Fill and wipe

Printing processes suitable for PP include pad transfer, screen printing, laser printing, dyeing, and fill and wipe. Due to the non polar nature of PP, the choice of primer or surface treatment is very crucial for printability and paintability. 

To fill a measuring or serological pipette, draw the solution to just above the volumetric level, then let the solution fall to the calibration mark. Remove the pipette from where you drew the fluid, and wipe the tip with a laboratory tissue to remove any excess solution from the outside of the pipette so that it is not included with the calibrated liquid. 

Check pretreatment process use clean solvent and wiping rags. Wiping rags must not be made from synthetic fiber. Make sure cleaned parts are not touched before bonding. Cover stored parts to prevent dust from settling on them Replace resin. Check solids content. Clean resin tank Check for distortion correct or discard distorted components. If distorted components must be used, try adhesive with better gap-filling properties... 

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