ISOLENE® 40-S

Identification

Chemical Family

Polyisoprenes

Chemical Name

Polyisoprene

GBU

EA

Polymer Name

Polyisoprene (IR)

Blend

false

CAS Number

9003-31-0

EC Number

618-362-9

Single Ingredient

true

Categories

Markets → Electrical & Electronics → Applications → Packaging & Assembly → Potting Compounds

Markets → Industrial → Applications → Chemical & Industrial Manufacturing → Tooling & Moldmaking

Markets → Printing & Packaging → Applications → Tapes, Labels & Adhesives → Tapes & Labels

Technologies → CASE → Product Families → Resins & Binders → Other Resins & Binders

Technologies → Elastomers → Product Families → Elastomer Additives → Fillers & Extenders

Technologies → Elastomers → Product Families → Elastomer Additives → Processing Aids

Technologies → Elastomers → Product Families → Thermoset Elastomers → Isoprene Rubbers (IR)

Technologies → Plastics → Product Families → Polymer Additives → Processing Aids

Application Information

Cure Method

Radiation Cure

Applications

Compatible Polymers & Resins

Styrene Isoprene Styrene (SIS)

End Uses

Adhesive & Sealant End Applications

Pressure Sensitive Adhesive

Plastics & Elastomers End Uses

Tooling

Features

Materials Features

Low Molecular Weight,

Low Temperature Strength,

Low Viscosity,

Rubber Replacement,

Soft,

Translucent,

UV Curable,

High Bleed Resistant

Features & Benefits

Labeling Claims

Impurities-free

Functions

CASE Ingredients Functions

Binder & Resin

Plastics & Elastomers Functions

Processing Aid,

Extender

Packaging & Availability

Packaging Type

Drums,

Pails

Regional Availability

• Asia Pacific
• Europe
• Global
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Typical Packaging

Typical Packaging ISOLENE® 40-S is available in the following standard packages:

• 34 lb. steel pail
• 350 lb. steel drum

Physical Properties

Color (Properties)

Amber,

Translucent

Physical Form

Liquid

Appearance

Light amber liquid

Properties

Density:

922.691 kg/m³

Molecular Weight:

32000 g/mol

Solid Content:

100 %

Specific Gravity:

0.92323

Technical Data

	Value	Units	Test Method / Conditions
Ash Content	0.1	Wt(%)	ASTM D1416
Color Scale	max. 8	Gardner	Gardner Color Scale
Degree of Unsaturation	92	% (mol)	Ozone Analysis
Density	7.7	lb/gal	ASTM D1875
Flash Point	240	°C	-
Glass Transition Temperature (visual)	-65	°C	Internal Test Method
Molecular Weight (average molecular weight)	32000	-	Gel Permeation Chromatography
Solid Content	100	%	-
Specific Gravity	0.92	-	ASTM D1875
Viscosity (at 38°C)	36,000 - 55,000	cPs	-
Volatile Content	0.87	Wt(%)	ASTM D1416

Typical Properties

	Value	Units	Test Method / Conditions
Base	Polyisoprene	-	-
Handling Temperature	max. 121	°C	-
Storage Temperature	66	°C	-
Viscosity (at 121°C)	1000	cPs	-
Viscosity (at 149°C)	500	cPs	-
Viscosity (at 25°C)	120000	cPs	-
Viscosity (at 52°C)	15000	cPs	-
Viscosity (at 66°C)	7000	cPs	-
Viscosity (at 80°C)	3300	cPs	-
Viscosity (at 93°C)	2300	cPs	-

Appearance

Light amber liquid

Storage & Handling

Handling

• ISOLENE® products are viscous polymers. Heating the drums lowers the viscosity for easier handling. Vent the drums before heating to avoid pressure build up.
• Avoid exposing ISOLENE® products to temperatures above 121°C. The polymer may form a skin and it may darken.
• ISOLENE® polymers can be compounded with virtually any type of rubber processing equipment. Processing requirements vary with the desired finished properties and with the other formulation ingredients.

Storage Condition

Store in a dry environment to prevent damage to the packaging. The liquid rubber products are stable over a wide temperature range. They are not damaged by freezing temperatures or occasional short-term exposure to temperatures of 66°C.

Shelf Life

2 years

Technical Details & Test Data

Viscosity

ISOLENE® 40-S is a low molecular weight grades of synthetic polyisoprene. They are viscous liquids at typical processing temperatures. The following table indicates the viscosity (cp) at typical conditions.

Temperature	Viscosity (cP)
25°C	120,000
66°C	7,000
93°C	2,300
80°C	1,000
121°C	3,300
149°C	500
38°C	40,000
149°C	15,000