I am Kumarasiri B.A.L from sri lanka I am engaging Rubber pantation industry we have problem in collecting latex(rubber milk) from rubber tree .we normally use a plastic cup to collect rubber milk (latex) .The problem in plastic cup is the latex is wasting by ataching to plastic cup..I want a coating to prevent that attacment to latex.please send ta detail any one have a solution(proofing coating) for this