Name: Methyl Hydrogen Silicone Fluid
Brand: Cornerstone

Agricultural Adjuvants

Silicone Agricultural Adjuvants

Polyether-modified siloxane surfactants that reduce surface tension, enhance spreading and penetration, improve rainfastness, and minimize pesticide waste.

Synergist Products

Model	Appearance	Solid%	Viscosity	Dosage%	Formulation
JS-001	Milky white liquid	14-16	350-800	0.1-0.4	SC, SE
JS-002	Milky white liquid	28-31	1500-4000	0.01-0.04	ME, AS

Water-Soluble Synergist Series

Model	CAS	Viscosity	Surface Tension (0.1%)	Feature
JS-408	67674-67-3	30-45	<20.5 mN/m	Super wetting & penetration
JS-308	67674-67-3	25-35	<20.5 mN/m	Cost-effective
JS-806	134180-76-0	30-40	<21.5 mN/m	Low foam
JS-077	27306-78-1	10-20	<21.5 mN/m	Super wetting & penetration
JS-805	67674-67-3	70-90	<20.5 mN/m	Cost-effective
JS-380	67674-67-3	60-90	<21.5 mN/m	SC optimized
JS-510	67674-67-3	20-40	<25.0 mN/m	Super wetting & penetration
JS-P50	67674-67-3	Solid powder		Solid formulation grade

Drift Control / Miticide / Borer Adjuvants

Model	Type	Viscosity	Surface Tension	Recommended Dosage
JS-406	Drift Control	10-25	<30 mN/m	75-225 mL/ha
JS-407	Drift Control	40-90	<22.0 mN/m	75-150 mL/ha
JS-606	Miticide Adjuvant	40-100	<22.0 mN/m	1500-3000× dilution
JS-608	Miticide Adjuvant	100-200	<25.0 mN/m	1500-3000× dilution
JS-506	Borer Adjuvant	20-50	<20.5 mN/m	1000-1500× dilution

Herbicide SynergyInsecticide SynergyFungicide SynergyPGRAerial ApplicationSpider Mite Control

Recommended: Herbicides 0.025-0.15%, Insecticides 0.025-0.1%, Fungicides 0.015-0.05%, PGR 0.025-0.05%. Packaging: 200kg drums or 25kg plastic drums. Shelf life: 12 months.

Methyl Hydrogen Silicone Oil Series

Reactive Si-H Bond Silicone Oils

Core intermediates for modified silicone synthesis, waterproofing agents, and silicone rubber crosslinkers. Low-cyclic electronic grade (D3-D10 <300 ppm) available for medical, infant/children, and post-cure-free products.

Methyl Hydrogen Fluid (High Methyl Hydrogen Silicone Oil)

Contains reactive Si-H bonds. Forms waterproof film on fabric, paper, metal, leather, and wood. Crosslinker for addition-cure silicone rubber and basic raw material for modified silicone oils.

Model	CAS No.	Appearance	Viscosity (25°C)	H% (wt)
JS-202	63148-57-2	Colorless clear liquid	18-30 mm²/s	≥1.55

Side-Chain Methyl Hydrogen Silicone Oil 4 Standard 4 Low-Cyclic

Model	Appearance	Viscosity (25°C)	H% (wt)	Volatile (150°C,1h)	Grade
JS-010-180	Colorless clear	150-250 mm²/s	0.09-0.11	≤11%	Standard
JS-018-90	Colorless clear	70-100 mm²/s	0.16-0.20	≤11%	Standard
JS-036-120	Colorless clear	70-150 mm²/s	0.34-0.38	≤11%	Standard
JS-075-100	Colorless clear	50-150 mm²/s	0.73-0.77	≤11%	Standard
JS-010-130	Colorless clear	100-150 mm²/s	0.09-0.11	≤1.5%	Low-Cyclic
JS-018-120	Colorless clear	90-150 mm²/s	0.16-0.20	≤1.5%	Low-Cyclic
JS-036-120	Colorless clear	80-140 mm²/s	0.34-0.38	≤1.5%	Low-Cyclic
JS-075-120	Colorless clear	80-140 mm²/s	0.73-0.77	≤1.5%	Low-Cyclic

Terminated Methyl Hydrogen Silicone Oil

Model	Appearance	Viscosity (25°C)	H% (wt)	Volatile
JS-005	Colorless clear	40-60 mm²/s	0.04-0.06	≤15%
JS-010	Colorless clear	15-25 mm²/s	0.09-0.11	≤15%
JS-018	Colorless clear	5-10 mm²/s	0.16-0.20	≤20%
JS-026	Colorless clear	1-10 mm²/s	0.24-0.28	≤30%
JS-500L ~ JS-10000L	Colorless clear	500-15000 mPa·s	High viscosity series — inquire for specs

