Fired Earth Plaster Bond and Key Clear 20 L – Alkali and Water Resistant

Fired Earth Plaster Bond and Key Clear 20 L – Alkali and Water Resistant

R 899.00

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13 Sep 2026
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Description

Achieving a professional, durable plaster finish starts long before you mix the cement. You need a reliable, high-performance bonding solution that guarantees adhesion and durability, especially in challenging environments.

The Fired Earth Plaster Bond and Key Clear is the essential foundation for flawless internal and external plastering jobs. This clear, 20-litre bonding agent is expertly formulated to be both Alkali and Water Resistant, ensuring your plaster is protected against moisture and substrate reactivity. It acts as a powerful keying agent for both cement and gypsum plaster, providing an exceptional grip on smooth, non-porous, or challenging surfaces. With a generous 5-year guarantee, this professional-grade product gives you peace of mind that your work will stand the test of time, delivering the perfect, resilient substrate every time.

 

Key Features

  • Alkali and Water Resistant: Provides excellent protection against moisture ingress and chemical reactions from alkaline substrates.

  • Keying Agent: Creates a superior mechanical key/bond between difficult surfaces and new plaster (both cement and gypsum).

  • Clear Finish: The product dries clear, ensuring no colour transfer or staining of the substrate.

  • Large 20 Litre Size: Ideal for substantial professional or home renovation projects.

  • 5-Year Guarantee: Backed by the Fired Earth brand for long-term confidence in its performance.

  • Product Code: 6002976003256 (Barcode).

 

Ideal For

  • Smooth Surfaces: Bonding plaster to very smooth or non-porous concrete, paint, or brickwork.

  • Internal and External Use: Suitable for both interior wall preparation and exterior rendering applications.

  • Professional Contractors: The 20L size and high-performance formula meet the demands of large-scale projects.

  • Damp/Alkaline Environments: Essential for areas where moisture resistance and protection against alkalinity are crucial.

 

Why You Will Love It

You will love the absolute assurance of adhesion it provides. No more worrying about plaster de-laminating or cracking due to a poor bond. The product simplifies the preparation process, saving you time and money by ensuring you only plaster once, while its alkali and water resistance adds a critical layer of durability and longevity to your finished walls.

 

What's in the Box

  • 1 x Fired Earth Plaster Bond and Key Clear 20 L (Alkali and Water Resistant)

 

Top 3 Frequently Asked Questions

1. What is the coverage rate for the 20L container? While exact coverage depends on the porosity of the surface, a 20L container typically offers extensive coverage. Always follow the official manufacturer's instructions for mixing and application to determine precise coverage for your specific substrate.

2. Can this product be used with both gypsum and cement plasters? Yes, the Fired Earth Plaster Bond and Key Clear is specifically formulated to act as an effective keying agent for both cement and gypsum-based plaster products.

3. Does this product need to be diluted before use? Bonding agents are often used neat, but the requirements can vary based on the substrate and the manufacturer's directions. Always refer to the instructions on the back of the can or the Fired Earth technical data sheet to ensure correct application and optimal performance.

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