Simply SP-023 Clear Lacquer Varnish Gloss Aerosol Spray – For Use on surfaces treated & untreated on Metal, Aluminium, Glass, Stone & Various Plastics – 500 ml : Amazon.co.uk: DIY & Tools
Halfords Clear Lacquer 500ml | Halfords UK
E-Tech XHT Xtremely High Temperature CLEAR LACQUER Car Engine Exhaust