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GENERAL INFORMATION

• Kosmic Kolor UC-35 Klear is a 3.5 VOC, National Rule and SCAQMD Rule 1151 compliant version of UC-1.
• UC-35 may be used to topcoat any urethane enamel finish, including all SHIMRIN® Base Coats.
• UC-35 is medium solids, 30 solids as applied, and has the same application properties of conventional clear coats.
• UC-35 features excellent gloss and D.O.I. (Distinctness Of Image).
• It has good chemical and water resistance and excellent weathering and ultraviolet resistance.
• UC-35 dries fast and hard and may be colored sanded and buffed the next day.

1. MIXING KOSMIC KLEAR (UC-35)

MIX ONLY WHEN READY TO SPRAY.

For National Rule Compliance:

• For a 3.5 VOC National Rule compliant Klear:
  • Mix 2 parts UC-35 Klear to 1 part KU-150 Exempt Catalyst to 1 part Kosmic Reducer. Mix well.
  • REDUCE ONLY WITH KOSMIC REDUCERS.
  • Use a reducer best suited to your shop temperature.
  • See tech sheet for more information on reducers.
• For SCAQMD Rule 1151 Compliance:
  
  • For a 0.50 VOC SCAQMD Rule 1151 compliant Klear mix 2 parts UC-35 Klear to 1 part KU-150 Exempt Catalyst to 1 part RU-300 Exempt Reducer. Mix well.
  • MUST REDUCE WITH RU-300 TO REMAIN AT 0.52 VOC.
  • See tech sheet for more information on reducers.
• For a 1.90 VOC SCAQMD Rule 1151 Compliant Klear:
  • Follow directions above except in place of RU-300 use a 70 by volume RU-300 / 30 by volume Kosmic Reducer blend.
  • See tech sheet for more information on reducers.

NOTE: UC-35 has a pot life of approximately 2 hours at 70°F.

NOTE: For extra flow out, add up to 10 of RU-300 VOC Exempt Reducer per mixed quart of clear.

NOTE: We have designed specific Catalysts to work with each of our clears. These Catalysts are NOT interchangeable. Use only the Catalyst specified for the specific clear you are using.

NOTE: KU-150 VOC Exempt Catalyst is moisture sensitive and will not keep for long periods once open. When doing many small jobs, buy smaller containers to prevent spoilage. Keep container tightly sealed. Clean the catalyst container pour spout by wiping the threads with reducer for easy reopening.

2. APPLYING KOSMIC KLEAR (UC-35)

• Apply 2-3 medium wet coats with 50 pattern overlap.
• Gun distance while spraying should beapproximately 6 inches.
• Air pressure at gun 50-60 psi, 10 psi at nozzle of HVLP (may vary with equipment used).
• Allow flash time between coats.

URETHANE FLASH TEST - PAINT SHOULD BE STICKY AND NOT STRING WHEN TOUCHED AT THE WETTEST POINT BEFORE NEXT COAT IS APPLIED. (When using the flash test, always touch a new spot.) Monitor religiously for maximum merging of coats.

NOTE: Waiting too long between coats can cause re-coat problems. If excessive dry time has elapsed and clear coat feels dry to the touch, allow 12 hours before sanding and re-coating to avoid lifting problems.

NOTE: Over spray from any catalyzed topcoat material (such as our UB-4, UB-5, UK Kandys, UC-35 Klear or UFC-19 Komply Klear II may lift when base coats are applied. Mask carefully to prevent this over spray when painting door jambs, etc.

3. COLOR SANDING

IF NOT FLOW COATING, GO TO STEP 5 POLISHING

• After clear coats have been cured overnight (12-24 hours), color sand with 400 - 600 grit wet sandpaper.
• Add a small amount of mild liquid detergent to the water and soak the sandpaper for 15-20 minutes. This prevents sandpaper loading.
• Sand the entire vehicle flat, leaving no glossy spots.
• Dry as you go, so soap residue doesn't bite the fresh paint.
• After sanding, wipe the vehicle with a clean rag and water. Wipe dry.
• Use a tack rag to remove lint before re-coating. (Chemical washes at this stage are not recommended.)
• Use clean rags and warm water.

NOTE- Avoid touching the vehicle with your bare hands as the oil from your skin may impair flow coats.

CAUTION: DO NOT SAND THROUGH THE CLEAR AND RUIN ALL YOU'VE DONE.

4. FLOW COATS (Optional)

RE-MASKING THE VEHICLE AFTER COLOR SANDING WILL GIVE YOU A CLEANER FINISH WHEN FLOW COATS ARE APPLIED.

• After color sanding, re-clear using 6-8 ounces of extra RU-300 VOC Exempt reducer per mixed quart of clear.
• The additional reducer will give you extra flow out.
• Begin with a medium coat, allow flash time, and then follow with 1-2 wet coats.
• Allow flash time between coats. (For improved hardness the next day, add 1 extra ounce of KU-150 VOC Exempt Catalyst to this mixture.)

NOTE: With this method, polishing is not required unless you desire a show quality finish, or to remove minor dirt particles. Do not wait too long to polish, as hardness develops fast. UC-35 should be polished within 24 hours.

5. POLISHING

In a 70°F shop, allow 12 hours for dry time before polishing.

See tech sheet for more information on Polishing & Finishing.

ADDITIONAL INFORMATION

When clear coating UB-4 Jet Set Black mix equal amounts of UB-4 and UC-35 Clear, then catalyze and reduce as usual for improved gloss and jetness.