Permanent Ventilation Seal is a patented product developed specifically for underground mining ventilation application in the mining sector. Biziwe Permanent Ventilation Seal is manufactured locally at our manufacturing facility in Rustenburg, and represents the main focus of our business. Our product was fire tested by the South African Bureau of Standards and boasts a SABS Class1 Product Rating as well as achieving a 0.07 rating during SABS test. The Permanent Ventilation Seal was also Fire Lab Approved.

Permanent Ventilation Seal is designed to be installed as a permanent fixture in underground areas with a height ranging from 1 meter to 3 meters and length varying from 1 meter to an excess of 15 meters. It will form a vital part of the ventilation control system. Preventing the loss of airflow to a particular section by forming a contour hugging airtight seal in between pillars, strike gullies, pillar holing, traveling ways, cross cuts and box holes aiding the directional flow of fresh air to work areas. A secondary function of Permanent Ventilation Seal is restricting access to “mined out” sections by means of the steel reinforcing used to provide structure rigidity acting as a human barrier.