Basisil- 200: A Fumed Silica Thickening and Anti-Sagging Agent
Basisil- 200 is a fumed silica additive sourced by formulators who need reliable rheology control across paints, coatings, sealants, and unsaturated polyester resin systems. Buyers evaluating thixotropic agents for anti-sagging and anti-settling performance often compare this product against other fumed silica grades on thickening efficiency and ease of dispersion.
Typical Applications
- Paints, coatings, printing inks and unsaturated polyester resins
- Sealants and silicone adhesive
- Elastomers, especially HTV and RTV silicone rubber
- Cosmetics and pigment
- Heat insulator, storage battery, and similar applications
Properties
- Reinforcing filler in elastomers
- Rheology and thixotropy control of liquid systems
- Used as anti-settling, thickening, and anti-sagging agent
- Improvement of free flow and anti-caking characteristics of powders
Why Formulators Source Basisil- 200
Formulators working with unsaturated polyester resin and coatings systems need a thixotropic agent that builds viscosity predictably without compromising cure or clarity. This product is used to control rheology in liquid systems, helping prevent sagging on vertical surfaces and settling of pigments or fillers during storage.
For buyers building out a full auxiliary agent and additive program, our technical team can help confirm dosage and dispersion method for your specific resin or coating system.
Dosage and Dispersion Considerations
As with most fumed silica thixotropic agents, its performance depends heavily on shear input during mixing. Higher-shear dispersion generally activates the thickening network more fully, while low-shear hand mixing may require a longer mixing time or a slightly higher dosage to reach the target viscosity. Buyers formulating gelcoats, putties, or sealants with this additive typically start with small-batch trials before scaling to production volumes, since optimal loading varies by resin type, filler content, and desired sag resistance.
Because this additive is a fine, low-bulk-density powder, buyers should also plan for appropriate dust handling and storage in a dry environment, consistent with standard fumed silica handling practices used across the paints, coatings, and composites industries.
Comparing Basisil- 200 to Other Thixotropic Additives
Buyers sourcing rheology modifiers for unsaturated polyester resin or coatings often compare Basisil- 200 against other fumed silica or organoclay-based thickeners. Selection usually comes down to compatibility with the base resin, desired sag control at vertical application angles, and the balance between anti-settling performance and final gloss or clarity in the cured or dried film. For buyers already working with our recommended international brand products across the resin and additive range, our team can help position Basisil- 200 against existing formulations to confirm fit before a purchase order is placed.
Sourcing and Handling Guidance
Buyers should confirm dispersion equipment and mixing time against their own formulation before large-volume ordering, since thickening efficiency can vary with shear input. For plastics and composites testing standards referenced across the industry, see the ASTM D20 committee on plastics.
Frequently Asked Questions About Basisil- 200
What is Basisil- 200 used for?
It is a fumed silica additive used for rheology and thixotropy control in paints, coatings, printing inks, unsaturated polyester resins, sealants, and silicone adhesives.
Can this product be used in silicone rubber?
Yes, it is used as a reinforcing filler in elastomers, especially HTV and RTV silicone rubber systems, where it contributes to mechanical strength and processing behavior.
Does Basisil- 200 help prevent sagging in coatings?
Yes, it is used as an anti-settling, thickening, and anti-sagging agent, helping coatings maintain film thickness on vertical surfaces during application and cure.
Is it suitable for cosmetics and pigment applications?
Yes, this fumed silica grade is also used in cosmetics and pigment formulations, along with heat insulator and storage battery applications.
Is Basisil- 200 available for bulk purchase?
Yes, our team can provide technical documentation and supply chain resource support for buyers sourcing this product in trial quantities or larger production volumes.
Request a Quote for Basisil- 200
If your formulation requires a fumed silica thickening and anti-sagging agent, contact our team with your target viscosity and application system. We can help confirm whether this product fits your process and provide supporting technical documentation and supply chain resource support.