Mixed Methyl Hydrogen Silicone Oil (Side-Chain + Terminated)

Model	Viscosity (25°C)	H% (wt)	Volatile (150°C,3h)
JS-008t-120	70-150 mm²/s	0.07-0.09	≤3.0%
JS-010t-100	70-120 mm²/s	0.09-0.11	≤3.0%
JS-028t-100	80-120 mm²/s	0.26-0.30	≤1.5%
JS-050t-120	100-150 mm²/s	0.48-0.52	≤1.0%
JS-075t-50	30-70 mm²/s	0.73-0.77	≤3.0%

Fabric WaterproofingSilicone Rubber CrosslinkerModified Silicone IntermediatesPaper ReleaseMedical SiliconeElectronic Potting

Packaging: 200kg steel drums or IBC totes. Shelf life: 12 months.

Vinyl Silicone Oil Series

Vinyldimethylsiloxy Terminated PDMS

CAS No.: 68083-19-2 | REACH: Compliant

Excellent reactive intermediate. Full range 100–100,000 mPa·s. Low-cyclic (D3-D10 ≤300-500ppm) and ultra-low volatile (≤0.05-0.20% at 200°C/4h) grades for thermal conductive adhesives, optical adhesives, and photoresists.

Standard Series 6 Models

Model	CAS	Viscosity (25°C)	Vi%	Volatile (150°C,3h)
V-100	68083-19-2	90-110 mm²/s	1.05	≤1.5%
V-500	68083-19-2	450-550 mm²/s	0.43	≤1.0%
V-1000	68083-19-2	900-1100 mm²/s	0.32	≤1.0%
V-10000	68083-19-2	9000-11000 mPa·s	0.14	≤1.0%
V-20000	68083-19-2	18000-22000 mPa·s	0.11	≤1.0%
V-100000	68083-19-2	90000-110000 mPa·s	0.07	≤1.0%

Low-Cyclic Series (HV) D3-D10 ≤300-500ppm

Model	Viscosity (25°C)	Vi%	Model	Viscosity (25°C)	Vi%
HV-100	100-200 mm²/s	1.05	HV-10000	9500-15000 mPa·s	0.14
HV-500	500-600 mm²/s	0.43	HV-60000	55000-75000 mPa·s	0.08
HV-1000	900-1500 mm²/s	0.32	HV-100000	95000-115000 mPa·s	0.07

Liquid Silicone RubberMedical SiliconeElectronic PottingThermal Conductive AdhesiveOptical AdhesiveInfant/Children Silicone

Ultra-Low Volatile (HV-E): Total volatiles ≤0.05-0.20% (200°C/4h). Inquire for complete specifications. Packaging: 200kg drums or IBC totes. Shelf life: 12 months.

Silicone Resin Series

MQ Silicone Resins & Powders

CAS No.: 68988-56-7 | REACH: Compliant

Highly crosslinked thermosetting polysiloxanes combining organic resin toughness with inorganic thermal stability. For LED encapsulation, PSA, electronic adhesives, and matting agents.

Methyl Hydrogen Silicone Resin (MHQ)

Model	CAS	Viscosity (25°C)	H%	M/Q	Refractive Index	Volatile
MHQ-2	68988-57-8	500±50 mm²/s	0.20±0.02	0.9-1.0	1.410	<3.0%
MHQ-4	68988-57-8	300±10 mm²/s	0.45±0.05	1.0-1.1	1.410	<3.0%
MHQ-8	68988-57-8	30±10 mm²/s	0.75±0.05	1.1-1.2	1.410	<3.0%

MQ Silicone Resin — Liquid

Model	Type	Viscosity (25°C)	Solid%	Peel Force (20μm)
HSV-2610	Condensation Methyl MQ	95±10 mm²/s	75±2	800-1200 g
HSV-2611	Addition-cure Methyl MQ	35±10 mm²/s	75±2	1200-1300 g
HSV-1590	Methyl Vinyl MQ	90000±5000 mPa·s	50±2	—
HSV-1509	Methyl Vinyl MQ	7000±1000 mPa·s	50±2	—

MQ Silicone Resin Powder (PMSQ)

Model	Product	CAS	Appearance	Bulk Density	Vi%
JMQ-1	Methyl MQ Powder	68988-57-8	White powder	0.72 g/cm³	—
FVMQ-1	Methyl Vinyl MQ Powder	68988-89-6	White powder	0.73 g/cm³	2.6±0.2
FVMQ-2	Methyl Vinyl MQ Powder	68988-89-6	White powder	0.72 g/cm³	3.6±0.2

LED EncapsulationElectronic PottingPSALSR ReinforcementThermal MaterialsPowder Coatings

Liquid: 200kg drums or IBC. Powder: 10/25kg drums/bags. Shelf life: 12mo (liquid) / 24mo (powder).

