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Acetal copolymer is a strong, rigid plastic the offers excellent dimensional stability and maintains its properties better than acetal homopolymer when exposed to hot water, hot air, and humid environments
Color is opaque black
Meets ASTM D6778 specifications
The opaque black acetal copolymer round rod has a standard tolerance and meets American Society for Testing and Materials ASTM D6778 specifications. Acetal copolymer is a strong, rigid plastic that offers excellent dimensional stability, enhanced by the material's moisture and creep resistance, and maintains its properties better than acetal homopolymer when exposed to hot water, hot air, and humid environments. The material has a low-friction surface and excellent abrasion resistance.
Plastic refers to a group of synthetic or semi-synthetic materials that have been engineered to achieve specific properties. The most notable characteristics of plastics are its low weight, machinability, corrosion resistance, and typically good thermal and electrical insulating properties. Certain plastic grades also offer optical transparency similar to glass, low-friction or self-lubricating surfaces, and exceptional impact resistance. Depending on their properties, certain plastic grades can be used as alternatives to metal, glass, and ceramic. Unlike metal, plastic may experience creep, which is deformation caused by longtime exposure to a constant load.
Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Corrosion resistance describes the material's ability to prevent deterioration caused by atmosphere, moisture, or other medium. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Impact resistance is the measure of a material’s ability to absorb a shock of energy before breaking.
Most Helpful Customer Reviews
Whatever lenght you order you will get roughly half an inch under it. I guess that's a good way to make their stock last but keep that in mind when you order. I ordered a 24 and 36 inch bar and both were roughly an .5 - .75 short
Good price on the acetal (delrin) rod. You can buy delrin (acetal) bushings from various places, but they are pretty expensive. I made my own bushings using a lathe and they are just as good, and a lot less $$$, as any that I could buy. I made frame end shackle bushings for my Suzuki Samurai, to stabilize the shackles/axle. Before, the axle would shift under the vehicle when I turned the steering wheel and/or was in off-camber places. But after I made the acetal bushings, the axle stays in place and the steering is greatly improved. I also saw no loss of flex in the suspension, after making/installing the acetal bushings. I also bought a rod of nylatron at the same time, and have made shackle bushings out of it too. I prefer the acetal/delrin, over the nylatron. The acetal seems to be a stronger product, even though I haven't had any issues with the nylatron.
Used this to turn out AR/M4 take-down tools. Derlin has shown the best material for this project. Cut the rod into short sections & turn on lathe to correct diameter for punching out take down pins & pivot pins. The opposite end, I file to shape like a flat blade screwdriver to be used as a light scraping tool that doesn't mar. I then drill a hole near blade end for attaching to keyring. Machines well at proper speeds. Works well for my applications.
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