Chemical Structure: α,ω-Dihydroxy-polydimethylsiloxane (HO-PDMS-OH), a linear siloxane chain with terminal silanol groups.
Reactivity: The terminal –OH groups readily condense with silane coupling agents, crosslinkers (e.g., alkoxysilanes, silicates, isocyanates) or moisture in air to form elastomers at room temperature (RTV).

This is a medium-to-high-viscosity, hydroxyl-terminated polydimethylsiloxane that serves as the backbone for RTV silicone elastomers, construction sealants, release coatings, textile finishes, and specialty polymer modifiers.

Silicone defoamers are liquids with particularly low surface tension that contain polysiloxane as their main active ingredient. However, the chemical structure of the polysiloxane plays a decisive role in the defoaming effect. For example, short-chain polysiloxanes can stabilize foam rather than defoam. Whether a specific polysiloxane is a foam stabilizer or a defoamer depends on the compatibility and solubility of the product in the liquid medium. Only incompatible and insoluble polysiloxanes have a defoaming function.

JN-120 series modified silicone liquid defoamer is a new type of high-efficiency defoamer formed by adding various additives to polyether modified silicone. The defoaming and antifoaming properties of this product are quite superior; it is less toxic than polyether defoamers and is more conducive to the growth of microorganisms; at the same time, it does not break the emulsion or float oil after high temperature (120-130℃) disinfection: it effectively reduces the amount of addition. Since this series of products was put on the market, it has been well received by users.

Solid silicone defoamer is a defoamer whose effective ingredients are attached and fixed on the surface of the dispersed system of solid particles, solving the problem of defoamer ingredients and emulsifiers at the same time. Solid silicone defoamer has good storage stability, is easy to transport and use.

Appearance: Colorless or light yellow transparent liquid
Content: 42%
Viscosity (25C, mm:/S): 8-30
PH value: > 12.5
Specific gravity (25C): 1.20-1.35
Silsesquioxane content% (m/m): > 18-35
Alkali content% (m/m): 10-15

Model: HF5500
Main ingredient: silicone
Appearance: light yellow liquid
Solid content: 40%
Process: spraying at room temperature, soaking

Model: HF6500/HF8500
Main ingredient: fluorinated acrylic resin
Appearance: light yellow liquid
Solid content: 15%
Process: spraying at room temperature, soaking

Appearance: White dispersion liquid
Lonic: Weak cation
PH value: 3.0-5.0
Chemical composition: Modified polyurethane dispersion
HF2310-Solid content: 25%
HF2410-Solid content: 30%

Appearance: Milky white to light yellow liquid
Lonic: weak cation
PH value: 3.0-5.0
Chemical composition: Fluorocarbon polymer
Solid content: 30%

This is a proprietary blend of biodegradable surfactants that can be added to fresh, brine, or brackish water for air/foam, air/gel-foam, or mist drilling applications.