Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Polymer Name
- CASE Ingredients Functions
- Fluids & Lubricants Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Materials Features
- Features and Benefits
MultiTech DiFunctional D provides many performance properties in adhesive formulations and other compounds.
- Softens the resin
- Improves low-temperature tack
- Improves the resistance to bleed through
- Acts as an efficient vehicle for powdered additives and curatives into a rubber compound
- MultiTech DiFunctional D liquid synthetic rubber cures by the same mechanism as polyisoprene rubber.
- It can replace rubber 1:1. A slight increase in curative levels may provide optimum performance when using levels above 15-20 phr of MultiTech DiFunctional D.
Applications & Uses
- Markets
- Applications
- Compatible Substrates & Surfaces
- Adhesive & Sealant End Applications
- Plastics & Elastomers End Uses
- Applications
MultiTech DiFunctional D is ideal for pressure sensitive adhesive (PSA) formulations based on block copolymers.
Typical applications include the following:- Rubber and polymer processing aid.
- Reactive vehicle for powdered additives.
- Rheology modifier for lubricants.
- Polymer base for molding and tooling systems.
- Polymer base for electrical encapsulants.
- Production of pressure sensitive adhesives.
H.B. Fuller offers a Compounding Guide with starting point formulas for these and other applications.
Properties
- Color (Properties)
- Physical Form
- Appearance
- max. 8
- Physical Properties
Value Units Test Method / Conditions Density 7.7 lb/gal ASTM D1875 Solid Content 100 % - - Typical Properties
Value Units Test Method / Conditions Unsaturation 92 mole % Ozone Analysis Typical Viscosity Range (at 38°C) 300 - 500 cPs - Specific Gravity 0.92 - ASTM D1875 Volatiles 0.47 wt % ASTM D1416 Ash Content 0.1 wt % ASTM D1416 Glass Transition Temperature -65 °C - Average Molecular Weight 65 - GPC - Characteristics
Value Units Test Method / Conditions Consistency Liquid - -
Regulatory & Compliance
- Chemical Inventories
Technical Details & Test Data
- Viscosity
MultiTech DiFunctional D 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/77°F 1,000,000 38°C/100°F 380,000 52°C/125°F 170,000 66°C/150°F 110,000 80°C/175°F 50,000 93°C/200°F 23,000 121°C/250°F 13,000 149°C/300°F 8,000
Packaging & Availability
- Packaging Type
- Packaging Information
MultiTech DiFunctional D is available in the following standard packages:
330 Lb. steel drum
Storage & Handling
- Shelf Life
- 24 Months
- Handling and Storage Conditions
- MultiTech DiFunctional D are viscous polymers. Heating the drums lowers the viscosity for easier handling. Vent the drums before heating to avoid pressure build up
- Avoid exposing MultiTech DiFunctional D to temperatures above 121°C (250°F). The polymer may form a skin and it may darken.
- MultiTech DiFunctional D 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.
- 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 (150°F).
- The shelf life is a minimum of two years if stored properly in an unopened container.