English
English
Views: 0 Author: Site Editor Publish Time: 2025-05-22 Origin: Site
As energy-efficient building solutions gain momentum, External Thermal Insulation Composite Systems (ETICS) have become a vital component in modern construction. These systems demand high-performance materials that ensure mechanical strength, adhesion, and thermal protection. Hydroxypropyl Methyl Cellulose (HPMC) plays a critical role in improving the performance of ETICS adhesives and base coats. At Zongsheng, we provide HPMC solutions engineered specifically for use in ETICS applications.
ETICS, or External Thermal Insulation Composite Systems, involve fixing insulation boards to exterior walls and covering them with a reinforced base coat and decorative finish. These systems are designed to enhance thermal efficiency, reduce energy consumption, and protect building exteriors.
To ensure ETICS perform reliably under various conditions, drymix mortars and adhesives used in their installation must deliver strong adhesion, flexibility, and weather resistance. This is where HPMC becomes indispensable.
Hydroxypropyl Methyl Cellulose is used as a performance additive in both adhesive mortars and reinforcing layers within ETICS. It improves the working characteristics of these materials and contributes to long-term durability.
HPMC helps retain moisture in the mortar for a longer period, allowing for proper cement hydration. This leads to stronger bonding between the insulation panels and the substrate, especially on vertical surfaces.
In ETICS installation, open time is essential to allow workers to adjust insulation panels after applying adhesive. HPMC extends this open time, offering greater flexibility during application.
HPMC improves the rheological properties of ETICS mortars, making them easier to mix, apply, and spread uniformly. This ensures a smoother installation process and more even coverage of adhesive and base coats.
Thanks to its thickening properties, HPMC minimizes sagging or sliding of insulation boards after placement. This feature is particularly important for vertical applications, where stability is crucial.
In reinforcing layers, HPMC contributes to flexibility and cohesion, reducing the risk of surface cracks. The result is a smooth, durable finish that supports the protective function of the ETICS.
Zongsheng’s HPMC is formulated for high performance across all stages of ETICS installation:
Adhesive Mortars: Enhances bond strength and application comfort
Reinforcing Base Coats: Provides crack resistance and good workability
Finish Layers: Improves texture, spreadability, and final surface quality
We produce construction-grade HPMC with properties tailored for ETICS use:
High water retention and extended open time
Excellent viscosity stability
Good dispersion in drymix formulations
Customized grades for climate-specific requirements
Compatibility with cement, lime, and other mineral binders
Choosing the optimal HPMC grade depends on application type, weather conditions, and required working time. Zongsheng offers guidance in selecting the right product based on:
Panel type (EPS, XPS, mineral wool)
Site conditions (temperature, humidity)
Application method (manual or machine spray)
Desired open time and set time
Our technical support team works closely with clients to optimize performance and support product development.
Zongsheng is a trusted manufacturer of high-quality Hydroxypropyl Methyl Cellulose for the construction industry. Our cellulose ethers are designed to meet the specific needs of ETICS producers and contractors.
We offer:
Consistent product quality
Responsive technical support
Tailor-made HPMC grades for your production line
Reliable supply and timely delivery
