What is Bonding Mortar?
Bonding mortar, also known as polymer bonding mortar, is a factory-prepared dry powder adhesive material specially designed for building bonding engineering. It is made of high-quality Portland cement as the cementitious base material, matched with graded high-strength quartz sand as aggregate, added with imported redispersible polymer powder, water-retaining agent, anti-cracking agent, early strength agent and other high-performance functional additives, and produced through precise batching, uniform mixing and automated production process.

Unlike traditional on-site mixed cement mortar, our bonding mortar is a fully formulated finished dry powder material. There is no need for on-site batching and material matching. Only clean water needs to be added and stirred evenly according to the specified ratio to form a uniform, delicate and high-adhesion bonding slurry, which completely eliminates the quality hidden dangers caused by manual on-site mixing.
Core Product Positioning
This bonding mortar is positioned as a professional, universal, high-durability building special bonding material, focusing on solving the bonding firmness problem between different building base materials and decorative materials. It breaks the limitation of single application of traditional adhesives, realizes one-product multi-purpose, and meets the diversified bonding construction needs of global various construction scenarios, truly achieving "one mortar for multiple bonding projects".
It is not an ordinary cement mortar, nor a single-component weak adhesive, but a high-performance composite bonding material integrating cementitious strength, polymer flexibility and weather resistance, which perfectly balances construction workability, early bonding strength and long-term durability, and meets the strict engineering standards of Europe, America, Southeast Asia, Middle East and other regions.

Core Pain Points Solved by Bonding Mortar
For global construction projects, the pain points caused by inferior bonding materials are frequent and costly. Our bonding mortar is developed aiming at these industry pain points, and completely solves the following construction and engineering problems:

Low Bond Strength, Easy Hollowing & Falling Off
Traditional cement mortar has poor adhesion, and it is easy to appear hollowing, cracking and falling off when bonding insulation boards, stone, ceramic tiles and other materials, especially in outdoor environments with large temperature differences, which greatly shortens the project service life and increases the risk of later repair and safety accidents. Our bonding mortar has ultra-high tensile bonding strength, which can firmly grasp the base material and the veneer material, and there is no hollowing and falling off even after long-term wind, rain, freeze-thaw cycles.
Poor Water Retention, Fast Drying & Difficult Construction
Traditional mortar loses water quickly on porous base materials such as aerated concrete blocks and brick walls, resulting in rapid solidification of slurry, difficult scraping and coating, short operable time, and unable to meet large-area continuous construction. This bonding mortar has excellent water retention performance, keeps the slurry in a good working state for a long time, is easy to scrape and spread, reduces construction difficulty, and improves construction efficiency.


Weak Weather Resistance, Unable to Adapt to Extreme Climates
In areas with high temperature, severe cold, high humidity or frequent freeze-thaw cycles, ordinary bonding materials are prone to aging, embrittlement and strength reduction, leading to project quality damage. Our bonding mortar has excellent anti-freeze-thaw, high temperature resistance and water resistance, and can maintain stable bonding performance in various extreme climatic environments worldwide.
On-Site Mixing Unstable, Uneven Quality
Manual on-site mixing of mortar is prone to uneven material ratio, insufficient stirring, resulting in unstable product strength, local weak bonding and other quality hidden dangers. Factory pre-mixed bonding mortar realizes precise batching and uniform mixing, ensuring stable product quality in each batch and avoiding human error.


High Post-Maintenance Cost, Short Project Service Life
The frequent quality problems of bonding layer mean high maintenance costs, long maintenance period and great impact on the normal use of buildings. The long-term durability of this bonding mortar is outstanding, which greatly reduces the later maintenance frequency and cost, and extends the overall service life of the building
Core Advantages of Our Bonding Mortar
Compared with similar products on the global market, our bonding mortar has obvious competitive advantages, integrating high quality, high efficiency, cost-effectiveness and environmental protection, and is deeply recognized by global construction customers. The core advantages are as follows:

Ultra-High Bonding Strength, Firm & Durable
This product adopts imported high-performance polymer modification formula, which forms a dense and tough bonding layer between the base material and the veneer material. The tensile bonding strength is far higher than the international standard, and it has excellent positive and negative wind pressure resistance. Whether it is bonded to lightweight insulation boards, natural stone, ceramic tiles or aerated blocks, it can achieve permanent firm bonding, completely eliminating the risk of hollowing and falling off, and ensuring the structural safety and stability of the project.
Excellent Workability, Easy & Efficient Construction
The slurry has good flexibility, smooth texture, strong scraping and coating performance, long open operating time, no dry spraying, no wire drawing, and no segregation. It can adapt to manual construction and mechanical spraying construction, reducing the labor intensity of workers. Under the same construction area, the construction efficiency is 30% higher than that of traditional mortar, shortening the project construction period and saving labor costs.


