Discover premium silica dioxide, industrial grade SiO2, for various applications.
PRODUCT PARAMETERS
Description
Overview of nano silica
Composition: Primarily composed of silicon dioxide (SiO2), similar to regular sand but on a much smaller scale.
Production: Nano silica can be produced through several methods such as sol-gel processes, vapor deposition, and plasma technology.
Applications: Due to its unique properties, nano silica finds applications in a wide range of fields including electronics, optics, biomedicine, and construction materials.
Features of nano silica
High Surface Area: One of the standout features of nano silica is its extremely high surface area relative to volume, which makes it highly reactive and useful for catalysis.
Enhanced Mechanical Properties: When added to other materials, nano silica can significantly improve mechanical strength, durability, and wear resistance.
Optical Properties: Depending on their size and shape, nano silica particles can manipulate light in interesting ways, making them useful in optical devices.
Biocompatibility: In biomedical applications, certain forms of nano silica are known for their biocompatibility and ability to deliver drugs within the body effectively.
Thermal Stability: Nano silica exhibits excellent thermal stability, allowing it to maintain its structure and properties at high temperatures.

Specification of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202
Hydrophobic Fumed Silica HB-139 (CAS 67762-90-7)
Costs PDMS-Treated Nano SiO Two for Powder Coatings
HB-139 is a high-performance hydrophobic fumed silica made from silicon dioxide (SiO TWO). It carries CAS number 67762-90-7 and is surface-treated with polydimethylsiloxane (PDMS). This treatment offers the powder solid water-repelling homes while keeping its ultrafine bit size in the nanometer range.
This product functions well as a free-flow help in dry powder systems. It quits powders from clumping with each other. Even in humid conditions, HB-139 aids keep smooth circulation and regular handling. Its nano-sized fragments spread out evenly via the mix. This produces steady, lump-free formulations every single time.
In powder layers, HB-139 boosts storage security and application performance. It minimizes caking during storage and makes sure consistent fluidization in spray tools. The hydrophobic surface avoids dampness uptake. That means fewer defects throughout healing and a smoother final finish.
HB-139 also increases anti-settling habits in fluid systems without damaging quality or gloss. It constructs weak gel frameworks that hold pigments and fillers in position. These structures damage easily under shear– so blending and splashing stay easy.
The material satisfies strict top quality standards. Each batch reveals constant surface area, bit dimension, and hydrophobicity. It consists of no included solvents or service providers. Pure fumed silica content ensures tidy performance in delicate applications.
Use HB-139 at low dosages– typically 0.1% to 0.5% by weight. Higher loadings may affect circulation or appearance. Always pre-disperse the silica right into the base powder before last mixing. This prevents dusting and makes sure complete activation of its flow-enhancing power.
Shop HB-139 in a dry, amazing place with the container securely closed. Maintain it away from wetness and straight sunlight. Appropriate storage space keeps its free-flowing nature and lengthy shelf life.

Applications of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202
Hydrophobic Fumed Silica HB-139: High-Performance Additive for Demanding Applications
Superior Circulation and Anti-Caking Residences
HB-139 is a hydrophobic fumed silica treated with polydimethylsiloxane (PDMS). Its CAS number is 67762-90-7. This nano-sized silicon dioxide powder functions as an extremely efficient free-flow help. It stops powders from clumping together. Even in humid conditions, it maintains dry blends streaming smoothly. You will discover it beneficial in coverings, adhesives, sealers, and several powdered formulations.
Boosted Stability in Liquid Solutions
When included in fluid systems like paints or inks, HB-139 protects against pigment settling. It gives the correct amount of enlarging without hurting clearness. The PDMS therapy makes the silica repel water. This indicates your item remains secure much longer on the shelf. It additionally aids control sagging on upright surfaces during application.
Broad Compatibility and Easy Handling
HB-139 blends well with organic systems. It works in solvent-based, water-based, and solvent-free items. Because it is surface-treated, it spreads promptly with typical mixing equipment. You do not require unique devices or additional steps. Just add it at the recommended dose, and it supplies constant outcomes set after set.
Relied On Performance Across Industries
Manufacturers make use of HB-139 in industrial finishings, building and construction chemicals, cosmetics, and pharmaceuticals. In each situation, it solves genuine issues: inadequate circulation, difficult settling, or irregular appearance. Its nano-scale fragments create strong networks at low loadings. That implies you get performance without including way too much material. The result is a cleaner tag and lower price each.
This hydrophobic fumed silica meets stringent high quality standards. Every set is evaluated for surface area, wetness content, and hydrophobicity. You can rely upon it to execute the same way whenever you utilize it.
Company Introduction
Welcome to HiphopGalaxy, a trusted global supplier of high-quality silicon dioxide (SiO2) powder, renowned for its exceptional purity and performance. Established with a vision to deliver cutting-edge materials that meet the diverse needs of modern industries, we have positioned ourselves as a leading player in the international market.
Our SiO2 powders find applications across multiple sectors, including adhesives, coatings, pharmaceuticals, cosmetics, polymers, and electronics. Each application benefits from the unique properties of our products—high surface area, excellent thixotropy, chemical inertness, and superior reinforcement capabilities. Whether you need hydrophilic or hydrophobic variants, we offer tailored solutions to meet your specific requirements.
If you have any questions, please feel free to contact us(nanotrun@yahoo.com).
Payment Methods
T/T, Western Union, Paypal, Credit Card etc.
Shipment Methods
By air, by sea, by express, as customers request.

5 FAQs of hydrophobic fumed silica PDMS treated cas 67762-90-7 silicon dioxide powder coatings nano sio2 HB-139 free flow aid R202
Frequently Asked Questions About Hydrophobic Fumed Silica HB-139 (CAS 67762-90-7)
What is hydrophobic fumed silica HB-139?
HB-139 is a nano-sized silicon dioxide powder. It is treated with PDMS (polydimethylsiloxane), which makes it water-repellent. This product acts as a free-flow aid and anti-caking agent in powders and coatings.
Why use HB-139 in powder coatings?
HB-139 stops powders from clumping. It keeps the material flowing smoothly during storage and processing. Its hydrophobic nature also protects against moisture, which helps maintain coating quality and shelf life.
How does HB-139 improve flowability?
The fine particles of HB-139 coat other powder particles. This reduces friction between them. As a result, the powder moves more freely and evenly. This is important for consistent application in spray systems or mixing processes.
Is HB-139 safe to handle?
Yes, when used as directed. Always follow safety guidelines. Wear gloves and a mask to avoid inhaling fine dust. Store in a dry, cool place away from moisture. Keep containers sealed when not in use.
What industries use this silica?
Many industries rely on HB-139. These include paints and coatings, adhesives, cosmetics, pharmaceuticals, and food-grade powders. Any application needing dry, free-flowing, and moisture-resistant powders can benefit from this additive.
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