In 1977, Permastore established its custom-built glassing plant at Eye in Suffolk.  With the technology advancements over the years, in 2003 further substantial investment was made in the Eye Manufacturing Facility, introducing an innovative electrostatic pre-coat glass application plant further improving quality, consistency and the performance of the glass coatings.

Permastore teamed up with one of the world’s leading sealant manufacturers and co-developed a sealant specifically designed for water/wastewater applications – Sikaflex® - TS Plus.

In 1999, Permastore introduced the evolutionary 1400 series which incorporated the purpose designed “straight seam” 4 corner overlap joint system developed and designed specifically for liquid storage and successfully used in bolted tank design since the 1960’s.