Redispersible Polymer Powder (RDP) in mortar is a crucial component for strong, reliable building structures. It is especially useful to enhance the original characteristics of constructions materials, such as tile adhesives, mortars, and other cement-based compounds.
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RDP is mixed with water, so its particles get redispersed to form a polymer emulsion. This redispersed emulsion retains the properties of the original RDP compound and offers a wide range of benefits.
However, choosing the right redispersible polymer powder is extremely important. This will ensure that the original properties of the mortar mix get enhanced and achieve best results.
Redispersible Polymer Powder (RDP) is essentially a re-disseminating polymer-based emulsion that is derived from the spray-drying of a copolymer emulsion. The spray-drying process converts the fluid emulsion into a fine free-flowing powder.
However, the RDP powder quickly returns to its original emulsion state when mixed with water in the proper ratio. The emulsified compound retains all its original properties and provides the same to the construction mixture.
Some of the key reasons for choosing RDP is its ability to enhance the mortar&#;s rheological properties. It can improve the fluidity of the mortar mix, so it flows and spreads evenly. This makes it easier to apply the mortar and get a smoother final finish.
Another key characteristic RDP enhances is the water resistance of the mortar mix. By adding RDP, it is possible to reduce the damaging effects of water on tile adhesives. This helps build a stronger, and more durable structure.
Besides this, you should choose RDP to improve the mortar&#;s bonding strength. This lowers the risk of untimely detachment and ensures that the tiles adhere to the substrate surfaces for a longer time.
It is crucial to determine the inherent properties of polymer powder for use with mortar before buying it. Let&#;s check out the simple way to assess flexibility and rigidity of polymer powder &#;
Elasticity is one of the most crucial characteristics to check if you want to choose the right redispersible polymer powder. A good quality RDP gives incredible elasticity to the mortar mix. This allows the mortar to withstand structural movement safely. It also prevents the mortar from developing cracks on the surface.
Rigid RDP products do not have sufficient elasticity. This often decreases the flexibility of the mortar and makes it prone to cracks. Elasticity is a critical characteristic when choosing RDP, as it helps to measure the level of flexibility it will provide to the mortar on drying.
Here&#;s how to quickly check the elasticity of an RDP product &#;
When you choose RDP which is flexible it will have a lower tensile strength. This helps the mortar to adapt to small deformations which may prevent cracks from developing. However, an inflexible RDP tends to have a greater tensile strength. This ensures that the mortar is more resistant to deformations.
Tensile strength is an important characteristic to consider when choosing RDP. You should check the rigidity or flexibility of the redispersible polymer powder you need to use with the mortar.
Here&#;s a quick method of assess the tensile strength of an RDP for use with mortar &#;
A flexible polymer powder will show lower tensile strength, which can deform the mortar under stress. On the other hand, rigid polymer powder will show higher tensile strength, indicating its ability to resist deformation strongly.
A highly quality flexible redispersible polymer powder forms a thin, elastic film while rigid RDP forms a thicker, and more rigid film on the mortar surface. The elasticity of these films determines the overall rigidity or flexibility of the mortar produced. Thus, the appearance of the film formed by RDP is a great way to check the level of flexibility or rigidity that the mortar will have.
Here are two main characteristics to check when assessing film formation of RDP with mortar &#;
It is very important to check the rigidity or flexibility of the product for choosing the right redispersible polymer powder. By checking the elasticity, tensile strength and film-forming properties you get valuable information and can decide the best RDP for your requirement.
However, you need to remember that the rigidity or flexibility of the polymer powder will determine the performance and durability of the mortar mix.
Now we know the importance of checking flexibility and rigidity for choosing the right redispersible polymer powder. Let&#;s check the important factors to consider when choosing RDP for use with mortar &#;
The first factor to choose RDP is to know your exact performance requirements. For instance, you have a choice between different &#;grades&#; of RDP, which essentially determine its quality. Hence, the specific requirements of your project will determine the grade of RDP most suited for your project.
If you need to enhance the water-resistant properties of the mortar, you should choose RDP that has a higher hydrophobic capability. The quality and grade of RDP can also be determined by its polymer composition. Besides this, when choosing RDP make sure to buy the one with the highest solid content, as it directly affects its bonding strength and durability.
As mentioned above, redispersible polymer powder is made in different grades, depending on their exact intended application. For instance, you can choose RDP especially made for use with tile adhesives, or self-leveling compounds, or external rendering. Hence, you should consider the specific needs of the project to choose the right redispersible polymer powder. This way, you can ensure that the RDP is most effective for its intended use.
Make sure that the RDP you choose is compatible with the other components of the mortar mix, such as chemical admixtures, aggregates, and cement. Incompatibility between RDP and other construction compounds may cause problems, such as sub-par performance. Lack of compatibility between the RDP and other construction compounds can even lead to the failure of the mortar.
