Haze

Problem

Dulling of finished surface

Exudation to surface

Fine solvent pops

Microvoids

Fine Bénard cells

Solution

Use correct thinner

Check current catalyzation

Check the dry of previous coat

Stir material to ensure uniform product

Use retarder solvent

Hiding

Problem

Poor coverage

Show-through of dark lines at edges of profiles

Solution

Reduce amount of thinner in material

Mix material thoroughly before use

Increase / ensure correct film build

Sand sharp corners of profiles

Increase speed of solvent balance

Lifting

Problem

Wrinkling of the finish

Unevenness of the ripple effect on surface

Solution

Ensure correct system

Do not use weaker films under stronger

Apply thinner coat of topcoat

Apply heavier coat of sealer

Use weaker reducer

Ensure correct air movement and dry

Allow longer dry on previous coat

Ensure correct catalyzation

Use freshly catalyzed materials

Marring

Problem

Surface damage when scratched

Solution

Use freshly catalyzed material

Increase dry and cure of finish

Increase cure area to room temperature

Allow 14 days to obtain full cure with acid cure materials

Add silicone anti-mar additive

Follow manufacturers recommended shelf life

Add coalescing solvent to waterborne material to ensure good film formation

Mud Cracking

Problem

Fine cracks in surface of waterborne finish

Solution

Increase temperature of application area

Increase drying temperature

Add coalescing solvent under agitation

Increase substrate temperature

Orange Peel

Problem

Surface bumpiness or waviness

Orange peel effect

Poor leveling

Solution

Check and / or lower viscosity

Apply correct or thicker film build

Reduce dry spray or overspray

Increase atomizing air

Reduce fluid pressure

Check correct air cap

Use retarder solvent or rich thinner

Eliminate excessive air movement

Add silicone flow agent

Apply even stroke with spray gun at the correct distance from the substrate

Printing

Problem

Marks in finish after stacking

Solution

Increase dry time

Use freshly catalyzed materials

Do not dry or cure in cool area

Ensure correct catalyzation

Rub Up

Problem

Color change on disturbed area of finish

Flocculation of pigments

Solution

Reduce film thickness

Raise viscosity

Add thixotrope or thickener

Speed drying

Add dispersant

Add silicone additive to reduce surface tension