Specialty Silicones

Dimethyl Silicone Fluid / PDMS Fluid & Functional Silicones

CAS No.: 63148-62-9 | REACH: Compliant

HC-201 Low Viscosity Dimethyl Silicone Fluid / PDMS Fluid | CAS 63148-62-9

Models	Viscosity	Refractive Index	Flash Point	Features
HC-201-5/10/20/50/100/350/500/1000	5-1000 mm²/s	1.396-1.404	>150°C	Heat/cold resistance (-50~200°C), hydrophobicity, electrical insulation

TextilePersonal CareRelease AgentDefoamerElectronics

Shelf life: 24 months.

Hydroxypropyl Silicone Oil | CAS 104780-66-7

Viscosity	Hydroxyl Value	PDI	Mw	Moisture	Color (APHA)
40-80 mPa·s (typ. 65)	90-120 mgKOH/g (typ. 102)	1.40-2.50	1000-2000	<0.2%	<100 (typ. 40)

Synthetic LeatherPU ModificationTextileCoatingsAdhesives

Reacts with isocyanate for silicone/PU hybrid polymers. Shelf life: 24 months.

Phenyl Silicone Oil (HC-556 / HC-255) | CAS 68554-54-1 / 63148-58-3

Appearance	Refractive Index	Viscosity	Phenyl%	Thermal Stability
Colorless to pale yellow clear	1.460-1.540	50-500 mm²/s	5%-50%	Up to 300°C

LED EncapsulationCosmeticsHigh-Temp Thermal FluidElectronic Materials

Shelf life: 24 months.

Modified Silicones

Polyether & Alkyl Modified Silicone Oils

Non-ionic surfactants with low surface tension, good water solubility, emulsification, and foam stability. For personal care, textile auxiliaries, and leather treatment.

Polyether Silicone Oil

Model	Appearance	Viscosity (25°C)	Active%	Dosage%	Function
JS-193	Pale yellow to amber, clear	200-500	100	0.5-2	Antistatic, softening/smoothing, foam stabilizer
JS-204	Pale yellow to amber, clear	800-3000	100	0.5-2	Leather waterproofing, anti-cratering
JS-3667	Pale yellow to amber, clear	200-500	100	0.5-10	Fiber lubrication, wear resistance, anti-blocking
JS-208	Pale yellow to amber, clear	1000-2000	100	0.5-10	Improved hand feel & spreadability, emulsifier

Shampoo/ConditionerBody WashCream/LotionLeather TreatmentTextile AuxiliaryCosmetics

Packaging: 200kg drums or custom. Shelf life: 12 months.

Defoamer Series

Silicone Defoamers

Highly effective antifoaming agents based on polydimethylsiloxane. Low surface tension, chemically inert, thermal stability, and extremely low dosage requirements. Suitable for water treatment, textile processing, pulp & paper, metalworking fluids, oil & gas, and chemical manufacturing.

Dimethyl Silicone Fluid / PDMS Fluid (Base Fluid) 3 Models

Model	CAS No.	Appearance	Viscosity (25°C)	Refractive Index	Application
HC-201-50	63148-62-9	Colorless clear liquid	50 mm²/s	1.400-1.405	Low-viscosity defoamer base
HC-201-350	63148-62-9	Colorless clear liquid	350 mm²/s	1.400-1.405	General-purpose defoamer base
HC-201-1000	63148-62-9	Colorless clear liquid	1000 mm²/s	1.400-1.405	High-temperature defoamer

Silicone Defoamer Compounds & Emulsions

Model	Type	Appearance	Solid / Active %	pH	Target Application
JS-E10	Emulsion	Milky white liquid	10 ± 1%	6.5-8.0	Textile, pulp & paper, wastewater
JS-E20	Emulsion	Milky white liquid	20 ± 1%	6.5-8.0	Textile dyeing, metalworking
JS-E30	Emulsion	Milky white liquid	30 ± 1%	6.5-8.0	Chemical processing, oil & gas
JS-C100	Compound	White to off-white paste	100%	—	High-temperature, non-aqueous systems
JS-PG	Polyether-modified	Colorless to pale yellow	100%	—	Fermentation, food-grade compatible

Water TreatmentTextile ProcessingPulp & PaperMetalworking FluidsOil & GasChemical Manufacturing

Recommended dosage: 10-100 ppm based on active content. Emulsion products are water-dilutable. Packaging: 200kg drums or 25kg plastic drums. Shelf life: 12 months (emulsion), 24 months (compound/base fluid).

Thermal Management

Coolsil Silicone Cooling Fluid

Modified silicone oil for single-phase immersion cooling of data centers, servers, and IT equipment. Low viscosity, high flash point, excellent dielectric strength, and environmental friendliness.

