Polyflex Light contains a unique organic compound which is added to the Polyurethane and attracts airbourne moisture to create a continuous circut that removes stattic build upas product moves through the duct. Polyflex Light does not lose its antistatic properties as it wears and the helix does not require grounding. it is antistatic @ < 108 OHMS, good abrasion resistance, excelent flexability and good compression ratios. resistand to oil and petrol fumes. Clear in colour