Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
- Composition
Smectite clay with quaternary alkilammonium salt.
Features & Benefits
- CASE Ingredients Features
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Adhesive & Sealant Type
- Coating Type
- Ink & Toner Type
- Applications
LAVIOSA VISCOGEL™ S7 is used in a wide range of manufacturing processes for anti-corrosive paints, antifouling paints, industrial finishes, foundry mold paints, printing inks, cosmetics, adhesives and mastics to give the desired rheological control to the system. It shows particularly good performance in solvents like aromatics, cellosolve, acetates, ketones, glycols and alcohols and resins like epoxies, nitrocellulose, polyacrylates, polesters, polyurethanes and polyvinyls.
INCORPORATION
LAVIOSA VISCOGEL™ S7 belongs to the conventional type of organoclays group, which requires mechanical energy, shear forces applied with a good dispersion equipment, and a chemical (polar) activator to reach the proper level of delamination of the organobentonite platelet stacks. While heat is not essential in most cases, processing temperatures above 20°C are preferred. Suitable polar activators are low molecular weight alcohol. Propylene carbonate can also be used.
Several methods can be used to incorporate LAVIOSA VISCOGEL™ S7:
1. The “direct add” technique. LAVIOSA VISCOGEL™ S7 is added directly in powder form to the solvent/resin mix, before pigment addition and milling.
2. The “pregel” technique. LAVIOSA VISCOGEL™ S7 is pregelled as described above in a suitable solvent at a 5-10 % concentration, with a polar activator. The activated gel is then added to the binder solution and stirred. After pigment addition the mix is finally milled.
- Dosage and Storage Stability
Level of addition strongly depends on the type of system and on the degree of thickening or other properties desired. For house and industrial paints, typical levels are between 0.2 % and 0.6 % of LAVIOSA VISCOGEL™ S7. For primers and printing inks, higher levels are required (0.5-1.0 %). For strong antisagging properties, up to 3.0 % can be used.
Storage is advisable in a dry, sheltered place in closed bags. Packing is 20 Kg net paper bags on wood pallets of 960 – 1,040 Kg each.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Bulk Density | 0.4 – 0.6 | g/cm3 | — |
| Moisture | 3 | % | — |
| Specific Gravity | 1.7 -1.8 | g/cm3 | — |
| METHANOL/H2O (95:5) | 33 | % | — |
| ETHANOL/H2O (95:5) | 50 | % | — |
| ACETONE/H2O (95:5) | 60 | % | — |
| PROPYLENE CARBONATE/H2O (95:5) | 33 | % | — |
| PROPYLENE CARBONATE | 33 | % | — |
Packaging & Availability
- Packaging Type
- Packing
Product do not deteriorate in a significant way in a 36 months period.