Trade quote
Tell us what you need and we'll come back with a quote.
Share your quantity and project details for a tailored quote.
Grouting demands precision. Shrinkage or settlement compromises the strongest work, leading to costly callbacks and compromised integrity. RLA Penaflow Panel Grout delivers a non-shrink, Class A solution that actively controls expansion in its plastic state. This ensures a complete, void-free fill, from underpinning to precise panel placements, right from the first application.
RLA Penaflow Panel Grout was engineered as a versatile, cementitious grout to address the critical need for a stable, non-shrinking fill in construction. It leverages a blend of Portland cement, high-quality graded aggregates, and specific additives. This formulation generates a controlled gaseous expansion while the grout is still plastic, effectively eliminating shrinkage and settlement as it cures. Its non-metallic iron content prevents staining, a common issue with traditional grouts, maintaining the aesthetic integrity of surrounding materials.
Preparing the substrate is key: saturate all areas with water for at least 4 hours before application, then remove all standing water. This pre-soaking prevents the substrate from drawing moisture from the grout, which can compromise strength. Mix RLA Penaflow Panel Grout using a mechanical mixer — an electric drill with a spiral paddle for smaller batches, or a forced-action drum mixer for larger volumes. Accurate water measurement is critical; precise ratios deliver dry pack, trowellable, or flowable consistencies. Never mix by hand or add additional water beyond specified amounts, as this will lead to segregation and bleeding. For large pours, use a positive displacement pump, ensuring continuous placement to avoid air entrapment.
RLA Penaflow Panel Grout commonly serves as a final, critical step in concrete repair systems. For instance, after initial heavy-duty epoxy repairs, such as those performed with Megapoxy H, this grout is applied to achieve the final, load-bearing fill. Its role as a non-shrink filler ensures that the repair sequence culminates in a stable, integrated structure, providing the necessary support before subsequent layers, like membranes or tiles, are installed.
RLA Penaflow Panel Grout is shrinkage compensated, providing 1-2% gaseous expansion while in a plastic state. Accurate water measurement is critical; follow the specified water ratios for your desired consistency to ensure proper expansion and prevent segregation.
This grout is suitable for filling gaps from 20mm to 150mm in a single application. For fluid flowable consistency, it can achieve flow distances of up to 3.5 meters in a 100mm deep gap with a 250mm grout head.
Yes, all prepared areas must be saturated with water for 4 hours to reduce substrate porosity. Ensure all excess water is removed before grouting, as applying to a dry porous surface can compromise adhesion and strength.
RLA Penaflow Panel Grout achieves high early and ultimate compressive strengths. It reaches over 40 MPa at 7 days and more than 55 MPa at 28 days when tested at 20°C, ensuring robust structural support.
| Application | Key benefit | Primary trades |
|---|---|---|
| Grouting under precast panels | Gaseous expansion in plastic state ensures full contact and load transfer, eliminating voids and preventing settlement. Non-metallic content avoids staining. | Precast installers, Concreters, Civil contractors |
| Filling anchor bolt holes | High compressive strength (>55 MPa at 28 days) and >10 MPa bond strength provide secure, non-shrink anchorage for structural elements. | Structural engineers, Steel fixers, Concreters |
| Filling core holes and cavities | Achieves 0% bleed and consistent void filling for depths 20-150mm. Can be poured or pumped for efficient placement. | Concreters, Repair contractors, Builders |
| Underpinning operations | Provides reliable, high-strength support with controlled expansion, crucial for stabilising existing structures. | Underpinning specialists, Structural engineers |
Clean substrate, pre-soak for 4 h, and remove free water. Construct leakproof formwork using foam strips or polyurethane/silicone sealant. Provide vent/bleed holes for confined base plate grouting:contentReference[oaicite:4]{index=4}.
Add grout powder to pre-measured clean water. Mix mechanically (3–5 min) until homogeneous. Do not mix by hand. • Dry pack: 2.7–2.9 L water • Trowellable: 3.0–3.4 L • Flowable: 3.6–4.0 L:contentReference[oaicite:5]{index=5}.
Options: • Dry pack: tamp into position with rods. • Gravity flow: pour from one side using header box, maintaining grout head. • Pumping: use positive displacement pump, pumping bottom-up to avoid voids:contentReference[oaicite:6]{index=6}.
