My parents have a Graco 190ES paint sprayer they use once in a blue moon. I have the sprayer stored and protected with a mix of paint thinner and a shot or two of whatever motor oil I have on hand. Solvents evaporate and I need to redo the job again this weekend as I noticed the bucket holding the paint thinner/oil mix is just barely covering the pickup screen on the pump's inlet.
I know Graco has their own protectant - Pump Armor but the SDS shows that it's like non-silicated antifreeze with ethylene glycol, dipotassium phosphate and sodium nitrite. It's close to Toyota's red coolant without the OAT. Some people use RV antifreeze to store their paint sprayers.
Since I have a uncomfortable feeling my dad will carelessly use the sprayer without a water purge to flush out the solvent/oil storage solution and I have a gallon of Toyota red coolant left over I might just use that to store the sprayer and all that needs to be done before spraying is to flush the pump. I'll use a 2 gallon bucket with a hole drilled in the lid to prevent an accidental spill or poisoning. If I can find a cap that has the same threads as the inlet screen, I can simply turn the sprayer upside-down and fill it with the storage solution and seal it.
Will this work or just stick to what I've been doing with the paint thinner and oil?
I know Graco has their own protectant - Pump Armor but the SDS shows that it's like non-silicated antifreeze with ethylene glycol, dipotassium phosphate and sodium nitrite. It's close to Toyota's red coolant without the OAT. Some people use RV antifreeze to store their paint sprayers.
Since I have a uncomfortable feeling my dad will carelessly use the sprayer without a water purge to flush out the solvent/oil storage solution and I have a gallon of Toyota red coolant left over I might just use that to store the sprayer and all that needs to be done before spraying is to flush the pump. I'll use a 2 gallon bucket with a hole drilled in the lid to prevent an accidental spill or poisoning. If I can find a cap that has the same threads as the inlet screen, I can simply turn the sprayer upside-down and fill it with the storage solution and seal it.
Will this work or just stick to what I've been doing with the paint thinner and oil?