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Silicone Oils & Emulsions

Silicone oils and silicone emulsions is mainly used as a mould release agent in foundries, also has wide application in the rubber and plastics industries. It is one of the component elements in making of polishes and cleansers for artificial leather fabrics and furniture polishes.

PRODUCTS	TYPE	CONTENT	REMARK
DC INDUSTRIAL	Poly Dimethyl siloxane fluid	100%	350 & 1000 cst
DC-290	Poly Alkyl alkaryl Emulsion	50%	Paintable release
IE 6601	PU Release emulsion		Water Based PU Release
DC 710/550	Phenyl Methyl Poly Siloxane	100%	Thermal Stable Fluid
DC-39	PDMS Emulsion	35%	Release Agent
HV-490	PDMS Emulsion	35%	Release Agent
SILANES PRODUCTS	TYPE	PURITY	REMARK
Z-6011	Amino functional alkoxysilane	98.50%	Coupling agent for Phenolic Resinsr
Z6040	glycidoxypropyl tri methoxy silane	98.50%	Coupling agent for Phenolic Resin

Silicone Fluid

Item Code: Dow-Corning-Q2

Dow-Corning-Q2 - 3387 Release Agent (Modified Silicone Fluid) : Silicone polymer

Features:

No excessive cleaning required before finishing moulded parts

Excellent mould coverage (good wetting and spreading)

Heat stable

No build-up on moulds

No solvent : high flash point

Applications:

Dow-Corning-Q2-3387 Release Agent has been specially formulated as a semi-permanent release agent in a wide range of applications, including:

Polyurethane Release: particularly polyester type, polyurethane shoe soles.

Micro-cellular automotive parts and furniture (integral skin).

Automotive parts: bumpers, crash-pads, dashboards.

Typical Properties:

Specification writers: These values are not intended for use in preparing specifications. Please contact your local Dow Caning sales representative prior in writing specifications on this product-

CTM*	Parameter	Unit	Value
862	Active material content	%w/w	100
176	Appearance (visual)		Clear colourless liquid
4	Viscosity at 25°C	mm²/s	140
6	Flash point - closed cup	°C	>250
	Diluent		Aliphatic, aromatic, chlorinated hydrocarbons

*CTM: Corporate Test Method, copies of CTMs are available on request.

How to Use?

DOW Corning Q2-3387 Release Agent (1 part w/w) is normally diluted with a solvent (10 parts w/w) before application by spraying or brushing on the mould.

Suitable solvents include most aliphatic, aromatic or chlorinated hydrocarbons.

Users are recommended to determine optimum concentration and application method on a small test sample before use in production.

Handling Precautions:

Product safety information required for safe use is not included.

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Dow Corning 200 Fluid

Item Code: Poly-Dimethyl-Siloxane

Features

• Water-clear silicone fluid available in viscosity ranging from 0.65 to 60,000 cst (mm²/s)
• Little change in physical properties over a wide temperature span - a relatively flat viscosity-temperature slope, and serviceability from -40°C up to 200°C
• Excellent water repellent
• Good dielectric properties over a wide range of temperatures and frequencies Low surface tension - readily wets clean surfaces to impart water repellent and release characteristics
• Viscosity above 10 mm²/s also exhibit heat stability, oxidation resistance, very low vapor pressures, and high flash point
• Low order of toxicity
• Essentially odorless
• Soluble in a wide range of solvents
• Non-greasy and non-rancidifying

Potydimethylsiloxane

Applications:

Release Material: Used alone or as part of a compounded formula, DOW Corning 200 Fluid provides a non-carbonizing mould release for rubber, plastics, and metal die castings. Foam Preventative: Extremely small amounts of the fluid effectively control foam in many processing operations, especially in non-aqueous systems.

Mechanical Fluid: Excellent viscosity-temperature characteristics, thermal and chemical stability, shear-breakdown resistance, compressibility, and rubber compatibility make DOW Corning 200 Fluid outstanding for mechanical/ hydraulic uses. Typical uses include hydrolic stabilisers, damping media.

Surface-Active Material: Added to vinyl plastisols, DOW Corning 200 Fluid improves the flow characteristics, de-aerates and lubricates me surface of the completed part.

Lubricant: The fluid provides excellent lubrication for most plastic and elastomeric surfaces. Lubricity with metals depends upon the combination involved. Care should be taken to select suitable metals for pumps and other items with moving parts.

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Dow Corning 203 Fluid

Item Code: Alkyl-Aryl-fluid

Release agent for molding, extruding and fabricating rubber and plastic parts, and in die casting metals

Features

Compatible with most organic coatings and adhesive systems

Provides a heat-stable film

Does not require unusual or extraordinary cleaning operations prior to painting, plating or bonding

Composition
Alkylaryl polysiloxane fluid

Uses

Dow Corning® 203 Fluid can be used for a wide variety of applications. It can be used for the production of floor mats and tiles, seals, grommets, gaskets, toys, paneling, decorative trim, household appliance assemblies, and similar plastic or rubber products that are coaled, painted, plated or bonded.

It is also highly effective as a parting agent in die casting aluminum, zinc, magnesium and other metals. In addition, Dow Corning 203 Fluid can be used as an additive in rubber and plastic formulations. When added as a built-in lubricant, the fluid facilitates the assembly of mechanical components and acts as a lubricant in service.

Typical Properties:

These values are not intended for use in preparing specifications.

