 3 parts clean water (by volume). Mix well.
- Mix with Powder: Refer to the manufacturer's instructions for the specific cement-based tile adhesive or grout powder regarding the required amount of liquid. Gradually add the prepared 11Y/Water Liquid Mix to the powder in place of plain water, mixing thoroughly with an electric mixer/paddle until the desired lump-free consistency is reached.
- Allow to Stand & Remix: Let the mix stand for the time specified by the adhesive/grout manufacturer (slaking time), then briefly remix before application.
- Apply Adhesive/Grout: Apply the enhanced adhesive or grout using standard tools and techniques according to manufacturer and Australian Standards.
Gripset 11Y limitations:
- Requires Correct Mixing: Performance depends entirely on using the correct mix ratios with quality sand and fresh cement as specified in the TDS. Do not deviate.
- Substrate Limitations: Not suitable for application onto glass or glazed surfaces. Generally not for direct application to raw steel or metals unless specified otherwise (check with RLA/Gripset).
- Rising Damp / Negative Pressure: Cannot be used as a barrier against rising damp or negative hydrostatic pressure. Substrates with these issues must be pre-treated with Gripset E60 or another suitable barrier.
- Primer Drying Time: While the primer slurry itself dries, optimal bonding of subsequent layers relies on 'wet on wet' application onto the damp slurry.
- Check Compatibility: Before applying over existing paints, membranes, or coatings, always seek technical advice from RLA/Gripset regarding preparation and suitability.
Safety precautions when using Gripset 11Y:
- Personal Protective Equipment (PPE): Wear appropriate PPE for handling cement products, including gloves (e.g., nitrile, rubber) and eye protection (safety glasses/goggles). Wear a dust mask (P1/P2) when handling dry cement and sand powders.
- Handling: Gripset 11Y liquid is water-based and low odour. Avoid ingestion and prolonged skin contact. Refer to SDS for specifics.
- Mixing: Mix in well-ventilated areas, especially when handling dry cement powders.
- First Aid: For detailed first aid measures related to the liquid or the mixed cementitious compounds, consult the Gripset 11Y Safety Data Sheet (SDS) and the SDS for the cement being used.
- Clean-up: Clean tools and spills immediately with water before the product dries. Dried material requires mechanical removal.
- Disposal: Dispose of unused liquid and cured waste according to local council regulations. Do not empty liquid into drains.
Gripset 11Y enhanced mixes or primer slurry can be applied onto the following substrates:
- Concrete: New (fully cured) and existing concrete surfaces, blocks, and aerated concrete. Ensure proper surface preparation.
- Masonry: Clay bricks, pavers, concrete blocks, sound existing renders and screeds. Must be clean, sound, and stable.
- Cement Sheeting: Compressed Fibre Cement (CFC) sheets and other compatible cement-based boards used in construction.
- Timber Sheeting: Suitable for Marine Plywood and Wet Area Particle Board specified for construction use. Ensure sheets are rigid and properly fixed.
- Bituminous Surfaces: Stable, well-cured Asphalt and Bitumen surfaces (e.g., prior asphaltic membranes). Test adhesion in a small area first.
- Existing Coatings: Sound, compatible existing acrylic coatings and Gripset membranes. *Crucial: Contact RLA/Gripset technical department for specific advice on preparation and suitability before proceeding over existing finishes.*
- Note: All substrates must be clean, sound, dry (unless pre-dampening specified), and free from contaminants. Substrates with active moisture/rising damp require pre-treatment with Gripset E60.
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