3M PPS System
The PPS System is four parts that work together
to help a painter to measure ingredients and gain the ability to
spray at any angle without spilling paint or having the gun sputter.
One of my favorite reasons for using PPS is that there is no cup
cleaning when the painting is finished because the liner is trashed.
The four parts seen in picture #1 are the cup, liner, lid and adapter.
With the optional liner installed (#2) paint can be measured accurately.
The cup is installed (#3) on the gun and ready to spray.
The liner collapses (#4) as paint is used.
When finished spraying (#5) the gun and cup are separated.
The liner is disposed of (#6) and the cup is reused.
Because the lid on the cup can removed easily you can refill the
liner with more paint as many times as necessary.
Note: The measuring graduations seen on the cup are actually
on an optional cellophane insert slipped between the liner and
the cup. These inserts are inexpensive and can be used repeatly.