Techaids offers Plastic Sleeves with Poly Amide Resins. Techaids is an ISO 9001:2000 awarded company. The Plastic Sleeves with Poly Amide Resins are used for calendering and one sided embossing. It is also used for linear loads up to 350 kg/cm and metal roll temperatures up to 210ÂșC with working speed up to 200m/min. These are extremely hard and therefore mark resistant and are based on poly amide resins.