Wood Floor Troubleshooting Guide
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Troubleshooting Guide

 

Initial Application Issues

 

 

  Uneven Gloss

Most
Likely

Least
Likely

Cause
Solution
Insufficient mixing of finish. High speed burnish floor. If this doesn't work, deep scrub with Sport Prep™ (#1127) and recoat. Note: Sport Kote® (#222) requires light agitation before application.
Uneven Finish application. High speed burnish floor. If this doesn't work, deep scrub with Sport Prep (#1127) and recoat. Apply finish at recommended coverage rate across entire floor.
Dirty applicator or soiled floor. Always use clean equipment and thoroughly tack or clean floor before applying finish.
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Slow Dry Time

Most
Likely

Least
Likely

Cause
Solution
High humidity. Turn on A/C, increase ventilation.
Low temperature. Turn up heat.
Lack of air movement. Increase ventilation.
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Finish Is Hazy (Milky Look to Floor)

 

Cause
Solution
Finish recoated too quickly (trapping moisture). Allow floor to cure for one week then clean and burnish. If this doesn't work, deep scrub using Sport Prep (#1127) and apply one or two coats of finish.
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Finish Contains Equally Spaced Milky White Streaks

Most
Likely

Least
Likely

Cause
Solution
Finish applied under very high humidity and is streaking at the applicator overlaps. Let the floor dry. DO NOT coat over this situation. The floor will eventually clear as it dries and may take several hours or longer. Burnish the next day (when floor is completely dry) can also help.
Finish not applied to floor in "heavy" enough bead. Apply enough finish to floor, especially on very large floors, so that 3-4" bead is maintained at all times. After the floor dries, apply another coat of finish.
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Floor is Tacky

Most
Likely

Least
Likely

Cause
Solution
Finish did not dry. Allow floor to dry completely before opening to traffic. Finishing floors under very humid conditions ( >80%) is the main reason floors remain tacky. If humidity is high, make sure there is plenty of ventilation in the area between coats and once the final coat of finish has been applied.
Finish recoated too quickly. Allow floor to cure for one week then clean and burnish.
Finish applied too heavily. Allow floor to cure for one week then clean and burnish.
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Finish Streaked

Most
Likely

Least
Likely

Cause
Solution
Finish applied too thin. Burnish floor. If this doesn't work, deep scrub using Sport Prep (#1127) and apply one or two coats of finish.
Finish dried too quickly. Burnish floor. If this doesn't work, deep scrub using Sport Prep (#1127) and apply one or two coats of finish. Note: This is common when a large volume of air (ventilation) is blown across finish.
Finish recoated too quickly. Burnish floor. If this doesn't work, deep scrub using Sport Prep (#1127) and apply one or two coats of finish.
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Floor is Slippery

Most
Likely

Least
Likely

Cause
Solution
Solvent rain-back. Allow floor to cure for one week then clean and burnish. Finishing floors under very humid conditions ( >80%) is the main reason floors can be slippery. If humidity is high, make sure there is plenty of ventilation in the area between coats and once the final coat of finish has been applied.
Finish recoated too quickly. Allow floor to cure for one week then clean and burnish.
Finish applied too heavily. Allow floor to cure for one week then clean and burnish.
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  Finish Is Peeling

Most
Likely

Least
Likely

Cause
Solution
Incompatible products. Screen and recoat. Oftentimes, improper preparation and application with previous finished from competitors cause adhesion problems.
Improper abrasion before recoating. Screen and recoat.
Sealer or paint not dry before applying next coat of finish. Screen and recoat.
Dirt equipment or soiled floor. Screen and recoat.
Excessive moisture in sub-flooring. Remove source of moisture. Then sand floor and recoat.
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Finish Is Flaking

Most
Likely

Least
Likely

Cause
Solution
Cold floor and/or cold finish applied. Heavy screening to remove flaked finish and recoat.
Wax contamination. Screen and recoat.
Dirty equipment or soiled floor. Screen and recoat.
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Finish Wrinkled

Most
Likely

Least
Likely

Cause
Solution
Recoating too soon (OMU only). Screen floor with 80 grit, followed by 120 grit and recoat.
Too heavy of finish application (OMU only). Screen floor with 80 grit, followed by 120 grit and recoat.
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Finish Looks Like Alligator Hide

Most
Likely

Least
Likely

Cause
Solution
Finish applied too heavily. Screen and recoat.
Finish recoated too quickly. Screen and recoat.
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Finish Contains Bubbles

Most
Likely

Least
Likely

Cause
Solution
Finish drying too fast. Screen and recoat. Note: Too much air (ventilation) blowing across finish during application can flash dry finish and trap bubbles.
Overworking applicator. Screen and recoat.
Improper tack. Screen and recoat.
Surface contamination. Screen and recoat. Oil, soap or wax contamination will cause bubbling.
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Finish Contains Craters

Most
Likely

Least
Likely

Cause
Solution
Silicone contamination. Screen and recoat. Mop treatments and furniture polish are major sources of silicone contamination.
Bubble that popped and didn't level. Screen and recoat.
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  Finish Contains Pinholes

Most
Likely

Least
Likely

Cause
Solution
Improper tack. Screen and recoat.
Recoated too quickly. Screen and recoat.
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Finish Contains Fish Eyes

Most
Likely

Least
Likely

Cause
Solution
Insufficient mixing of finish. Screen and recoat. Note: Sport Kote® (#222) requires light agitation before application.
Contamination of surface. Screen and recoat.
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Paint (Game Lines) Is Peeling

Most
Likely

Least
Likely

Cause
Solution
Incompatible products. Always test paint, especially a new paint, with the finish you'll be using before applying to gymnasium floor. Screen and re-paint with a different paint.
Improper abrasion of seal or finish. Screen and re-paint.
Sealer or finish not dry before applying paint. Screen and re-paint.
Poor quality mineral spirits used to tack floor (when using OMU). Screen and re-paint. Use only high quality mineral spirits or Waterless Cleaner for tacking OMU finishes.
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