Alcohol based coatings
Due to its versatility, VELVACOAT is an ideal coating for multiple applications and metal types. It was engineered specifically to mitigate burn-in and penetration defects. Additionally VELVACOAT coatings provide excellent casting surfaces. They can be used for multiple applications.
Benefits
- Fewer casting defects and excellent casting surfaces
- Very fast drying and flammable
- Available in cooler burning formulations
- Universal coating
Highlights
Avoiding burn-in defects
The superior refractoriness of VELVACOAT coatings for iron and steel castings makes it an exceptional solution for avoiding burn-in defects. VELVACOAT prevents the chemical reactions that cause this defect. VELVACOAT is a highly protective barrier between sand and molten metal.
Zircon-free coatings for heavy iron and steel applications
ASK Chemicals has developed an innovative zircon-free refractory combination for heavy and thick-walled iron, as well as steel castings. In such extreme applications, it provides the same or even better casting results as achieved with coatings containing zirconium. Two key advantages of zircon-free coatings include low density and material handling.
Metallurgicial coatings and sulphur stop
New types of refractory coating formulations, which bind the forming SO2 or suppress its transport from the acid cured No-Bake sand system, prevent the degeneration of graphite.
Alcohol-based
| Product name | Application | Method of application | Characterictics |
|---|---|---|---|
| Velvacoat ST 701 | For cores and moulds produced by no-bake, cold-box and CO2 processes, for steel, iron and heavy metal casting | brushing, spraying, flooding, dipping | Coating on zirconium silicate basis |
| Velvacoat ST 802 | For cores and moulds produced by no-bake and CO2 processes, for manganese steel, grey iron and metal casting | brushing, spraying, flooding, dipping | Coating on magnesite basis |
| Isotec Z 35 Coating | For cores and moulds produced by all resin sand binder systems, for steel and iron casting | brushing, spraying, flooding, dipping | Coating on high purity zirconium silicate basis |
| Velvacoat ST 603 | For cores and moulds produced by no-bake, cold-box and CO2 processes, for steel, grey iron and heavy metal casting | brushing, spraying, flooding | Coating on aluminium oxide basis |
| Velvacoat HI 704 | For cores and moulds produced by cold and gas curing methods for grey iron, nodular as well as heavy and light metal casting | brushing, spraying, flooding, dipping | Coating on zirconium-ceramic basis with graphite and iron oxide components |
