Chrome Yellow Remains Top Choice for Road Marking Paint

For decades, Middle Chrome Yellow (PbCrO₄) has been the go-to pigment for road marking paint, especially in hot-melt formulations. Its bright yellow color, excellent coverage, and weather resistance make it perfect for creating highly visible road markings that meet strict standards like China’s GB 5768 and America’s ASTM D713.

Chrome Yellow
C.I.NO. Pigment Yellow 34
CAS NO. : 1344-37-2

Why Road Marking Paint Still Uses Chrome Yellow

The pigment’s intense color stays bright for 2-3 years, even under harsh sunlight, rain, or de-icing chemicals. Unlike organic yellow pigments (like PY74), it doesn’t fade or turn white over time.

1.Chrome Yellow’s strong physical properties make it ideal for roads:

   Great coverage – Only 5-10% is needed in road marking paint

   Long-lasting – Hardness (2.5-3.0 Mohs) stands up to heavy traffic

   Heat-resistant – Works perfectly in hot-melt road marking paint (180-220°C)

2.Cost Keeps It Popular

At just 30-50 RMB/kg, Chrome Yellow costs 80% less than eco-friendly options like Bismuth Vanadate (200-300 RMB/kg). This big price difference keeps it in demand, especially in developing countries.