To test our sailcloth against Hydra-Net, we acquired a piece of Hydra-Net Radial 393 from a sailmaker who was originally supplied from Dimension Polyant in the United States.

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Strips of 2" by 18" were cut from this sample, as well as from ours. Jaw width of the testing machine was set to 16". A pre-tension of 14 - 16 N was applied manually, when mounting the strips, and the exact pre-tension was later deducted from each measurement, in order to show true results. A test speed of 20 mm per minute was used. 

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Of the standard test directions, weft, warp and 45 degree bias, 3 strips were tested and the results shown are an average of these 3 samples. For all other directions only one strip was tested.

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