PU material for athletic track &field The environmental protection andstrong sticks , ... surface of the place, and fill flat, flattened, sweep clean. Trim all the joint with knife Equipment inspection. Confirm that climate ... 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