Test	Unit	Result
Physical Form		Pourable liquid
Color, APHA, maximum		150
Specific Gravity at 25°C (77°F)		0.91
Viscosity at 25°C(77°F)	cs	1400
Refractive Index at 25°C (77°F)		1.464
Flash Point, Pensky-Martin closed cup, minimum		93 (200)

Specification Writers: Please obtain a copy of the Dow Corning Sales Specification for this product and use it as a basis for your specifications. It may be obtained from any Dow Coming Sales Office, or from Dow Corning Customer Service in Midland, MI. Call (517) 496-6000.

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Dow Corning 210H Fluid

Head stabilized polydimethylsiloxane DOW CORNING 210H Fluid ( Heat Stabilized Silicone Fluid )

Features:

Dimethyl silicone fluid with improved oxidation stability

Minimal viscosity change when subjected to severe heal and shear stresses

Applications:

Mechano-fluid devices and controls.
Heat transfer fluid in oil baths.

Typical Properties:

Specification writers: These values are not intended for use in preparing specifications. Please contact your local Dow Corning sales representative prior to writing specifications on this product.

Parameter	Unit	Value
Flash point - open cup	°C	>288
Pour point (ASTM D-97)1	°C	-65
Specific gravity at 25°C /15.6°C		0.96
Viscosity at 25°C	Cst	100
Viscosity-temperature coefficient, 1- (viscosity at 99°C / viscosity at 38°C)		0.6
Coefficient of expansion per °C unit volume/unit volume		0.00095
Vapour pressure at 204°C	pa	~330
Thermal conductivity at 25°C, W/m.K²		0.11
Volatility, % weight loss³		<2
Specific heat at 98.8°C	J/kg.K	1423

1: Apparently due to super-cooling, this test method yields pour points lower than the temperatures at which this silicons fluid would freeze if held at such temperature for a longer period.

2: Temperature gradient of l°C per cm thickness.

3: 35-40 grammes of fluid in a beaker having approximately a 20 cm² bottom area, heated in an air-circulating oven for 48 hours at 204°C.

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Methyl Hydrogen Fluid

Item Code: Dow-Corning-1107-Fluid

Applications:

• HydrophoHng treatment of plasterboard and plaster blocks.
• Treatment for powders and granuJar materials to make them water repellent and free flowing, and to reduce caking.

Typical Properties:

Specification writers: These values are not intended for use in preparing specifications. Please contact your local Dow Corning sales representative prior ig writing specifications on this product.

HOW TO USE

DOW CORNING 1107 Fluid Is usually applied from dilute solution. Solutions are prepared by diluting DOW CORNING 1107 Fluid with hydrocarbon solvents, acetone or methyl ethyl ketone (see Handling Precautions), and stirring the mixture gently until uniform. The extent of dilution wili depend on the surface to be treated and surface properties desired.

Curing

Coatings of DOW CORNING 1107 Fluid are usually heat cured to develop release properties or water repellency. Curing temperatures range from 120°C to 175°C. Curing times are much shorter al higher curing temperatures. Catalysts are often used to accelerate cure.

Foursuiiable catalysts in order of Increasing activity include zinc octoate (22% zinc), iron octoate (6% iron), dibutyl tin dilaurate, and tin octoates (28% tin). A typical catalyst concentration is one part catalyst, as supplied, to 10 parts of DOW CORNING 1107 Fluid.

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Tetrasulfide Silane

Item Code: Dow-Corning-Z-6940-Silane

Tetrasulfidosilane coupling agent for silica filled rubber.

Features:
Sulfur functional silane
Reactive in sulfur-vulcanized rubber

Benefits:

Provides compatibility and coupling between inorganic fillers and organic rubber (e.g. silica and SBR)

Composition:

(EtO)3Si(CH2)3-Sx-(CH2)3Si(OEt)3
x~3.75

Applications:

Coupling agent for inorganic fillers in organic rubber (such as silica in black rubber used in tire treads)

Typical Properties:

Specification Writers: These values are not intended for use in preparing specifications. Please contact your local Dow Corning sales office or your Global Dow Corning Connection before writing specifications on this product

Test	Unit	Result
Appearance		clear, amber liquid
Sulfur content	%	22.7
Average Sulfur Chain Length		3.75

Description

Dow Corning® Z-6940 Silane is a mixture of polysulfidosilane species with an average sulfur chain length of 3.75. It is a 100% actives product in a liquid form.

How to Use

As with any organofunctional alkoxysilane coupling agent, Dow Canting Z-6940 Silane can be applied as a primer or incorporated in-situ in a compound formulation.

As a primer of a surface, the silane can be dispersed in ethanol at about 1% and wiped onto a substrate.

As an in-situ treatment, the silane is typically added with the organic matrix and inorganic filler/reinforcement. In the case of black rubber, oil silane is added with the rubber, oil and silica in the first mix. The ethoxysilyl groups then react to the surface of the inorganic material during this mix. It is typical to drive the temperature of the mixture to over 150°C to get adequate reaction of the silane to the
filler.

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Silicone Oils & Emulsions Silicone Fluid Dow Corning 200 Fluid Dow Corning 203 Fluid Dow Corning 210H Fluid Methyl Hydrogen Fluid Tetrasulfide Silane Paper Coatings Speciality Paper Coatings Speciality Softeners For Fabrics Speciality Silicone Products Clariant Products Precipitated Silicas Mould Release Agents Industrial Antifoams

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