Specification Brand : Polyvance BulletPoint1 : Works with airless, hot-air, and nitrogen plastic welders. BulletPoint2 : Rod diameter fits perfectly into the standard welding tip of Polyvance's Mini-Weld Airless Plastic Welder. Color : Gray ExternallyAssignedProductIdentifier1 : 0694687003289 ExternallyAssignedProductIdentifier2 : 694687003289 ItemName : Polyvance TPO Plastic Welding Rod, 1/8" Diameter 1 lb, Gray ItemPackageQuantity : 1 ItemTypeKeyword : arc-welding-rods Manufacturer : Polyvance ModelNumber : R05-01-04-GY OeManufacturer : Polyvance PartNumber : R05-01-04-GY ProductDescription : TPO (Thermoplastic Olefin) is sometimes referred to as TEO (thermoelastic olefin). TPO is a mixture of Polypropylene and a tiny amount of thermoplastic rubber, which gives the plastic better paint adhesion and flexibility. Olefin plastics are those waxy feeling plastics that tend to smear when sanded at high speed. They also tend to get "hairy " when you grind it, or saw it. It is used more and more often in automotive applications. Most plastic bumper covers are made from TPO. This package contains 1 lb (0.45 kg) of TPO welding rods. Each rod is 1 foot (30 cm) long by 1/8th inch (3 mm) diameter. There approximately 255 welding rods in 1 lb. (0.45 kg).