Earlex Viscosity Cup (Ford #4)
This viscosity cup from Earlex is used to measure the viscosity of paints and finishes prior to spraying. Just submerge it in your coating, lift it out, and time how long it takes to drain. Add the appropriate thinner until you reach the correct drain time for your spray needle. This simple process is an invaluable step toward ensuring a flawless finish. Compatible with all Earlex spray station models.
|Manufacturer Part Number||0153165|
For materials that require thinning to spray properly, check the can to see if there is a suggested viscosity for HVLP, if not, it's up to you to find. There are many charts online that will give you a range of viscosity for different materials, but the truth is, your situation is different than mine.
If I'm at 80F degrees, 5 stage turbine with a .08mm needle set. My viscosity will need to be different than yours at 68F degrees, 3 stage turbine, 1.5mm needle. But let's not turn this into rocket science. Try spraying without thinning, doesn't work? Thin 5% until it does. Use the viscosity cup to record the thickness until you get it right, then you'll always know your target.
I'll be more specific. Latex paint with the 2.5 should spray, but will leave a roller like texture, with the 1.5 you should thin latex 5-10% with water and it will leave a nicer finish. For a fine finish with latex, also add a flow agent.