Sepia is the oil no modeller should be without. Thinned with a matte medium it mimics dry oil and diesel stains convincingly, and neat from the tube it's superb for running panel lines and picking out fine detail on small parts. Warm rather than cold, it's the shade you reach for when a wash needs some character instead of flat black.

Best for

• Dry oil and diesel stains on engines, tracks and undersides
• Panel lines, rivets and recessed detail
• Warm-toned washes and filters where black would look dead

One of those tubes that ends up in nearly every project once you've tried it.

A warm, everyday essential for detail and grime.