GEKO® and ECOSIL®: Natural molding sand additives in precision castings
Unrivaled precision, smooth processability and easy shake-out for iron and steel castings: GEKO® is the effective booster for foundry productivity and perfect castings. ECOSIL® lustrous carbon former adds the finishing touch, ensuring easy mold separation, improved surfaces and increased mold stability.
Head of Business Group Foundry Additives EMEA
- Mechanical engineering
- Electrical engineering
- Construction industry
- Rail vehicle construction
- Steel industry
Combine high stability during foundry process with easy disintegration afterwards
To enable production of high-quality cast components and allow high-throughput rates.
Minimize toxic byproducts emitted during foundry process
To protect the health of the foundry workers as well as the environment.
Create high-precision casts
To minimize waste of material, time and money.
Natural clay mineral-based foundry bentonite GEKO® is made out of highest quality bentonite
It allows for highest mold stability during the foundry process, shorter mixing times and quick disintegration at knockout.
Blend of high quality foundry bentonite and lustrous carbon former
ECOSIL® increases the stability of the mold, improves casted product quality by helping to create smooth surfaces, and speeds up mold disintegration after casting. On top of that, it minimizes emission of toxic compounds.
MODE OF ACTION
Good fluidity and high elasticity of sand mold
The chemically activated foundry bentonite GEKO® deposits water molecules between the clay mineral layers, which have been expanded by the activation. It swells rapidly and thus has a good binding capacity to hold the casting mold’s grains of sand.
MODE OF ACTION
Easy separation of cast and mold
The lustrous carbon former component of ECOSIL® creates a very thin shiny carbon layer around the silica grains of the mold sand, facilitating the separation of the cast from it.
Clariant makes an important contribution to a quicker, more environmentally-friendly green sand casting process:
Shorter mixing time = high throughput
Low emmission technology
Smooth cast surfaces = high precision
Faster mold disintegration
Sustainable green sand additives
Having the highest productivity and being a good neighbour has never been this easy for foundries. Clariant’s two-tiered solution for a drastic reduction of BTEX emissions from green sand while maintaining high throughput, clean casting surfaces and low scrap rates.