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Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Industrial Additives Functions
Features & Benefits
- CASE Ingredients Features
- Product Highlights
- Dynasylan® SIVO 110 resembles a water-borne sol-gel system which does not contain organic solvents.
- It does not release alcohols upon hydrolysis contrary to standard functional alkoxysilanes.
- Dynasylan® SIVO 110 contains a high concentration of active silanol functions.
- Consequently it can chemically bond to surfaces of suited substrates and achieves a high degree of crosslinking by formation of 2- and 3- dimensional siloxane networks.
- During curing functionalized SiO2 nanoparticles align into a densely packed structure and are covalently incorporated into the siloxane network.
- This phenomenon serves as an explanation why exceptional hardness and scratch resistance can be achieved with Dynasylan® SIVO 110.
- Additionally a high degree of flexibility is obtained at a considerably low thickness fo the formed layers. Suited substrates: steel, stainless steel, Zn-galvanized steel, aluminum, glass.
- Dynasylan® SIVO 110 - based coatings exhibit a state of dryness of 5 (DIN 53150) once dried a room temperature for 20 min.
- Complete crosslinking (including reaction of silanol groups) will be reached at temperatures between a minimum of 150 °C and, ideally, 200 – 220 °C.
- Dynasylan® SIVO 110 is the base com- ponent of the first modular sol-gel system of the Dynasylan® SIVO series, and is derived from the successful Dynasylan® HYDROSIL product family.
- Following intensive development work, Evonik's researchers have succeeded in overcoming the earlier limitations of the Dynasylan® HYDROSIL system.
- As a water-based binder, Dynasylan® SIVO 110 represents the "backbone" of the series.
- Dynasylan® SIVO 110 is an inorganic resin and the platform of the first modular sol-gel system of the Dynasylan® SIVO series.
- It is a water-borne inorganic binder that includes inorganic particles with a narrow particle size distribution and is de-rived from the successful
- Dynasylan® HYDROSIL product family. It is ideal for the formulation of inorganic coating systems as well as corrosion protection primers.
- Dynasylan® SIVO 110 represents the “backbone” of the series, from which formulations with various functions are derived through formulation with diff erent additives.
- The additives, listed below, allow formulating stable, but still highly reactive, coatingssystems.
Applications & Uses
- Markets
- Application Method
- Application Characteristics
Dynasylan® SIVO 110 is suited as binder component in temperature crosslinking sol-gel coatings and sol-gel - based hybrid coatings.
Dynasylan® SIVO 110 coatings boast of:
- high hardness (“Bleistifthärte“ up to 5H, depending on formulation)
- excellent scratch and mar resistance
- superior stability in boiling water (Gt0 upon 2 h treatment in water at 100 °C)
- very good adhesion on various substrates
- very good adhesion towards organic top coats (e.g. epoxies)
- sound flexibility (“Dornbiegeprüfung“ according to DIN EN ISO 1519: 2 mm) l very low thickness of formed layers (recommendation: dry layer of < 2 μm)
- excellent resistance against solvents and other chemicals
Recommended areas of application:
- corrosion resistant primer systems
- transparent sol-gel top coats which exhibit a temperature resistance of up to 220 °C
- coatings comprising high hardness, which can be additionally improved by introduction of up to 20 wt.-% silica sol
- transparent easy-to-clean sol-gel - top coats upon adding
- Dynasylan® SIVO 112 Dynasylan® SIVO 110 containing formulations can be sprayed, dipped or applied with a doctor blade. It is recommended to orient towards a 0.2 - 2 μm thickness of the dry layer (approx. 4 μm of a wet layer equals approx.
- 1 μm of the respective dry layer). Hence the total quantity to be applied on smooth substrates will amount to approx. 5g / m2. Generally for spray application an aqueous dilution should be used (e.g. 20 wt.-% Dynasylan® SIVO 110, 0.06 wt.-% processing agent, 79.94 wt.-% water).
- Surfaces of treated substrates must be clean and free of grease and dust.
- Processing
- Dynasylan® SIVO 110 can be mixed with water at any proportion.
- Dilution in common organic solvents such as ethanol, isopropanol, butyl glycol or methoxy propanol is possible.
- Dynasylan® SIVO 110 can be formulated with a variety of water-thinnable binders and other auxiliary agents such as Tego® Wet 280.
- As of such e.g. a satisfactory compatibility with acrylate-based polymer dispersions has been achieved.
- Nevertheless, the final formulation must be checked towards possible incompatibilities such as phase separation or precipitation.
- Recommended procedures a.o. are storage or stress tests.
- Upon addition of acids and bases the pH value of Dynasylan® SIVO 110 can be varied between 4 and 9.
- These acid or alkaline additives must be selected with care as flocculation or gelation can occur in contact with certain substances.
- For neutralization Dynasylan® SIVO 111 is strongly recommended.
- For acidification phosphoric acid may be used.
- For achievement of easy-to-clean properties Dynasylan® SIVO 112 is highly recommended.
- Dynasylan® SIVO 110 must be protected against freezing temperatures.
Properties
- Appearance
- Opaque to milky. colorless to slightly yellow. low viscous liquid.
- Technical Data
| Value | Units | Test Method / Conditions | |
| pH | approx. 4.3 | — | DIN 19268 |
| Density | approx. 1.14 | g/cm³ | DIN 51757 |
| Viscosity | approx. 7 | mPa.s | DIN 53015 |
| Flash Point | min. 95 | °C | DIN EN 22719 |
| Color | max. 300 | mg Pt- Co/l | ISO 6271 |
| Solid Content | approx. 35 | % | 3g/2h 105°C |
| Boiling Point | approx. 96 | °C | ASTM D-1120 |
Regulatory & Compliance
- Chemical Inventories
Technical Details & Test Data
- Particle Size Distribution
- Dynasylan® SIVO 110 is a water-borne silane based binder with silane modified inorganic particles.
- A tight particle size distribution allows for the formulation of a wide range of coating systems.
- Upon curing, these coatings form a closed film that provides an excellent barrier to water and chloride.
- This system has been optimized for extended shelf life, excellent fi lm forming properties, and superior formulation possibilities.
- Especially the long shelf life is extraordinary for a water-borne sol-gel system.
- Dynasylan® SIVO 110 is the ideal starting point for water-borne sol-gel coatings and metal pre-treatment system.
Particle size distribution of Dynasylan® SIVO 110
Fig. Particle size distribution of the water-borne Dynasylan® SIVO 110 inorganic resin.
- In the pictures below, a formulation with Dynasylan® SIVO 110 was applied onto an aluminum panel.
- The scanning electron microscope images show the dense inorganic particle network formed by the silane binder.
Packaging & Availability
- Packaging Type
- Packaging Information
Dynasylan® SIVO 110 is supplied in 25 kg PE drums, 200 kg PE- inlined steel drums and 1.000 kg IBC containers.
Storage & Handling
- Shelf Life
- 12 months
- Storage Conditions
- Due to its water content Dynasylan® SIVO 110 must be stored above freezing temperature.
- Storage temperatures must not exceed +40 °C. In original sealed containers Dynasylan® SIVO 110 has a shelf life of min. 12 months from delivery.