Immediately protect exposed grout. Cover with wet hessian, plastic, or curing compounds (e.g., Curecon). Proper curing is critical to achieve designed strength:contentReference[oaicite:7]{index=7}.
Causes skin irritation. May cause an allergic skin reaction. Causes serious eye damage. May cause respiratory irritation. May cause cancer. May cause damage to organs through prolonged or repeated exposure.
Wear safety glasses, chemical goggles, or a full face shield. Use elbow length PVC or neoprene rubber gloves. Wear overalls and a PVC apron. Apply barrier and skin cleansing creams. In dusty environments, use approved particulate respirators (P1, P2, or P3, depending on exposure levels).
Use only outdoors or in well-ventilated areas. Avoid breathing dust and ensure process controls or local exhaust ventilation are in place to prevent concentration in hollows and sumps.
Store in original, securely sealed containers in a cool, dry area, protected from environmental extremes. Keep away from strong acids, acid chlorides, acid anhydrides, chloroformates, copper, aluminium, and their alloys. Dispose of contents and containers at an authorised hazardous or special waste collection point in accordance with local regulations.
Proper substrate preparation is essential for RLA Penaflow Panel Grout to achieve optimal bond strength and prevent failures.
Surface prep: Substrate must be clean, sound, and free from dust, oil, grease, curing compounds, or any contaminants that affect adhesion. Bolt holes and anchor points must be clean and dry. All areas to be grouted require saturation with water for 4 hours prior to application to reduce porosity. Before grouting, remove all excess water, ensuring no puddles remain.
Primer: Not required for adequately prepared and pre-soaked concrete or precast panels.
Surface prep: Ensure block work is clean, sound, and free of loose material, dust, and any residues. As with concrete, pre-soak the area for 4 hours and remove all standing water before grouting to ensure proper hydration and bond.
Primer: Not required for properly prepared and pre-soaked block work.
| Property | Value |
|---|---|
| Colour | Grey |
| Shelf Life | Nine months |
| Packaging | 20kg Poly-lined Bags |
| Application Temperature | Min 10ºC - Max 30ºC |
| Coverage (kg/m²/mm) | 2.0 |
| Expansion Characteristics | 1-2% Plastic State |
| Time for Expansion Start (Plastic State) | 15 mins |
| Time for Expansion Finish (Plastic State) | 3 hours |
| Bleed | 0% |
| Youngs Modulus | 25 GPa |
| Fresh Density Dry Pack | 2250 kg/m³ |
| Fresh Density Trowellable | 2220 kg/m³ |
| Fresh Density Flowable | 2190 kg/m³ |
| Yield per 20kg Bag Dry Pack | 10.3 Litres |
| Yield per 20kg Bag Trowellable | 10.6 Litres |
| Yield per 20kg Bag Flowable | 11.0 Litres |
| Number of Bags per m³ Dry Pack | 97 |
| Number of Bags per m³ Trowellable | 94 |
| Number of Bags per m³ Flowable | 91 |
| Initial Set Time (Dry Pack @ 20°C) | 1.5 hours |
| Initial Set Time (Trowellable @ 20°C) | 3 hours |
| Initial Set Time (Flowable @ 20°C) | 4.5 hours |
| Final Set Time (Dry Pack @ 20°C) | 2.5 hours |
| Final Set Time (Trowellable @ 20°C) | 4.5 hours |
| Final Set Time (Flowable @ 20°C) | 6.5 hours |
| Compressive Strength 1 Day | >20 MPa |
| Compressive Strength 3 Days | >30 MPa |
| Compressive Strength 7 Days | >40 MPa |
| Compressive Strength 28 Days | >55 MPa |
| Flexural Strength 1 Day | >1.5 MPa |
| Flexural Strength 3 Days | >3.5 MPa |
| Flexural Strength 7 Days | >8.5 MPa |
| Flexural Strength 28 Days | >9.5 MPa |
| Bond Strength 7 Days (ASTM C882-1987) | >5 MPa |
| Bond Strength 28 Days (ASTM C882-1987) | >10 MPa |
Here are some common examples on where RLA Penaflow Panel Grout used by our customers.
