The NOVANOL system is a core manufacturing method with alkaline-condensed phenolic resin binder that is cured through gassing with CO2.
The NOVANOL method offers the following advantages:
- Good final strength values
- Excellent casting results, even without coating
- Largely solvent-free; only very low emissions during manufacturing and storage of the cores
- No gas washer required
Possible limitations of the method we feel are important to mention:
- Unsuitable for light alloys
- Low initial strength values, unsuitable for complex core geometries
- Unsatisfactory disintegration in light alloy casting
- Highly alkaline sand, waste sand regeneration currently still possible with restrictions
Here, the following metals and plastics are resistant to NOVANOL resins:
- Hard polyethylene
- Polypropylene
- Teflon
- Gray cast iron
- Stainless steel
- Fiberglass-reinforced plastics
Aluminum, copper and zinc-plated metals are not resistant.