Mops Yarn & Accessories Data Sheet Longer lasting and better performing! Ultra pure yarns 100% select cotton yarn for superior application performance. Best value Unlike overpriced glass mops, white yarn provides superior value with great performance, while blue yarn offers a cost-effective option for asphalt applications. Reliable packaging Boxed for easy warehouse handling and to stay dry at the jobsite. Superior durability Unlike polyester mops, will not degrade prematurely. Complete product line Includes a wide variety of mop heads, adaptors, and handles.