Manolo11 Posted April 25 Posted April 25 I try to roll a magnesium composition (so I can't use water) that contains about 8% phenolic resin and PVB. I use methanol to wet the composition. When I use 1.5% PVB the composition does not roll and when I use 3% PVB the composition sticks to the walls of the star roller. Can somebody help me?
Richtee Posted April 25 Posted April 25 (edited) Hmmm..what about dusting the roller barrel with pulverone/fine BP? Be a prime and maybe help with the sticking... like flouring the bowl to mix a dough? Edited April 25 by Richtee
Richtee Posted April 25 Posted April 25 Also, perhaps the comp is “melting” your roller barrel? Seems like an aggressive solvent ya got going. Or...maybe just 2% PVB
MadMat Posted April 26 Posted April 26 I have never tried to roll stars with phenolic resin in them. Every time I've used phenolic resin I have either cut or pumped the stars. To be honest, even though I built a small roller, I rarely use it. About the only time I use it is to make color changing stars.
Manolo11 Posted April 26 Author Posted April 26 12 hours ago, Richtee said: Hmmm..what about dusting the roller barrel with pulverone/fine BP? Be a prime and maybe help with the sticking... like flouring the bowl to mix a dough? I can't do that because it ruins the color.
Manolo11 Posted April 26 Author Posted April 26 4 hours ago, MadMat said: I have never tried to roll stars with phenolic resin in them. Every time I've used phenolic resin I have either cut or pumped the stars. To be honest, even though I built a small roller, I rarely use it. About the only time I use it is to make color changing stars. 12 hours ago, Richtee said: Also, perhaps the comp is “melting” your roller barrel? Seems like an aggressive solvent ya got going. Or...maybe just 2% PVB My barrel is of stainless steel, I'll try 2%
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