Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
- Classification
Proprietary polyisobutylene polymer. 100% solids.
Available at 50%-70% solids in mineral spirits.
Features & Benefits
- CASE Ingredients Features
- Substrates And Systems-Chemistry Non-Polar
- Core structure: Distinctly branched aliphatic which gives excellent chemical, weather and oxidation resistance, stability and low color. Best functioning in butyls, EPM/EPDM, microcrystalline wax, asphalt and, polypropylene, HDPE, LDPE, polyisobutylene, etc.
- Diluents and carriers: Aliphatic and napthenic solvents work very well. Suitable for solvent-based composition hot melt adhesive and sealant applications, and can be formulated with other polymers, resins, filters, pigments, oils, thickeners, waxes and stabilizers to obtain a desired balance of properties. Avoid strong oxidizers. NorthStar Elastomers provides broad product modification opportunities through blending of custom polymers to modify tack, elasticity, temperature stability, etc.
- Polar polymers: (Such as urethanes, acrylics, polyesters and polyamides) are generally incompatible. Avoid polar solvents.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Adhesive & Sealant Type
- Uses
- Adhesives: High tack and elasticity in PSA adhesives; water and gas proof barrier in sealing tapes; cold flow properties make it ideal for use in "self-healing" barrier products. Variants functional at very high temperatures, Norst® PB-403-34 up to 650EF ( 343EC), Norst® PB-404-44 up to 800EF (427EC).
- Sealants: Waterproof and gas proof barrier; excellent tack and elasticity for sealants and mastics; cold flow over a wide temperature range in "self-healing" products; good internal cohesive strength.
- Products
Industrial and nonwoven adhesives, barrier tapes, electrical insulation and cable filler, construction mastics and caulks, window and door sealants, waterproofing compounds, pipeline protection, roofing membranes, bitumen modification, etc.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Average Mass (Mw) | 78753.0 | — | — |
| Average Number (Mn) | 1941.0 | — | — |
| Density (20°C) | 0.91 | g/cc | — |
| Dispersity | 40.6 | — | — |
| Glass Transition Temperature (20°C/Min) | -77 ± 1 | °C | DSC |
| Modulus Loss (G") | 6356.0 | Pa | — |
| Modulus Storage (G', 25°C) | 15330.0 | Pa | — |
| Penetration Range (Cone Penetrometer, 150 gm Weight, 5 seconds at 77°F) | 150-299 | — | — |
| Staudinger Index | 48.5 | ml/g | — |
| Viscosity Range (212°F) | 820,000 - 860,000 | cps | — |
| Viscosity Range (300°F) | 332,000 - 372,000 | cps | — |
| Viscosity Range (350°F) | 240,000 - 280,000 | cps | — |
| Volatility (% at 105°C for 2 hr, g/100g) | 0.17 | wt % | — |
| Z Average Mass (Mz) | 334524.0 | — | — |
Packaging & Availability
- Packaging Type
- Packaging
- 45 pound boxes; 350 pound open head drums.
- Quick Release boxes available. Drums are coated for clean, efficient unloading.
- 25 pound Quick Release boxes also available.