Defoamer for Mortar and Gypsum: Achieve Smoother, Denser Finishes

Oct. 10,2025

Introduction

In mortar, gypsum, and self-leveling materials, air bubbles can cause uneven surfaces, reduced density, and lower strength.

Sunbo Defoamer is specially developed to eliminate foam quickly and prevent its reformation — ensuring smoother finishes, higher strength, and improved durability for dry-mix and gypsum-based systems.

With advanced formulation and years of expertise in construction chemicals, Sunbo provides efficient anti-foaming solutions that enhance both appearance and performance in modern building materials.

What Is a Defoamer?

A Defoamer, or anti-foaming agent, is a chemical additive used to remove or suppress foam in liquid or semi-liquid systems.

During the mixing of mortar or gypsum, surfactants and mechanical agitation can cause excessive foam.

Sunbo Defoamer quickly breaks down these air bubbles, ensuring smooth mixing and consistent surface results.

Key Benefits of Sunbo Defoamer

1. Quick Foam Elimination

Rapidly removes surface and internal bubbles to improve flow and smoothness.

2. Long-Lasting Anti-Foaming Effect

Prevents foam from reappearing during mixing, pumping, and application.

3. Enhanced Density and Surface Quality

Produces denser, stronger materials with fewer surface defects or pinholes.

4. Excellent Compatibility

Works well with polymer binders, thickeners, stabilizers, and other construction additives.

5. Eco-Friendly and Safe

Low VOC, non-toxic, and compliant with sustainable building standards.

Applications

Sunbo Defoamer is ideal for:

Drymix mortar and tile adhesive

Self-leveling flooring compounds

Gypsum plaster and putty

Cementitious waterproof coatings

Decorative wall coatings and finishing products

No matter your formulation, Sunbo Defoamer ensures smooth surfaces, stable performance, and higher production efficiency.

Why Choose Sunbo?

As a professional manufacturer of construction chemical additives, Sunbo integrates innovation, automation, and quality control to deliver consistent results.

We provide both liquid and powder defoamers suitable for a wide range of dry-mix and gypsum systems.

Frequently Asked Questions (FAQ)

Q1: How much Defoamer should be added to mortar or gypsum?

A: Typically 0.05%–0.3% of the total binder weight, depending on formulation and foam level.

Q2: Is Sunbo Defoamer suitable for dry-mix systems?

A: Yes, we provide powder-type defoamers for dry-mix applications and liquid types for wet formulations.

Q3: Does Defoamer affect workability?

A: No. When used properly, it improves flow and finish quality without negative impact on strength.

Conclusion

Foam can compromise appearance and performance in mortar and gypsum products.

Sunbo Defoamer provides a balanced solution of rapid defoaming, long-term stability, and excellent compatibility — helping you achieve smoother, stronger, and more reliable results.

Contact Sunbo today for free samples and professional technical support.

Defoamer for Mortar and Gypsum: Achieve Smoother, Denser Finishes

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