I would like to degass the AS40 silicone.  it is the first time I use this Easycomp material.  

 I am using a VE115SV 1/4HP pump.  It seems that the silicone isn't degassing completely. 

could it be that the pump has to less power to degass?  the silicone starts to bublle, but doesn't make the self collapse. 

pix of a sample i made

and the finished result