SANDING & FINISHING
Problem: Pin holing
Causes: Insufficient and excessively dry spraying of the sub-
strate. Excessive application at high temperature or on heated
substrate. Porous substrate (fiberboard, particleboard, etc.).
Solutions: Rub down the defective surface. Check viscosity
of the coating. If necessary, use a slower thinner. Introduce
other changes/measures to inhibit pin holing.
Causes: Defective or dirty air or fluid nozzle. Incorrect gun
settings. Conveyor speed and the guns transversal speed not
Solutions: Check and clean the nozzles. Check the spray gun
positions and spray fan. Synchronize the conveyor and transversal
Problem: “Blue” corners
Causes: Edges too sharp. Viscosity too low. Corners sanded
through when sanding primer.
Solutions: Increase the radius of the corner. Increase viscosity. Use a less coarse sandpaper when sanding the primer.
Problem: Gloss and tone variations
Causes: The jaws of the curtain coater are not parallel, applied
amount uneven. The curtain is moving forward and backward
when coating, which results in an uneven application amount.
Solutions: Adjust the jaws so they are parallel. Shield the
curtain from air movements.
Problem: Sagging on edges
Causes: Too high conveyor speed. Coating – thinner not optimal
Solutions: Decrease the conveyor speed. Contact supplier.
Common finishing problems & solutions
“The Solution For Finishing Doors!”
Spray both sides of a door simultaneously and rack it
“Horizontal” or “Vertical”
Welcome to Fast Rack Equipment.
We are pleased to offer you a whole new world
of finishing possibilities. Our professional
grade equipment will save time and labor costs
while increasing productivity.
Stop By Booth #8240
INFO@VERYLAK.COM 1 800 604 7281 VERYLAK.COM
PROFESSIONAL WOOD COATINGS FOR INDUSTRIAL USE
FOR MORE INFORMATION ON OUR PRODUCTS, CONTACT
ROB HECKARD, GENERAL MANAGER : RHECKARD@VERYLAK.COM
HEAD OFFICE : 116 LO WES FOODS DRIVE #113, LEWISVILLE, NC 27023
POLYES TERS &