Vallejo Model Color 200 ml Polyurethane Primer - USN Light Ghost Grey : Amazon.co.uk: Toys & Games
Spray Primer: Grey Seer
Light Grey Primer 250ml Airbrush Ready - New and Improved | ZP-3034 | Zero Paints
Vallejo 200ml Surface Primer White Grey Black Acrylic Model Air Brush Spray | eBay
Mission Models MMS003 30ml (1oz) Grey Primer
Tamiya | Surface Primer Plastic and Metal (Grey) £5.75
Matt, No.1 - Grey Primer – The Model Shop Portsmouth Ltd
Vallejo grey primer - stops your metal models chipping and helps paint stick. Also helps to apply bright/light coloured paints as a basecoat. Because it's runny it allows for rapid coverage yet
Vallejo 200ml Surface Primer White Grey Black Acrylic Model Air Brush Spray | eBay