- Alligatoring
- Bleeding
- Blistering
- Chalking
|
- Checking(Line Checking)
- Checking(Micro-Checking)
- Cracking
- Fish Eyes
|
- Mildew
- Mottling
- Peeling |
- Pinholing
- Solvent Popping
- Wrinkiling
|
Alligatoring
Condition:
Patterned cracking in the surface of the paint film resembling the regular scales of an alligator.
Cause:
Application of an extremely hard, rigid coating, like an alkyd enamel, over a more flexible coating, like a latex primer.
Remedy:
 Old Paint should be completely removed by scraping and sanding the surface. A paint or substrate, The surface should be primed with a high quality, then painted with top quality Brighto All Weather. |
Bleeding
Condition:
A change in the color of the paint that results from the pigment, or the other colored material in the surface beneath the coating, moving upward into the applied film and becoming visible.
Cause:
1. Contamination, in the form of soluble dyes or pigments (especially red) , on the older finish before it was repainted.
2. Wrong thinner or reducer- too slow.
Prevention:
Thoroughly clean the areas to be painted before and after sanding. Especially when applying lighter colors over darker colors. Avoid using lighter colors over older shades of red without applying a sealer first.
Remedy:
Apply brighto sealer before reapplying the color coat. |
Blistering
Condition:
Bubbles or pimples that appear in the topcoat film, Sometimes months after application.
Cause:
1- Improper surface cleaning or preparation. Dirt left on the surface can act as a sponge and hold moisture. When temperature or atmospheric pressure increases, the moisture expands and builds up pressure, resulting in blisters.
2- Wrong thinner or reducer. Use of a fast-dry thinner or reducer, especially when the material is sprayed too dry or at an excessive pressure, can result in air or moisture being trapped in the film.
3- Excessive film thickness. insufficient drying time between coats or too heavy an application of the undercoats can trap solvents that later escape and blister the color coat.
Prevention:
1- Thoroughly clean the areas to be painted before and after sanding. Ensure all surfaces are dry before applying coatings. Avoid touching the cleaned area with your bare hands to prevent skin oil from contaminating the surface.
2- Allow proper drying time for undercoats and topcoats.
Remedy:
Apply brighto sealer before reapplying the color coat. |
Chalking
Condition:
A formation on the finish of pigment powder that is no longer held by the binder, producing a dull look.
Cause:
1- Wrong thinner or reducer affecting topcoat durability.
2- Poorly mixed materials.
3- Paint film too thin.
Remedy:
Remove surface in affected area by sanding. Clean and refinish. |
Checking(Line-Checking)
Condition:
Similar to cracking, except that the lines or cracks are more parallel and range from very short up to about 18 inches.
Cause:
1- Excessive film thickness.
2- Improper surface preparation.
Prevention:
Thoroughly clean the areas to be painted before and after sanding. Ensure the surface is completely dry before applying undercoats and topcoats.
Remedy:
Remove topcoat down to the primer and apply new topcoat. |
Checking(Micro-Checking)
Condition:
Appears as severe dulling of the film, but when examined with a magnifying glass, it contains many small cracks that don’t touch. Micro-checking in an indication that cracking or crazing may develop.
Remedy:
Remove the topcoat down to primer and apply new topcoat. |
Cracking
Condition:
A series of deep cracks resembling cracks in a dry pond. often going all the way thought the topcoat and undercoat.
Cause:
1- Excessive film thickness that magnified normal stresses and strains in the paint film.
2- Poorly mixed materials.
Prevention:
1- Allow sufficient dry time between coats.
2- Thoroughly mix all materials.
Remedy:
Sand the affected areas to a depth below the damage, and refinish. |
Fish Eyes
Condition:
Small crater-like openings in the finish.
Cause:
Improper surface cleaning or preparation, Oil contamination.
Prevention:
Remove all traces of silicone or wax by thoroughly cleaning.
Remedy:
Should be sanded down and refinished. |
Mildew
Condition:
Mildew spots on surface of paint or caulk.
Cause:
Use of inexpensive paint.
Remedy:
Remove all mildew by scrubbing with a solution of one part bleach to three parts water. Rinse thoroughly, Repaint only after surface drise for 48 Hours. Use Brighto Paint. |
Mottling
Condition:
A stripped or spotty appearance in metallic paints.
Cause:
1- Wrong thinner or reducer.
2- Poor mixing of materials.
3- Spraying too wet.
4- Spraying too close to the part.
5- Uneven spray pattern.
Prevention:
Select the thinner or reducer that is suitable for existing shop condition.e.g, faster solvent in cold, damp weather, and slower solvent in warm, dry weather, Mix all material properly. |
Peeling
Condition:
Loss of adhesion between the paint and substrate.
Cause:
1- Improper cleaning or preparation. Dust or other surface contaminants preventing the paint film from coming into proper contact with the substrate.
2- Poor mixing of material.
3- Use of incorrect primer/sealer. or no primer/sealer.
Prevention:
1- Thoroughly clean areas to be painted.
2- Mix all pigmented coatings thoroughly.
3- Brighto Primer/Sealers are recommended to improve adhesion of topcoats.
Remedy:
Remove finish from an area slightly larger than the affected area and refinish. |
|
Pinholing
Condition:
Tiny holes in the finish, putty or body filler, usually the result of trapped solvents, air or moisture.
Cause:
Improper surface cleaning or preparation.
Prevention:
1- Thoroughly clean all areas to be painted. Ensure all surfaces are dry before applying coatings.
2- Allow sufficient dry time.
Remedy:
Sand the affected area down to a smooth finish and refinish.
|
Solvent Popping
Condition:
Small holes in the paint film caused by rapid evaporation of solvents or air.
Cause:
Wrong thinner or reducer too fast.
Remedy:
In mild cases, the damage can be sanded out, and refinished, if damage is severe, the paint must be removed down to the undercoat or substrate, depending on the depth of the holes, and then refinished. |
Wrinkling
Condition:
Surface distortions that occurs while the enamel topcoat is being applied or drying.
Cause:
1- Allow proper drying time for undercoats and topcoats.
2- Schedule painting to avoid temperature extremes or rapid changes.
Remedy:
Remove wrinkled enamel and refinish. |
