Use Gripset C-Bed for: Forming bonded/unbonded screeds over internal and external surfaces including balconies, wet areas, and trafficable tiled areas.

Gripset C-Bed: A Technical Overview

Gripset C-Bed is a high-performance, polymer-modified mortar screed specifically formulated for use under tile and stone finishes. With excellent workability, high early strength gain, and flexible curing properties, it is suitable for both bonded and unbonded applications over a variety of substrates. It is ideal for use over waterproofing membranes or where a moisture-tolerant base is required. Trafficable within 24 hours, C-Bed provides a reliable and compatible screed system for fast-turnaround tiling installations.

Core Features & Specifications

  • Polymer-modified cementitious screed for high adhesion and flexibility
  • Trafficable in 24 hours under normal conditions
  • Shrinkage-compensated – reduces cracking in thick screed beds
  • Compatible with waterproofing membranes and adhesives
  • Suitable for both bonded and unbonded applications
  • Ideal for bathrooms, balconies, rooftop decks, and external tiled areas
  • Extended pot life allows larger area installation without rapid setup
  • Pre-blended – just add water on site

The Gripset C-Bed Advantage

  • Reduces shrinkage-related failures under tiles and stone
  • No need for site-added polymers or additives
  • Formulated for Australian conditions – interior or exterior use
  • Compatible with Gripset waterproofing systems for full membrane integration
  • Excellent workability for screed shaping, falls to waste, or ramping

Proactive Troubleshooting

Scenario: Applying over uncured or damp substrate without primer

Potential Outcome: Reduced adhesion, efflorescence, or screed lifting.

Adheseal Best Practice: Prime with Gripset GP, E60, or OP depending on moisture levels. Ensure substrate is sound and clean before application.

Scenario: Screed applied too thick in a single pour without control joints

Potential Outcome: Cracking, hollow spots, or delamination over time.

Adheseal Best Practice: For screeds over 40mm, apply in layers or allow drying breaks. Install control joints as per standard tiling practice.

Applications in Practice: Trade Scenarios

For Tilers: Screeding over waterproofed balconies and decks

The Professional's Challenge

Traditional screeds may compromise membrane integrity or cause shrinkage cracks over large outdoor areas.

The Adheseal Solution: Engineered Certainty in Practice

Gripset C-Bed offers high bond and flexibility, reducing movement and ensuring compatibility with Gripset membranes. Perfect for creating falls to drainage.

Best Practice Note

Ensure the membrane is fully cured before application. Use bond breaker or slip sheet where movement joints are required.

For Builders: Wet area screeds prior to membrane and tiling

The Professional's Challenge

Wet areas require fall-to-waste screeds that don’t delay the program or interfere with membrane curing timelines.

The Adheseal Solution: Engineered Certainty in Practice

Gripset C-Bed enables early traffic and fast curing with a polymer-modified formulation designed for membrane compatibility.

Best Practice Note

Install membrane 24–48 hours after screed cure. Prime with Gripset GP or E60 for optimal bonding to the cured screed.