Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
Applications & Uses
- Applications
- Application Area
- Cure Method
- Applications
- ELASTOSIL® - Ready-to-Use Construction Sealants
- Sealants
- Silicone Sealants
- Application Details
- Glass and windows construction
- Sealing of joints between glazing and supporting structure (frame, transoms, mullions).
- Industrial application as sealant in the automotive, aircraft and shipbuilding industries.
Processing
- Sealant must be clean, dry and free of all loose material such as dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and a clean, lint-free, cotton cloth. Remove residual solvent before it evaporates with a fresh clean, dry cloth.
- It is the user's responsibility to test the compatibility of the sealant with the adjoining materials. Incompatible substances like coating materials (paints, varnishes and glazes) or organic plasticizer containing rubbers (EPDM, butyl and neoprene) can lead to discoloration or other impairments like loss of adhesion of the sealant.
- Materials in direct contact with the applied sealant like cleaning agents and materials in indirect contact like gaseous emissions can damage the sealant in its function or change its appearance.
- Because of the multitude of these materials. Wacker cannot make a general statement to the compatibility of materials with the sealant. In case of doubt the user shall conduct appropriate preliminary tests. The time until complete curing may be extended at lower temperature, lower humidity, increasing film thickness or by low volume of air exchange. The use of tooling agents should be avoided if possible. Otherwise, water or a diluted solution of a little neutral soap or alcohol in water should be sparingly applied.
Properties
- Cured Properties
- Uncured Properties
- Properties
- 100% silicone
- Non-sag
- Ready gunnability at low (+ 5 °C) and high (+ 40 °C) temperatures
- Low shrinkage on curing
- Flexible at low (-40 °C) and high temperatures (+180 °C)
- Low-modulus: better adhesion and higher safety
- Rapid crosslinking: quickly becomes tack-free
- Adheres excellently to glass, vitrified surfaces, ceramic tiles, selected plastics and most coatings
- Excellent tooling properties
- Long shelf life
| Value | Units | Test Method / Conditions | |
| Elongation (at break) | 250 | % | ISO 8339 |
| Modulus (at 100 % elongation) | 0.35 | N/mm² | ISO 8339-A |
| Movement Capability | 25 | % | ISO 11600 |
| Shore Hardness A | 20 | — | ISO 868 |
| Tear Strength | 4.2 | N/mm | ISO 34, Method C |
| Tensile Strength | 0.6 | N/mm² | ISO 8339 |
| Value | Units | Test Method / Conditions | |
| Consistency (at 23°C) | Non-sag | — | ISO 7390, Profile U 20 |
| Density (at 23°C) | 1.02 | g/cm³ | ISO 1183-1 A |
| Extrusion Mass Flow Rate (at 6 bar, 23°C) | 450 | g/min | — |
| Skin Formating Time (at 23°C, 50% r.h) | 20 | minutes | — |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
- Quality Standards
- Restrictions in Use
- ELASTOSIL® 4000 must not be used for insulating glass applications.
- ELASTOSIL® 4000 should not be used on substrates such as marble, concrete, fibrous cement and mortar, as the product releases acetic acid during vulcanization.
- ELASTOSIL® 4000 should not be used in contact with metals such as lead, copper, brass or zinc due to corrosion.
- ELASTOSIL® 4000 may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
- ELASTOSIL® 4000 is not recommended for sealing of aquaria, please use our ELASTOSIL® 4300.
- ELASTOSIL® 4000 is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining.
- ELASTOSIL® 4000 is not recommended for structural glazing bonding.
- ELASTOSIL® 4000 is not recommended for sealing of aquaria or for longer-term use under water.
- ELASTOSIL® 4000 is not suitable for use as a mirror adhesive.
Safety & Health
- Safety Note
- During vulcanization acetic acid is released. These vapors should not be inhaled for long periods or in high concentration. Hence, good ventilation of the work place is necessary.
- When uncured silicone rubber come into contact with eyes or mucous membranes, the affected area must be rinsed thoroughly with water as irritation will otherwise be caused. Cured silicone rubber, however, can be handled without any risk to health. Keep away from children.
Packaging & Availability
- Country Availability
- Regional Availability