I read some posts from 2010 on StyroSpray 1000... I have used the product on 1 plane FRC Foamies Alpha Jet... The nose has a very hard surface with the product... I also covered the leading edges.. Being the first time using it I probably used a little too much... The knock on the product was that it may add too much weight... I had a discussion with Industrial Polymers (manufacturer) about how to reduce the weight factor... They suggested that I might use 3M Microballoons or Microspheres and it could reduce the weight by as much as 30%... The research I have done on the 3M product says it is a weight reducing filler for resins... I have ordered the 3M product and will report after I use it....