Model	Viscosity	Thermal Conductivity (40°C)	Dielectric Strength	Flash Point	Specific Heat (40°C)
Coolsil C-10	10 mm²/s	0.145 W/(m·K)	>30 KV	>180°C	1.7 KJ/(kg·K)
Coolsil C-20	20 mm²/s	0.150 W/(m·K)	>30 KV	>200°C	1.8 KJ/(kg·K)

Data Center CoolingServer CoolingEdge ComputingPower Electronics5G Base Station

Packaging: 200kg drums or IBC totes. Shelf life: 24 months.

Cable Compound Additives

Wire & Cable Compound Additives

Certifications: IEC 60332 · GB 31247 · EN 50575

Comprehensive additive solutions for power cables, communication cables, photovoltaic cables, and automotive wire harnesses.

Halogen-Free Flame Retardants

Product	Appearance	P%	N%	Particle Size	Decomp. Temp	Feature
Phosphorus-Nitrogen IFR-1	White powder	18-22	16-20	10-15 μm	>260°C	General purpose, cost-effective
Phosphorus-Nitrogen IFR-2	White powder	20-24	18-22	8-12 μm	>280°C	High heat resistance, B1 grade
Magnesium Hydroxide MH-1	White powder	—	—	2-5 μm	>340°C	Ultra-fine, excellent processability
Aluminum Hydroxide ATH-1	White powder	—	—	3-8 μm	>220°C	Economical, wide application

Power CablesCommunication CablesBuilding WirePV CablesAutomotive HarnessCharging Pile Cables

Packaging: 25kg paper bags. Shelf life: 12 months.

Cable-Grade Antioxidants

Product	Chemical Name	CAS	Feature
AO-1010	Pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]	6683-19-8	High-performance primary antioxidant
AO-168	Tris(2,4-di-tert-butylphenyl)phosphite	31570-04-4	Secondary antioxidant, excellent processing stability
AO-215	AO-1010 / AO-168 blend	—	Synergistic blend, optimal overall performance
AO-DSTDP	Distearyl thiodipropionate	693-36-7	Long-term thermal stability, synergistic with AO-1010

XLPE Cable CompoundPVC Cable CompoundHFFR CompoundSheathing Compound

Packaging: 25kg cardboard drums or paper bags. Shelf life: 12 months.

Light Stabilizers & UV Absorbers

Product	Chemical Name	CAS	Feature
UV-326	2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole	3896-11-5	High-efficiency UV absorber
HALS-944	Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl]...]	71878-19-8	High-efficiency light stabilizer (HALS)
UV-531	2-Hydroxy-4-n-octoxybenzophenone	1843-05-6	Broad-spectrum UV absorber

Outdoor Cable SheathPV CablesEngineering PlasticsOutdoor Products

Packaging: 25kg cardboard drums or paper bags. Shelf life: 12 months.

Thermoplastic Elastomers

Elastomer Solutions

High-performance thermoplastic elastomers for automotive, construction, electronics, and medical applications. Complete support from grade selection to process optimization.

POE (Polyolefin Elastomers) — Ethylene-Octene Copolymer

Grade	Density	MI (g/10min)	Hardness (Shore A)	Tensile (MPa)	Application
POE-8150	0.868	0.5	72	>10	PP toughening, automotive bumpers
POE-8200	0.870	5.0	70	>8	PP modification, cable insulation
POE-8842	0.857	1.0	55	>5	Low-temp toughening, footwear
POE-7467	0.862	1.2	60	>6	General purpose blown film

Automotive PartsWire & CablePackaging FilmFootwearPP Toughening

SEBS (Styrene-Ethylene-Butylene-Styrene)

Grade	Styrene%	Tensile (MPa)	Elongation%	Hardness (Shore A)	Application
SEBS-503	33	>25	>800	65	Cable sheathing, sealing strips
SEBS-604	33	>18	>650	72	Tool overmolding, casters
SEBS-6150	30	>20	>700	50	Medical devices, food-grade
SEBS-9550	30	>15	>600	42	Soft-touch goods, gaskets

Sealing StripsSoft-Touch GripsMedical DevicesToysSporting Goods

Other Elastomers

Type	Hardness Range	Temp Range	Typical Applications	Features
EPDM	Shore A 40-90	-50~150°C	Automotive seals, building waterproofing	Excellent weatherability, electrical insulation
TPV	Shore A 35-90	-40~135°C	Automotive seals, cable sheathing	Oil resistant, low compression set
TPE-S	Shore A 5-95	-40~100°C	Overmolding, consumer goods	Good haptics, excellent processability
TPE-U	Shore A 60-95	-40~120°C	Cable, film	High abrasion & tear resistance

AutomotiveConstructionCableConsumer GoodsIndustrial

Packaging: 25kg paper bags (grade-dependent). Shelf life: 24 months.

Product Catalog