Knowde Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Technologies
- Product Families
- Chemical Base
- Mixture of organic substances.
Features & Benefits
- Key Attributes
SCHWEGO inhibitor 6817 is used to compensate poor preparation of the substrate and unsatisfactory painting conditions:
• Manual derusting (residues of rust / flash rust)
• Unfavorable weather conditions, e.g. damp surfaces
• Careless preparation of the substrate e.g. traces of grease
• Difficulties caused by type of construction or location, e.g. rest rust
SCHWEGO inhibitor 6817 converts residual rust into stable and non-corroding iron organic complex and provides long term protection against corrosion. SCHWEGO inhibitor 6817 ensures good penetration of the residual rust, thus adhesion is promoted. If SCHWEGO inhibitor 6817 is used as pre-treatment for corroded steel surface reaction time is about 3 hours. It is not necessary to wash the surface with water after reaction.
The effectivity of SCHWEGO inhibitor 6817 is observable by a blue to black discolouration of the substrate. After appereance of this discolouration the new coating layer can be applied.
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Processing Information
- SCHWEGO inhibitor 6817 is used indiluted as a pretreatment product. The surface has to be prepared. Loose rust, fat, dirt as well as with rust infiltrated coating residues are to be removed by means of steel brush, grinding wheels etc. On the residual rust SCHWEGO inhibitor 6817 will be applied by the typical method like paint brush, roller and so on.If SCHWEGO inhibitor 6817 is used in a coating the optimum dosage is between 3.0 - 5.0%, calculated on the system. The best incorporation of SCHWEGO inhibitor 6817 is after the pH-value adjustment of the paint. SCHWEGO inhibitor 6817 has an influence on the pH-value.SCHWEGO inhibitor 6817 should be applied correctly onto the pretreated surface. In contact with remaining coating surfaces discolourations may occur. Hence, SCHWEGO inhibitor 6817 should be washed away with water or suitable solvents.When using SCHWEGO inhibitor 6817 in a coating, yellow discolourations may occur and also drying time may increase. Therefore, siccatives should be adjusted. The use of SCHWEGO inhibitor 6817 in pastel colored paints should be tested beforehand. To recoat a water based coat containing SCHWEGO inhibitor 6817 with solvent based coatings should be tested by laboratory trials.To test the activity of SCHWEGO inhibitor 6817 it is necessary to use pre-rusted test panels and to carry out accelerated weathering. The salt spray test does not correlate with outdoor weatering and should not be used.The spreading rate of purely applied SCHWEGO inhibitor 6817 is about 5 - 10 m². The spreading rate mostly depends on application method and the condition of the substrate.
Properties
- Physical Form
- Appearance
- Turbid, light-yellow liquid
Packaging & Availability
- Packaging Information
- 50 kg / 175 kg drum
Storage & Handling
- Shelf Life
- 12 months
- Storage and Handling
- Do not store SCHWEGO inhibitor 6817 at temperatures below 0 °C. Stir it up before use. Keep it in a cool, well-ventilated place. Subjected to appropriate storage, the described properties of SCHWEGO inhibitor 6817 remain stable for at least 12 month, provided the original container is closed after use.