P
Porsche 356
Barry,
I am using SPI epoxy primer and activator that is 1.5 years old. When finished spraying the epoxy and tried to clean the mixing cup and gun I noticed that the acetone was not doing a good job of cleaning. There was a "greasey" residue left in the cup and in the brush I use to clean with. I ran the acetone through the gun and thought it was clean but on closer inspection after taking it apart I found a build up of gooy primer. My questions are is acetone the best cleaner for epoxy and why is the acetone not cleaning and what is the residue left behind. I can, after a lot of work get the gun and cup clean. Is this a sign that the activator is going bad. No sand in the paint appearance that has been suggested as a sign of bad activator.
Again thanks for all your help
I am using SPI epoxy primer and activator that is 1.5 years old. When finished spraying the epoxy and tried to clean the mixing cup and gun I noticed that the acetone was not doing a good job of cleaning. There was a "greasey" residue left in the cup and in the brush I use to clean with. I ran the acetone through the gun and thought it was clean but on closer inspection after taking it apart I found a build up of gooy primer. My questions are is acetone the best cleaner for epoxy and why is the acetone not cleaning and what is the residue left behind. I can, after a lot of work get the gun and cup clean. Is this a sign that the activator is going bad. No sand in the paint appearance that has been suggested as a sign of bad activator.
Again thanks for all your help