Canvas tarpaulin It is manufactured as per Indian standard IS: 680383. It is prepared mainly by applying light weight coat of pure chemical coat on pretreated like scouring, bleaching, dyeing of cotton canvasduck. It is 100% water repellent and rot proof (optional), light in weight than wax- coated tarpaulins, shrink proof, less durable water proof than wax- coated canvas, breathable, available in various colors, bio degradable.