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Gripset C-1P 1 Part Flexible Cementitious Membrane

Gripset C-1P 1 Part Flexible Cementitious Membrane

Gripset C-1P is a high-performance, fibre-reinforced cementitious waterproof membrane. With excellent crack-bridging properties and resistance to hydrostatic pressure, it is ideal for underground structures, water features, and wet areas. This versatile, UV-resistant membrane is suitable for both positive and negative waterproofing applications, ensuring long-lasting protection in continuously wet environments. Designed for easy on-site mixing with water, it adheres well to concrete, masonry, and fibre cement sheeting, making it a top choice for professionals.
Vendor: Gripset
SKU: GRIPC1P/15
Availability: In Stock
$129.33
$129.33
Prices do not include GST

Physical Properties

Chemical properties: Fibre-reinforced cementitious waterproof membrane
Colour: Wet: dark grey, dry: dark brown
Elongation: 37%
Tensile strength: >2 mpa
Water vapour transmission: 0.7 g/m²/24 hours
Water absorption: 9%
Crack bridging: ≥0.75mm
Positive hydrostatic pressure resistance: 5 bar
Negative hydrostatic pressure resistance: 1.5 bar
Application temperature: 5°c to 35°c
Service temperature: -20°c to +70°c
Coverage rate: 5.5m² per 15kg bag (trowel), 7m² per 15kg bag (roller)
Storage temperature: 5°c to 25°c
Shelf life: 12 months
Standards compliance: As 4020, as 4858
Uv resistance: Yes

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Shipping & Delivery

$15.95 + GST for Australia-wide shipping, excluding DG, oversized, long-length, and bagged items over 15kg. Rural, remote areas and site deliveries are also ineligible. If your order includes any of these, we will contact you to arrange additional freight fees. Online purchases only.

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Gripset C-1P 1 Part Flexible Cementitious Membrane
Gripset
Gripset C-1P 1 Part Flexible Cementitious Membrane
$129.33
Gripset C-1P 1 Part Flexible Cementitious Membrane
Gripset
Gripset C-1P 1 Part Flexible Cementitious Membrane
$129.33
Description  
Use Gripset C-1P for: Waterproofing basements, retaining walls, lift pits, water tanks, pools, and under-tile areas.

Gripset C-1P is a one-component, fibre-reinforced flexible cementitious waterproof membrane designed for durability and versatility. Suitable for both positive and negative waterproofing applications, it provides excellent adhesion, high crack-bridging capabilities, and resistance to hydrostatic pressure. This non-toxic, solvent-free membrane is ideal for underground structures, immersed environments, and wet areas such as bathrooms and tiled surfaces.

Key Features of Gripset C-1P

  • Withstands 5 bar positive and 1.5 bar negative hydrostatic pressure
  • Flexible and crack-bridging capabilities
  • Waterproof and suitable for continuously wet environments
  • UV-resistant for exposed applications
  • Easy application by brush, roller, trowel, or spray
  • Compatible with concrete, masonry, and tile finishes
  • Potable water approved (AS 4020)
  • Non-toxic, water-based, and solvent-free
  • Compliant with AS 4858 for internal wet areas

Technical Overview

  • Chemical Properties: Fibre-reinforced cementitious waterproof membrane
  • Application Temperature Range: 5°C to 35°C

Trade Professional Information

  • Required Tools: Brush, roller, trowel, or spray equipment
  • Trade-Specific Tips: Pre-dampen porous surfaces before application for optimal adhesion
  • Common Issues and Solutions: Ensure even coverage to achieve the required film thickness for waterproofing effectiveness

Storage and Shelf Life

  • Store in a cool, dry place
  • 12-month shelf life in unopened packaging
  • Avoid freezing and direct sunlight

Certifications

  • AS 4020: Potable water approved
  • AS 4858: Compliant for internal wet areas
Common Questions  

Frequently Asked Questions About Gripset C-1P

Q: What is Gripset C-1P used for?

A: Gripset C-1P is a one-component, fibre-reinforced flexible cementitious waterproof membrane designed for both positive and negative waterproofing applications, including basements, retaining walls, water tanks, and wet areas.

Q: Can Gripset C-1P be used for submerged applications?

A: Yes, it is waterproof and suitable for continuously wet and immersed environments such as swimming pools and water features.

Q: What surfaces can Gripset C-1P be applied to?

A: It can be applied to concrete, masonry, compressed fibre cement sheeting, aerated concrete panels, and plasterboard.

Q: How is Gripset C-1P applied?

A: It can be applied using a trowel, roller, brush, or spray unit. A minimum of two coats is required for optimal performance.

Q: Does Gripset C-1P require a primer?

A: Yes, for porous surfaces, pre-dampening with water is required. Non-porous surfaces should be primed with Gripset OP Primer.

Uses & Benefits  

Use Gripset C-1P for:

  • Basement walls (internal and external)
  • Lift pits and retaining walls
  • Planter boxes and earth shelters
  • Slab edges and landscaped areas
  • Feature walls, water features, and swimming pools
  • Potable water tanks and storage facilities
  • Waterproofing over brick, masonry, and mortars
  • Under-tile waterproofing in wet areas

Why Use Gripset C-1P?

  • Strong adhesion to multiple substrates
  • Durable and flexible waterproofing protection
  • Environmentally friendly, solvent-free formulation
  • Complies with Australian waterproofing standards
How To Apply  

How to Apply Gripset C-1P:

  1. Ensure surfaces are clean, dry, and free from contaminants.
  2. Pre-dampen porous surfaces or prime as required.
  3. Mix Gripset C-1P with clean water according to application method.
  4. Apply using a brush, roller, trowel, or spray.
  5. Ensure a minimum of 2 coats are applied for effective waterproofing.
  6. Allow each coat to dry before applying the next.
  7. For tiling, use a polymer-modified cement-based adhesive.
Limitations and Safety Info  

Gripset C-1P Limitations:

  • Not suitable for exposed swimming pool surfaces (must be tiled over)
  • Do not apply in temperatures below 5°C or above 35°C
  • Must not be applied over standing water
  • Ensure adequate drying time before immersion or exposure to water

Safety precautions when using Gripset C-1P:

  • Personal Protective Equipment: Wear gloves, safety glasses, and protective clothing when handling.
  • Ventilation: Ensure adequate airflow in enclosed spaces to prevent dust inhalation.
  • Handling: Avoid direct contact with skin and eyes. If contact occurs, rinse thoroughly with clean water.
  • Clean-up: Wash tools with water before the product dries. Once dried, removal must be done mechanically.
  • Storage: Store in a dry, cool place at room temperature, away from direct sunlight and moisture.
  • Disposal: Dispose of unused material and packaging according to local environmental regulations.
Suitable Substrates  

Gripset C-1P can be used on the following substrates:

  • Concrete, render, and masonry
  • Compressed fibre cement sheeting
  • Plasterboard and aerated concrete panels

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