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“Engineered Shell Programs”
Engineered Shell Programs IMC distributes the Nalco Water products in Europe. We offer innovative Engineered Shell Programs and on-site service to help maximize the profitability for your investment casting foundry. Nalco Water's investment casting product line includes:
- Silice colloidal binders
- Engineered Shell Systems: Faster Dry times, Fewer Dips, less shell cracking, Improved casting surface finish, Optimized Total Cost of Operation
- Other process aids including wetting agents, antifoams and biocides
In addition to this extensive product list, we can provide service and support to improve your shell room operation. These capabilities include:
- On-site consulting and Continuous Process Improvement
- Process Control optimization
Colloidal silica
IMC provides LEVASIL® in 1,250-kilogram IBC containers. Levasil is produced by AkzoNobel and is available in the following grades:
| Type | 200A/30% | 300/30% | 4063 |
|---|---|---|---|
| Concentration | 30 % | 30 % | 30 % |
| Na2O content | 0,17 % | 0,35 % | 0,3 % |
| Specific gravity | 1.205 g/cm³ | 1.208 g/cm³ | 1.181 g/cm³ |
| Viscosity | max. 5 mPA-S | max. 7 mPA-S | max. 7 mPA-S |
| Storage stability | 18 months | 18 months | 12 months |
Ethyl silicate
IMC distributes ready-to-use pre-hydrolysed Silester® AR and Silester® XAR binders from Wacker Chemie. With their unique formulation, they give superior stability. Silester® AR and Silester® XAR binders are available in 850-kilogram IBC containers.
| Properties | Silester® AR | Silester® XAR |
|---|---|---|
| Specific gravity (20°C) | 0,92 g/cm³ | 0,92 g/cm³ |
| SiO2 content | 20 % w/w | 20 % w/w |
| H2SO4 acidity | 0,07 % w/w | 0,07 % w/w |
| Solvent | Ethanol | Ethanol/2-Propanol |
| Flash point | < 21 C° | < 21 C° |
| Freezing point | <-70 C° | <-70 C° |
| Shelf life | 6 months | 9 months |
Wacker® TES40 WN binder is an ethyl silicate providing approximately 41% silicon dioxide (SiO2) upon complete hydrolysis. TES40 WN is available in 1,000-kilogram IBC containers and a 15-ton tank.
| Properties | Silicate TES 40 WN |
|---|---|
| Specific gravity (20°C) | Approx. 1,06 g/cm³ |
| SiO2 content | Approx. 41 % w/w |
| Acidity (ppm HcL) | Max. 10 |
| Flash point | > 62 °C |
| Shelf life | 36 months |