For instance, if there is incompatibility between the RDP and other construction chemicals, it can cause poor dispersion, decrease overall quality, and reduce performance too.
Performance is one of the most important factors to keep in mind when choosing the right redispersible polymer powder. You should assess the performance characteristics of various RDP products, such as their water resistance, workability, impact resistance and adhesion power.
Choose RDP that will enhance the required characteristics in your mortar mix.
Always choose redispersible polymer powder for mortar that increases the workability or functions of your mortar. It should be easy to mix, spread and effortless to apply. A good workability in RDP lets you have better control and ensures optimal application.
The RDP you choose should have excellent water resistance. Mortar surfaces, especially those on the exterior of buildings are subject to harsh weather conditions, such as rain. With maximum water resistance, the RDP-mixed mortar will not degrade, develop cracks, and suffer other water-related damage.
The adhesive property of RDP is another important factor to consider when choosing the most suitable redispersible polymer powder for mortar. Ideally, an RDP should enhance the bonding power between the mortar and substrate, irrespective of the materials. For instance, an ideal RDP should be able to form a strong bond between concrete, wood, and tiles, which ensure long-lasting adhesion.
Higher impact resistance is desired in mortar which is meant for use in areas prone to mechanical stress and impact. Choosing RDP with good impact resistance provides extra durability and protects the building surface against damage.
Amorphous polymer products generally have three mechanical states &#; viscous, elastic, and glassy.
When RDP is at a low temperature, it becomes a rigid solid, just like glass. In this state, the RDP allows very small deformation if it suffers an impact, hence it is called the glassy state.
As temperatures rise higher, the material shows increasing deformation. However, this deformation is comparatively stable within a certain range of temperatures. During this stage, the RDP is in an elastic state.
At higher temperatures, the RDP gets gradually more deformed and eventually turns to a viscous liquid. During this stage, the deformation cannot be corrected, hence the stage is called viscous fluid state.
Normally, the state between glassy and elastic state is known as &#;glass transition&#;. The corresponding temperature is called &#;glass transition temperature&#; or &#;Tg&#; in short. An RDP with a glass transition temperature over 0 degree has strong adhesive properties, however its flexibility is not much. When the glass transition temperature is below 0 degrees, the RDP has good flexibility but less adhesion in comparison.
The lowest glass transition temperature for an RDP product should be -15 degrees Celsius while the highest temperature is 5 degrees Celsius. The RDP products from reputed brands in India, such as Sakshi Chem Sciences Pvt Ltd, usually have a glass transition temperature of 3 degrees Celsius.
So, if you want to create an adhesive mortar mix, make sure to choose RDP with strong adhesion. In contrast, you should choose RDP with good flexibility in the mortar for plastering.
The reputation and clientele of the RDP manufacturer is also an important factor to consider before buying redispersible polymer powder for mortar. It is advisable to choose a brand which is well-established and reliable, with a proven track record of satisfied customers.
The brand of choice should supply high-quality redispersible polymer powder products. For assessing this, you can check the technical support, product certifications, testing methods, and customer testimonials. Make sure these aspects of the RDP manufacturer meet the international quality standards for construction chemicals and building additives.
Last, but not least, the cost of RDP is also an important factor to consider before buying redispersible polymer powder. Make sure that the cost of the RDP is affordable, but also the product should be good quality.
Conclusion
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Choosing the right redispersible polymer powder is extremely crucial to ensure strong and long-lasting structures. There are several factors to consider before buying the best-suited RDP product.
For instance, the RDP you choose should have strong bonding strength, easy application abilities, and suit your specific construction requirements. Make sure to check the flexibility, or rigidity, as well as the overall quality of the redispersible polymer powder product. Reputed brands, such as Sakshi Chem Sciences Pvt. Ltd. have been manufacturing and RDP supplier for decades.
Melacoll&#;-06-10 11:40
When buying cellulose ether HPMC HEMC HEC and redispersible polymer powder, you may have a lot of questions, such as product quality, annual production capacity, delivery time, payment term, samples, shifts, etc... Mikem provides customers with cellulose ether and redispersible polymer powder.
So the annual capacity of our cellulose ether is 50 000 per year. And for RDP, it is about 12 000 per year.
Well, our factory with 13 horizontal reactors and three vertical reactors. The output of each reactor is about seven tons per time per hour. So with all the reactors in operation, we have a daily output of about 200 tons per day. But actually, in a practice, it is 130 tons. So on average, it is about 55 tons of each grade of HEMC, HPMC, and HEC. And for RDP, we have a daily output of an estimated 20 tons.
For more information about Mikem chemical brands and their production capacity, please click here.
So we will start stocking our production, stocking our inventory after we receive your 30% prepayment.
And to contact the shipping company to book a proper vessel for you. It has an estimated departure time of two weeks after your payment. so you can get your products as soon as possible. Right. The production time of our factory is about 7 days.
