Owens-Corning probably has the easiest to blow fiberglass on the market. They have developed a cube material that breaks up very easily and conditions well.
What about Owens Corning?
The 1930s was a time of innovations in various aspects of building construction and materials. Corning Glass partnered with Owens-Illinois to produce the first ever line of glass fiber insulation in the US market. The year was 1935 and by 1938, the Owens-Corning Fiberglas ® Corporation has been a leading and major manufacturer of fiberglass insulation. More