PU material for athletic track &field The environmental protection andstrong sticks , ... inspection. Confirm that climate conditions are right, cant construction under rain and the temperature construction below 8 °C and two big ... size to be 0.5~1.5 mm; Two-component PU 2:1 material ratio is 2:1, EPDM granule and ... town ,Jiangyin ,Jiangsu ,China ,214411 Tel/ Fax:+86-510-86315308 PU 1:2 track spray coating