Effectively all glass fibres (e.g. C-glass and E-glass fibres and related types ) are manufactured using glass fibre bushings of PtRh alloys. In some cases, the dispersion hardened variants of these alloys are used.

Ravindra Heraeus produces glass fibre bushings to customer specifications with base plates manufactured using welded tips.

Bushing base-plates with pressed tips are free from welds which could become a weak point if procedures are not carried out correctly.

We also manufactures glass fibre bushings for extreme thermal and corrosive conditions such as arise in the processing of molten basalt. In addition to intensive process control during the production process, the finished bushings are subjected to a thorough inspection to ensure leak-tightness and conformity with all critical dimensional requirements.