We only need 7 days to prepare all your cargo and deliver it to the Qingdao port.
The ash content of our RDP MIKRANT ET is, for example, about 18% ash content.
What does it mean? It means that during the production process of VAE RDP, we need to put it into an addict named Calcium silicate. Calcium silicate is a very necessary step in the VAE RDP production process.
The ash content of 18% is among the middle-class to the upper class on the quality in the Chinese market.
Even Wacker VINNAPAS RDP will reach 12% ash in the addition of this agent. Our RDP MIKRANT ET products include three different series according to different levels. If you request for ash content of less than 12%, we may recommend to you the MIKRANT ET. Its counterpart is Wacker VINNAPAS N with an ash content of 12%.
So our payment term is 30% T/T payment as a deposit. And 70% balance T/T against the B/L copy or L/C at sight.
Well, we are investing in two Chinese factories for our Exclusive OEM manufacturing. it makes us more competitive with United States manufacturing standards and China's local economic raw materials or labor resources. Like WACKER, they also have two or three local Chinese OEM manufacturing plants under their brand's name.
One more independent MIKRTANT RDP factory is under construction. and it will be put into mass production this September .
Well, how ensure our quality? Our happy customers say everything. The customers will establish a long-term relationship with us. and they always. And our repurchase rate is very high. Plus the supervisor from the United States headquarters will give QC inspectors to supervise our production line. We have had a quality prosecutor who resident long in china. And they will be very strict on every level.
But recently considering the situation of the pandemic in Chinese markets, all the quality inspections are carried out by local reports. And we will conduct online meetings to report our batch quality certificate to our headquarters. But there still was no slack. we never slack. We will send the samples randomly as an inspection for them. If it fails, we will be required by our headquarters to limit our output.
So don't worry about the qualities. we are the best.
Of course, we welcome your business trip or business building trip for your from your side. And we expect that we are also willing to provide free samples for your testing.
If you have worked with, you know, the third party in china, welcome.
Yeah, we provide free samples ( 200g to 800g) for your lab texting.
And after that, we will be appreciated it if you can give us some feedback so that we can make better improvements and supply better products.
Well, to get the sample first, you need to find out your sales team in MIKEM Chemical (www.mikem.com). And you can send an inquiry asking for a sample.
You can detail how many samples you need and what is your target industry and which grade you need. You can tell all this information to our sales group. And we will have a sales group to contact you within 20 hours, yeah, within, sorry, 12 hours. And after that, you can get your sample. We will send the sample through FedEx or DHL. You will get the sample in estimated 20 days next.
Okay, for C1 standard concrete, we suggest you add 2 kg to 2.5 kg of HPMC per ton.
And for C2 standard concrete, our suggestion is to add more volume, say, 2.5kg to 3kg.
HPMC Dosage (KG) C1 2-2.5 C2 2.5 - 3Well, because MELACOLL and the rest of the cellulose ether suppliers adopt different production processes and different raw materials.
First, let's talk about the HPMC MHEC HEC raw material.
Walocel or the product from Lotte or Ashland or DOW, use the fine wood pulp. It determines that their products might have better water retention.
Well, MELACOLL HPMC production process, we're using refined cotton. this will determine that our products will have better workability and thicking property. The thick property is twice than that of the ordinary products in the market. So the intention we are designing our product is like this, say, high viscosity products for saving our customers' budget. Because of the higher viscosity, the dosage, for example, for tile adhesive, is lower than the normal products in the market.
So with our high-viscosity product, in some way, you can save your dosage, so you need less volume of our products. So in some way, you can save your budget.
Before load cellulose ether and RDP, first, we ensure our quality is the same as the samples we have sent to you for Lab testing, and we're open here. We're open to any inspection audition from your side. I mean if you have any good relationship with a third party from another plant or companies in China, you can send them to our plant. And they can involve in the loading during the day of loading. And they can actually involve in it and they can take some samples. They can send to the lab anything.
We also have a whole after-sale and QC group to make sure that our product is according to the standard.
Also, we have established companies seeking long-term relationships with our customers. So it is very important that we will value our reputation and the good procurement experiences from our customers like you.
We will keep on dozens of inventory in the peak season like in the middle of the year March, May, June, July.
And that is why our salesperson always needs our esteemed customer to provide your PO several days in advance. Because we need to tell our factory to put it into mass production or batch production. Especially in the peak season, our inventory will go out and will consume very fast.
Well, the vessel to your country.
I mean the date of the vessel and the lead time they all depend whether your countries are in Latin America. because, for example, to India and Chennai, we have four voyages per month and the lead time is about 15 to 20 days. For example, it would, the lead time will take will be longer because the distance is long right? So the lead time to Latin America would be 20 to 45 days. And the voyage mostly it would be four voltages per month.