Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Special Features
- 1-component system
- Flame retardant
- Heat resistant
- Neutral-cure
- Non-slump
- Oil resistant
- One-component
Applications & Uses
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Cure Method
- Applications
Formed-In-Place-Gaskets (Wet Type)
- Application Details
Multipurpose grade for sealing and bonding in technical applications such as FIPG applications in automotive oil pans.
Processing
- ELASTOSIL® N 2189 is a one-part room temperature vulcanizing sealant that cures to a flexible silicone rubber on exposure to moisture. During the curing process a small amount of an alcohol is released. Usually only minor volume shrinkage is observed.
- After about 15 to 25 min a skin of cured material is formed at the surface. The curing rate strongly depends on temperature and atmospheric humidity in the surrounding After completion of the vulcanization process the product may be continously exposed to temperatures as high as 180°C 356 °F) without damage.
- If removing of silicone rubber from machines or dispensing equipment is necessary, white spirit is recommended as a solvent. However, cleaning should take place before the rubber is fully cured. Afterwards only the use of mechanical forces in combination with a swelling solvent or the use of high temperatures of approximately 100°C will help to remove sealant residues.
- ELASTOSIL® N 2189 shows good primerless adhesion to many substrates. We recommend to run preliminary tests to optimize conditions for the particular application.
Properties
- Flame Rating
- Cured Properties
- Uncured Properties
- Properties
- Flame retardant (meets UL 94 V-0)
- Adhesion on cast magnesium.
- Note
Curing Conditions: 14 days at 23°C and 50% rel. humidity, 2 mm sheet, no post-curing.
| Value | Units | Test Method / Conditions | |
| Density (at 23°C) | 1.23 | g/cm³ | DIN EN ISO 1183-1 A |
| Elongation (at break) | 200 | % | ISO 37 |
| Shore Hardness A | 45 | — | DIN ISO 48-4 |
| Tensile Strength (Type 3, at 23°C, 2mm) | 1.5 | N/mm² | ISO 37 |
| Value | Units | Test Method / Conditions | |
| Density | 1.2 | g/cm³ | DIN EN ISO 1183-1 A |
| Dynamic Viscosity (at 25°C, Shear rate 0.5 s⁻¹) | 250000 | mPa·s | DIN EN ISO 3219 |
| Dynamic Viscosity (at 25°C, Shear rate 25 s⁻¹) | 150000 | mPa·s | DIN EN ISO 3219 |
| Extrusion Mass Flow Rate (3mm nozzle, at 23°C, 0.21 N/mm²) | 10 | g/10s | — |
| Skin Formating Time (at 23°C, 50% r.h) | 15 | minutes | — |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Note
ELASTOSIL® N 2189 releases during cure a total 3% alcohol. These vapors should not be inhaled for long periods or in high concentrations. Hence good ventilation of the works place is necessary.
Packaging & Availability
- Country Availability
- Regional Availability