SOTABeams have announced a new range of insulators made from modern high-performance material to provide good quality antenna insulation.
Two types are available: a ribbed centre or end insulator and an open wire line insulator for high Z low-loss lines.Both are lightweight and strong. They are suitable for permanent as well as temporary installations.
Ribbed Insulators - http://www.sotabeams.co.uk/insulators-end-or-centre/
Open Wire Line Spacers (long) - http://www.sotabeams.co.uk/open-wire-line-spacers-long/