Foundry Grade Perlite
Foundry Grade Perlite for Slag Removal
TurkPerlite supplies foundry-grade unexpanded perlite used as a mineral slag remover and slag coagulant in steel, iron and non-ferrous metal casting. When applied to the molten metal surface, the material helps coagulate the slag into a removable layer so that the metal can be cleaned before casting.
In ladle topping applications, granular unexpanded perlite is added to pouring ladles for slag removal and thermal insulation. The perlite layer assists slag separation while forming an insulating cover that helps limit heat loss. When introduced during ladle filling, the material can promote a gentle rolling action that brings impurities together for removal. Perlite does not create objectionable smoke or noxious fumes under normal application conditions.
Perlite is added to foundry core and molding sand mixtures as a cushioning agent to compensate for the expansion of crystalline silica as it goes through phase changes at temperatures in excess of 1000F (540C). Casting defects such as buckles, veining, fissuring and penetration are minimized and cleaning room costs are reduced. In addition, perlite improves permeability of core sands thus reducing defects attributable to poor venting.
Slag Removal and Foundry Benefits
Foundry-grade perlite supports rapid slag coagulation, easier slag removal and cleaner molten metal handling. It can also serve as a ladle-topping and insulating material, while its use in core and molding-sand mixtures can improve permeability and help reduce defects associated with poor venting, veining and penetration.
TurkPerlite supplies foundry-grade perlite and slag-removal material to foundries, importers and distributors in India and other international markets. For product selection and quotation, specify the metal type, intended slag-removal or ladle application, required particle size, packaging, monthly quantity and destination.
For general mine-source and graded unexpanded products outside foundry applications, review our perlite ore and raw perlite pages.
Main Foundry Applications
Foundry-grade perlite is used for slag coagulation and removal, ladle topping, thermal cover and selected core- and molding-sand formulations. The required grade depends on the metal system, operating temperature, addition point, handling method and the balance sought between rapid slag capture and insulating coverage.
Selecting the Appropriate Foundry Grade
Particle-size distribution, bulk density and moisture should be matched to the intended process. Product selection should be confirmed by controlled foundry trials under actual operating conditions; buyers should provide the metal type, furnace or ladle application, dosing method, preferred packaging and monthly consumption when requesting a recommendation.
Foundry Perlite from Turkiye
TurkPerlite supplies graded unexpanded perlite for international foundry requirements. Specifications, packaging and shipment planning can be reviewed before quotation so that the proposed material is aligned with the customer's process and destination.
