VAE powder for United Arab Emirates
VAE powder: A Revolutionary Building Material for the United Arab Emirates
The construction industry in the United Arab Emirates is experiencing a major shift towards sustainable and eco-friendly building materials. In recent years, VAE powder has become an increasingly popular choice for construction projects in the UAE due to its numerous benefits over traditional building materials.
Vinyl acetate ethylene (VAE) powder is a white, odorless, and water-soluble thermoplastic resin that is used to make a variety of building materials, such as adhesives, coatings, and sealants. VAE powder has emerged as a revolutionary building material due to its low volatile organic compound (VOC) emissions, high water resistance, and excellent bonding properties.
VAE powder has been used in a wide range of applications in the construction industry, such as tile adhesives, waterproofing systems, and skim coats. VAE-based adhesives and coatings are used extensively in the construction of buildings, highways, bridges, and airports. They are also widely used in various industries, such as automotive, textile, and paper.
VAE powder is known for its excellent performance in extreme weather conditions. It can withstand high temperatures and humidity levels, making it an ideal building material for the hot and humid climate of the UAE. VAE-based coatings provide an additional layer of protection to buildings, preventing water and other elements from seeping into the walls and causing damage.
VAE powder is a popular choice for construction projects in the UAE due to its superior quality and durability. It is known to last longer than traditional building materials, reducing the need for frequent repairs and replacements. This results in significant cost savings for contractors and building owners.
In conclusion, VAE powder has emerged as a revolutionary building material in the United Arab Emirates due to its numerous benefits over traditional building materials. Its low VOC emissions, high water resistance, and excellent bonding properties make it an ideal choice for construction projects in the UAE. If you are looking for a reliable and high-quality VAE powder supplier, consider sourcing from Pakistan, Morocco, Peru, United States, or India.
By using VAE powder in your next construction project, you can build structures that are not only durable and eco-friendly but also cost-effective in the long run.
Faq
What are the main raw materials of Hydroxypropyl Methylcellulose (HPMC)?
1. Hot water dissolution method: HPMC does not dissolve in hot water, but it can disperse evenly in hot water initially and then rapidly dissolve upon cooling. There are two typical methods described as follows:
(1) Place the required amount of hot water in a container and heat it to approximately 70°C. Gradually add HPMC while stirring slowly. Initially, HPMC will float on the water's surface and gradually form a slurry, which cools down under stirring.
(2) Add 1/3 or 2/3 of the required amount of water to a container and heat it to 70°C. Disperse HPMC according to method (1) to prepare a hot water slurry. Then, add the remaining cold water to the hot water slurry and cool the mixture after stirring.
2. Powder mixing method: Mix HPMC powder with a large amount of other powdered substances using a blender. Afterward, add water for dissolution. In this case, HPMC can dissolve without clumping because each tiny corner of the powder contains only a small amount of HPMC, which dissolves immediately upon contact with water. This method is commonly used in putty powder and mortar production.
What is the dosage of Hydroxypropyl Methylcellulose (HPMC) in putty powder?
The viscosity of HPMC is inversely proportional to temperature, meaning that viscosity increases as temperature decreases. When we refer to the viscosity of a certain product, it generally refers to the measurement result of its 2% water solution at 20 degrees Celsius.
In practical applications, in regions with large temperature differences between summer and winter, it is advisable to use relatively lower viscosity during winter for better construction. Otherwise, at low temperatures, the viscosity of the cellulose increases, resulting in a heavier feel during application.
Medium viscosity: 75,000-100,000 (mainly used for putty)
Reason: Good water retention.
High viscosity: 150,000-200,000 (mainly used for polystyrene particle insulation mortar powder and foamed glass bead insulation mortar)
Reason: High viscosity, reduces mortar dusting and sagging, improves construction.
However, in general, higher viscosity provides better water retention. Therefore, many dry mortar manufacturers consider using medium-viscosity cellulose (75,000-100,000) instead of low-viscosity cellulose (20,000-40,000) to reduce the dosage and costs.
What are the formulations for interior and exterior wall putty powder?
The cold-water soluble type of HPMC is surface-treated with formaldehyde, allowing it to disperse rapidly in cold water but not truly dissolve. It only dissolves when the viscosity increases. The thermal soluble type does not undergo surface treatment with formaldehyde. A higher dosage of formaldehyde results in faster dispersion but slower viscosity increase, while a lower dosage has the opposite effect.
How to choose the appropriate hydroxypropyl methylcellulose (HPMC) for different applications?
In the application of HPMC in putty powder, it plays three roles: thickening, water retention, and facilitating construction. Thickening: Cellulose can thicken the mixture, maintain uniform suspension, and prevent sagging. Water retention: It slows down the drying process of putty powder and assists in the reaction of lime and calcium in water. Construction: Cellulose acts as a lubricant, improving the workability of the putty powder. HPMC does not participate in any chemical reactions; it only serves as an auxiliary agent. When putty powder is mixed with water and applied to the wall, a chemical reaction occurs because new substances are formed. However, if the putty powder is scraped off the wall, ground into powder, and reused, it is not suitable because a new substance (calcium carbonate) has already formed. The main components of lime and calcium powder are Ca(OH)2, CaO, and a small amount of CaCO3. The reaction can be represented as: CaO + H2O = Ca(OH)2 — Ca(OH)2 + CO2 = CaCO3 ↓ + H2O. Under the action of water and carbon dioxide in the air, lime and calcium carbonate are formed. HPMC only assists in water retention and the better reaction of lime and calcium; it does not participate in any reactions itself.