Gripset 2P: A Technical Overview
Gripset 2P is a robust, two-component cementitious membrane engineered for high-demand waterproofing where durability and adhesion are critical. Classified as a Class II membrane, it remains flexible to accommodate normal substrate movement, cures quickly in cool/humid conditions, and withstands continuous immersion. It’s compatible with polymer-modified tile adhesives and can be overlaid with renders and screeds, streamlining sequencing on site. AS4858 and AS4654.1 compliance ensures wet-area and external performance, while AS/NZS 4020 certification supports use in potable water storage.
Core Features & Specifications
- Two-component, water-based system — solvent free, non-toxic and non-flammable.
- Class II flexibility (>200% elongation) to bridge normal substrate movement.
- Suitable for immersed and permanently wet environments (pools, water features, tanks).
- Fast recoat (2–4 h) and 24 h to tile — ideal in cool or humid climates.
- Tile-ready surface; excellent adhesion to cementitious overlays and adhesives.
- AS4858 & AS4654.1 compliant; AS/NZS 4020 certified for potable water.
The Gripset 2P Advantage
- Reliability in critical works — from balconies and retaining walls to planters and pools.
- Predictable film builds: 2 coats at 1.5 L/m² total to achieve ~1.2 mm DFT.
- System-ready with Gripset primers and Elastoproof detailing for junctions and penetrations.
- Non-sag on verticals with a tough, durable finish to resist site abuse before tiling.
Proactive Troubleshooting
Scenario: Using pressure-sensitive tapes in immersed zones
Potential Outcome: Edge lift and leakage under hydrostatic pressure.
Adheseal Best Practice: In immersed applications, use Elastoproof B50 Joint Band and collars; avoid BRW PF Tape where immersion is expected.
Scenario: Incorrect mixing sequence
Potential Outcome: Lumps, weak film and pinholing.
Adheseal Best Practice: Always add powder to liquid under mechanical mixing, allow 3–5 minutes to settle, then re-stir to a homogenous blend.
Scenario: Under-thickness application on porous substrates
Potential Outcome: Incomplete waterproofing and premature failure.
Adheseal Best Practice: Prime correctly, then apply 2 coats at 1.5 L/m² total and verify with a wet-film gauge (≈750 µm per coat).
Applications in Practice: Trade Scenarios
For Waterproofers (Specifier/Engineer): Swimming Pools & Water Features
The Professional's Challenge
Immersed structures demand a dense, flexible membrane with verified potable-water safety and long-term adhesion.
The Adheseal Solution: Engineered Certainty in Practice
Gripset 2P’s Class II flexibility, fast cure and AS/NZS 4020 certification make it ideal. Apply 2 coats at 1.5 L/m² total; allow 7 days before immersion; tile after 24 h using polymer-modified adhesive.
Best Practice Note
Detail all junctions and penetrations with Elastoproof B50 and collars prior to coating. Verify final DFT before filling.
For Builders (Business Owner/Operator): Planter Boxes & Retaining Walls
The Professional's Challenge
Subterranean and soil-retaining structures require a tough, flexible membrane to resist damp loads and micro-movement.
The Adheseal Solution: Engineered Certainty in Practice
Prime appropriately, apply 2 coats of Gripset 2P (≈1.2 mm DFT), protect with appropriate drainage/board before backfill to preserve membrane integrity.
Best Practice Note
Avoid application when rain is imminent; maintain surface/ambient temps between 5–30°C for consistent curing.
Frequently Asked Questions
Is Gripset 2P suitable for fully immersed applications like pools?
Yes. Gripset 2P is designed for continuously wet and immersed environments. Allow 7 days curing before immersion.
What is the recommended film build and coverage?
Apply 2 coats at a total of 1.5 L/m² to achieve approximately 1.2 mm dry film thickness (≈750 µm WFT per coat).
How soon can I tile over Gripset 2P?
After 24 hours under normal conditions. Use polymer-modified cement-based adhesives.
What primers should I use on different substrates?
Use Gripset GP Primer for porous, OP Primer for non-porous, XPRESS Primer H2O Plus for green/damp surfaces, and Gripset E60 for residual moisture/rising damp.
Can I use BRW PF Tape in pools?
No. Use Elastoproof B50 Joint Band and collars in immersed applications; BRW PF Tape is not suitable for immersion.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Swimming pools & water features | Immersion-rated membrane with potable-water certification | Waterproofers, Pool Builders |
| Balconies, decks & podiums | Flexible Class II membrane for external movement & weather | Waterproofers, Builders |
| Planter boxes & retaining walls | Durable film resists damp loading; compatible with protection boards | Builders, Remedial Contractors |
| Under-tile wet areas | Tile-ready surface; 24 h to tile with polymer-modified adhesives | Tilers, Waterproofers |
Applying Gripset 2P: Enhanced Protocols & Best Practices
-
Surface Preparation & Priming
Clean, sound and dry substrate; repair defects. Prime to suit: GP (porous), OP (non-porous), XPRESS H2O Plus (green/damp), E60 (residual moisture/rising damp).
Pro Tip: Detail all junctions/penetrations before coating using Elastoproof B50 and collars. Avoid BRW PF Tape in immersed zones. -
Mixing
Add powder to liquid (1:1 by volume for partial mixes). Mechanically mix to a lump-free, homogenous blend. Rest 3–5 minutes; re-stir before use.
Timing: Pot life ≈ 1 hour at 23°C. -
Membrane Application
Apply by brush/roller/spray in 2 coats at 1.5 L/m² total, perpendicular directions. Verify with wet film gauge (~750 µm per coat) to achieve ~1.2 mm DFT.
Timing: Recoat 2–4 h; tile after 24 h; flood test after 72 h; 7 days before immersion.
Limitations & Safety
Product Limitations
Not a trafficable finish; protect before service or backfill.
Do not apply when rain is imminent or outside 5–30°C surface/ambient.
Not for negative hydrostatic pressure.
All finish coatings over 2P must be water-based/solvent-free.
Safety & Handling Requirements
Personal Protective Equipment
Wear gloves, eye protection and suitable workwear. Avoid skin/eye contact.
Ventilation Requirements
Use in well-ventilated areas; avoid aerosolising dust when handling powder.
Emergency First Aid
Eyes:
Rinse cautiously with water for several minutes; remove lenses if easy.
Skin:
Wash with soap and water.
Inhaled:
Move to fresh air; seek advice if symptoms persist.
Swallowed:
Rinse mouth; do not induce vomiting.
Seek medical attention for serious exposure.
Gripset 2P Application Guide
Concrete, Render & Masonry
Surface Preparation
Cure concrete 28 days; ensure surfaces are clean, smooth and free of contaminants. Fill voids and non-structural cracks; remove unsound layers mechanically.
Primer Requirements
Primer required for optimal adhesion
GP Primer (porous, 1 L/8–10 m²) or E60 for residual moisture/rising damp; XPRESS H2O Plus for green/damp surfaces.
Gripset GP Primer / E60 / XPRESS H2O PlusFibre Cement Sheeting & Plasterboard
Surface Preparation
Install to manufacturer requirements; make joints flush; remove dust and debris before priming.
Primer Requirements
Primer required
Prime with GP Primer; use OP Primer where non-absorbent linings are present.
Gripset GP Primer / OP PrimerAerated Concrete Panels & Blocks
Surface Preparation
Point flush and stabilise highly porous surfaces; remove dust; level undulations before coating.
Primer Requirements
Primer required
Apply GP Primer (often 2 coats on very porous substrates) before Gripset 2P.
Gripset GP Primer
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