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  • Making Dimensional Recycled HDPE Stock for Projects

    i have discovered within my experimenting with HDPE that there is 4 basic types (formulations) in the HDPE family; Injected -5gal. Bucket type that flows when melted, Film - grocery bags and like that do not flow, Blown - milk jug and detergent type conntnainers that do not flow, extruded - shotgun shells that shrink into donut shaped rings the first time melted and do not flow. They all melt and react differently and most of the time you can mix but they all have to be clean. I have made up some really cool sheets using injected and extruded but they are strongest when you use one type or another. Yes in is is faster to just purchase new sheet material but to loose out on fun of experimentation and the excitement of taking material and manipulating it into another can be an art. It is ...see more »i have discovered within my experimenting with HDPE that there is 4 basic types (formulations) in the HDPE family; Injected -5gal. Bucket type that flows when melted, Film - grocery bags and like that do not flow, Blown - milk jug and detergent type conntnainers that do not flow, extruded - shotgun shells that shrink into donut shaped rings the first time melted and do not flow. They all melt and react differently and most of the time you can mix but they all have to be clean. I have made up some really cool sheets using injected and extruded but they are strongest when you use one type or another. Yes in is is faster to just purchase new sheet material but to loose out on fun of experimentation and the excitement of taking material and manipulating it into another can be an art. It is a joy to make things. It is like the difference between the knife maker who buys his knife blank and scales then formed his knife, and knife maker who uses fire, anvil and hammers to forge the steel into its intended product. Yes it is faster to just buy the blank and maybe in some cases could be cheeper but the experience for some manipulating materials and processes is a very gratifying and gives a great deal more artistic value and variety. Both are valued experiences but often the hard work put into a new experience can lead to great discoveries and greater knowledge of the material. Imagine if Thomas Edison or John Browning sat back and just said this is to hard I am going to sit back and wait for some other poor smuk to figure this out. The learning process is a personal one and not all want to learn all that they can about a material. I personally love process. I love the feel of a freshly sharpened tool that slices through the material cutting and shaping. I am a professional fabricator and have used many modern tools and machinery but the most gratifying is old school technologies and the skill that only comes from practice and experience.Great work and thanks for the information

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