Which type of sign is most suitable?

	Forex	Perspex	Aluminium	GRP	Steel
Internal applications	√ any	√ any	√ any	√ any	√ any
External applications	√ any	√ any	√ any	√ any	√ any
Hidden side fixings			√ trays only	√ any	√ individual letters
Wall-mounted	√ any	√ any	√ any	√ any	√ any
Post-mounted			√ any	√ any
Illuminated	√ any	√ any	√ any	√ any	√ any
Internally illuminated			√ individual letters		√ individual letters & light boxes
Applied to vehicles		√ cast vehicle vinyl
Projecting	√ on hanging rail	√ on hanging rail	√ panels	√ on hanging rail