Description:

Exterior wall External Thermal insulation finishing system (EIFS), also known as exterior wall external thermal insulation composite system (ETICS), is composed of polymer mortar, glass fiber mesh cloth, exterior wall flame retardant insulation board or fire insulation board, etc., is a multi-layer cladding system that provides thermal insulation and waterproof surface for exterior walls to improve the thermal insulation effect of buildings.

The role of HPMC, HEMC, HEC and RDP in EIFS/ETICS:

Role of cellulose ether (HPMC, HEMC, HEC) in EIFS/ETICS:

1. Adhesive and mortar thickening:

Cellulose ether is commonly used as a thickening agent for adhesives and mortars within EIFS/ETICS. They help control the rheology and consistency of the adhesive or mortar, ensuring that the insulation is applied correctly and adheres to the building substrate.

2. Can improve plasticity and ductility:

Cellulose ether can enhance the workability of EIFS/ETICS mortar. This is important for the applicator to apply the insulation to the facade of the building smoothly and evenly.

3. Water retention:

It can effectively slow down the evaporation rate of water in the mortar, prevent premature drying, and is conducive to the full bonding between the mortar and the base.

4. It can improve the crack resistance of the mortar: reduce the cracks caused by temperature changes and base deformation.

5. Improve constructability: Easily applied to EIFS adhesives, easy operation and construction, can significantly improve construction efficiency.

6. Compatibility with insulation materials:

Cellulose ethers are generally compatible with a variety of insulating materials, including expanded polystyrene (EPS) or mineral wool. This versatility makes them suitable for EIFS/ETICS formulations with different insulation types.

The role of redispersible Emulsion Powder (RDP) in EIFS/ETICS:

1. Improve the flexibility and adhesion of the finish, and provide a durable and weather-resistant exterior finish.

2. Enhance the cohesion of the mortar and the binding force of the insulation board, for you to seek insulation while reducing energy consumption. The external insulation mortar products achieve the necessary workability, flexural strength and flexibility, which can make your mortar products have good bonding properties with a series of insulation materials and the base. At the same time, it also helps to improve the impact resistance and surface cracking resistance.

HPMC, HEMC, HEC and RDP are among the largest application areas for dry mortar, and we have developed products of different grades and properties to meet all customer needs. We can also offer custom formulations that can provide you with the most suitable raw materials and products for your specific local requirements.