Strong Weather Resistance, Adapt to Global Climates
It has excellent anti-freeze-thaw cycle performance, water resistance, alkali resistance and high temperature aging resistance. It can be used normally in high temperature areas in the Middle East and Southeast Asia, cold areas in Europe and America, and high humidity coastal areas. The product performance does not attenuate for a long time, and it is always stable and reliable, meeting the construction needs of various climatic zones around the world.
Factory Pre-Mixed Finished Product, Stable & Reliable Quality
Adopt fully automated production line, precise computer batching, strict raw material selection and finished product testing, to ensure that each batch of products has uniform composition and stable performance. No on-site batching is required, which avoids the quality fluctuation caused by manual proportioning, and the construction quality is more controllable, fully meeting the requirements of high-standard engineering projects.


Wide Applicability, One Product for Multi-Purpose
It is suitable for bonding construction of various building base materials (concrete, brick wall, aerated concrete block, lightweight partition board) and various decorative / insulation materials (extruded board, polystyrene board, rock wool board, stone, ceramic tile, cultural brick). It realizes one product for multiple purposes, reduces the types of construction materials, simplifies material management, and greatly saves material procurement costs and management costs for customers.
Green & Environmental Protection, Low Carbon & Safe
The product does not contain formaldehyde, benzene and other harmful volatile substances, low VOC content, no pollution to the environment and construction personnel, in line with international green building material standards. At the same time, the dry powder packaging is easy to transport and store, no material waste is generated during construction, and it meets the global low-carbon construction and green engineering requirements.


Low Comprehensive Cost, High Cost-Effectiveness
Although the unit price of single product is slightly higher than that of ordinary mortar, its bonding efficiency and durability are greatly improved. The amount of single construction area is less, the later maintenance cost is almost zero, the construction period is shortened, and the labor cost is saved. The overall comprehensive construction cost is reduced by more than 20% compared with traditional materials, bringing real cost reduction and efficiency increase benefits to global customers.
Main Feature
Different base walls and insulation boards such as polystyrene board have strong bonding effects.
● And it has good water resistance, freeze-thaw resistance, and aging resistance.
● Easy to construct, it is a very safe and reliable bonding material for insulation systems.
● During construction, it does not slip or fall, and has excellent weather resistance, impact resistance, and crack prevention performance.
Application Range
Mainly used for bonding insulation boards such as polystyrene board, rock wool board, extruded polystyrene board, and polymer polystyrene board with building interior and exterior walls and ceilings.

Fit Ratio
The ratio of bonding mortar to water is about 4:1 (weight ratio), until mixed evenly. Reference dosage: 6-10kg/m2m2
Technical Performance
|
material |
colour |
shape |
size |
character
|
method of application |
applied range |
|
Cement, quartz sand, polymer binder and other mixtures |
gray |
powder |
About 20 kilograms per bag |
High strength adhesion, waterproof, impermeability, crack resistance, aging resistance |
The ratio of bonding mortar to water: 4:1 (weight ratio) |
It is mainly used for bonding the insulation board with the internal and external walls and ceiling of the building |
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Technical specification
Adhesion Strength
After 7 days: ≥ 0.5 MPa
After 28 days: ≥ 1.0 MPa
Enhanced formulations: ≥ 1.5 MPa
Open Time
Standard grade: 20 minutes at 23°C and 50% RH
Extended open time formulations: 30-45 minutes
Flexural Strength
Standard grade: ≥ 3.5 MPa
Flexible grade: ≥ 6.0 MPa
Compressive Strength
28 days: ≥ 10.0 MPa
Pot Life
At 23°C: 4 hours
In hot weather (above 30°C): 2-3 hours
Shrinkage
Drying shrinkage: ≤ 0.15%
Application Temperature
Minimum: +5°C
Maximum: +35°C
