Density of GEL-LAY and LAYWOO 3D print material? I'm looking for the specific density of the GEL-LAY and LAYWOO 3D materials by manufacturer CC Products.

It isn't noted on their website or on the spool or the box the spools came in. I've looked for hours on Google and various websites, from resellers to people who tested it, without being able to find it.
I can't provide the end answer, but if you already have the material, you should be able to measure this yourself quite simply.

Measure and cut a sample of filament, and weigh it. For example, a 10 meter length with a 1.75 mm diameter will have a volume of:


  v = pi * r2 * l
  
  v = pi * (0.175 cm/2)2 * 1000 cm
  
  v = 24.05 cm3


Density is mass divided by volume. If your sample weighs 18 g, this would be


  d = m / v
  
  d = 18.0 g / 24.05 cm3
  
  d = 0.748 g/cm3


Note that the accuracy of this measurement will depend on the accuracy and precision of your measurements. A household kitchen scale might not be good enough for such small weights. In order to get a good weight measurement, you may need to use a much longer (and heavier) sample of filament.