Anhydrite vs. Cement-Based Screed: Which is Right for Your Project?

Anhydrite vs. Cement-Based Screed: Which is Right for Your Project?

January 29, 20252 min read

Introduction

When it comes to flooring projects, selecting the right screed is crucial to achieving a durable, level, and high-quality finish. Two of the most common types of screed are anhydrite screed and cement-based screed. Each has distinct properties, advantages, and best-use scenarios. In this post, we’ll compare these two options to help you make an informed choice for your project.

Anhydrite Screed: Features & Benefits

Composition: Anhydrite screed is made from calcium sulfate, a byproduct of industrial processes, making it an eco-friendly choice.

Advantages:

  • Self-Leveling: Flows easily, creating a perfectly level surface with minimal effort.

  • Minimal Shrinkage: Reduces the risk of cracks and surface imperfections.

  • Ideal for Underfloor Heating: Excellent thermal conductivity ensures efficient heat distribution.

  • Larger Application Areas: Can be poured in large sections without requiring joints.

  • Eco-Friendly: Often made from recycled materials, reducing environmental impact.

Best Applications:

  • Residential and commercial flooring projects requiring a smooth finish.

  • Areas with underfloor heating systems.

  • Large open spaces where minimal joints are preferred.

Cement-Based Screed: Features & Benefits

Composition: Made from a mixture of cement, sand, and water, this traditional screed type is highly durable.

Advantages:

  • High Strength & Durability: Suitable for areas with heavy foot traffic.

  • Moisture Resistant: Can withstand damp conditions, making it ideal for wet areas like bathrooms and kitchens.

  • Fast Setting: Some formulations allow for quicker drying times.

  • Versatile Applications: Compatible with various floor finishes, including tiles, vinyl, and wood.

Best Applications:

  • Commercial and industrial settings where durability is essential.

  • Areas exposed to high moisture levels.

  • Projects requiring a rapid turnaround time.

Conclusion

Choosing between anhydrite and cement-based screed depends on your project’s specific needs. If you require a smooth, self-leveling surface and underfloor heating compatibility, anhydrite screed is ideal. However, if you need high durability and moisture resistance, cement-based screed is the better choice. For expert guidance on selecting the right screed, get in touch with Surrey Flow Screed today.

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