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Oz is the weight of the fabric per a cut yard. Higher oz means a more dense fabric. A layer of this fabric This fabric’s density is 3.8oz8 Oz/yd^2.
The fabric is 36” wide. Hence, a layer of this fabric is 36” by 1 yard.
1K means that each tow/strand of carbon fiber has 1000 filaments of fiber. Higher K value means thicker strands.
Plain Carbon tells you the type of weave of the carbon fiber. The weave pattern affects the strength of the carbon fiber, stability, and how formable it is.
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