Articles

In modern foundry technology, the use of refractory coatings specifically designed for expanded polystyrene (EPS) patterns and cast iron castings is essential to ensure surface quality, protection, and operational safety.
The POLYTEX line by Jodovit stands out for its versatile applications and high performance, meeting the needs of both the lost-foam process and cast iron finishing operations.

Main Applications

EPS Patterns
Used in the lost-foam process, POLYTEX coatings protect EPS patterns from molten metal, providing thermal insulation and improving the surface finish of the final casting.

Cast Iron Castings
When applied directly to castings, these coatings enhance surface appearance, increase corrosion resistance, and extend the service life of components.

Key Technical Features

The POLYTEX Range

POLYTEX 525 – Specific for lost-foam aluminium casting
• Silica-based, highly permeable for rapid gas evacuation
• Red-brown color, creamy and thixotropic consistency
• Recommended application: dipping 

POLYTEX 350 – For EPS patterns and large cast iron components
• High density (80–85 °Bé), excellent coverage and versatile application
• Suitable for brush, spray, or flow coating 

POLYTEX 250 – Optimized for flow coating on EPS used in cast iron production
• Dense consistency, high solids content
• Ideal for complex geometries and thick sections 

Why Choose POLYTEX Coatings?

✔ Enhance casting quality
✔ Protect surfaces from oxidation and wear
✔ Easily integrate into existing production cycles
✔ Developed and tested in collaboration with partner foundries 

Jodovit continues to invest in the development of innovative, high-performance solutions for the foundry industry, with a strong focus on technical results, operator safety, and environmental sustainability