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  •  The minium order for one supplies is from 100-150kg. 

  •  When ordering, describe the technical characteristics of the glass (CTE, temprature resist), glass grade or other technical spesification.

An exemple: Granular powder (CTE=4.9, T=-70°..+550°C) 150kg or your other characteristics.

  • The warranty period is established for one year from the date of dispath of the product to the consumer enterprise.

  Designed for the manufacture of preform for glass to metal seals in semiconductor devices or connectors, our company PROMSYSTEMS uses personal press powder (granular glass powder) .

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  The method of preparation of glass-based press powder is the intellectual property of the enterprise since its inception. For its preparation, only high-quality components are selected from those offered on the market. The glass used for the preparation of the press powder meets the requirements of ISO:9001 in terms of chemical composition and physical and chemical properties .

As part of the press powder, the content of iron oxide should be no more than: for glasses

G0025, G0048-50 = 0.4%; G0052-54, G0074-76 and G0091-93 = 0.55%; 

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  • The powder in terms of particle size distribution and color, depending on the brand of glass, must meet the requirements specified in the table.

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