UZIN NC 886 Premium - Skim and Repair Compound

Polymer-modified portland-based fine smoothing compound

Rapid-drying fine repair mortar used to smooth and fill imperfections of interior surfaces before installing floor covering material. Mixed with water, this polymer-modified compound of portland and select hydraulic cement can be applied to various surfaces, often without the requirement of a primer. Suitable for use with all floor coverings and adhesives.


  • Interior use only
  • Use over concrete, cement-based leveling compounds
  • Use over wood, plywood, OSB, underlayment panels
  • Use over well bonded adhesive residues including cutback adhesive*
  • Use over quarry tile, natural stone, terrazzo
  • Use over ceramic tile, dense and smooth coatings, metal
  • Use as a embossing filler over residential sheet vinyl
  • Residential and commercial applications
  • Use with radiant floor heating systems

*See “Substrate Preparation” for additional information.


  • Polymer-modified • Enhanced bond and durability
  • Ideal consistency • Smooth trowel application
  • Fast-dry formula • 15 minutes on absorbent substrates 
  • High strength • Suitable for caster wheels 

Technical data

*At 70 °F (21 °C) and 50% relative humidity. Surface profile and porosity, application depth, temperature, and humidity will affect dry time and coverage.** In original unopened packaging, when stored indoors in dry, moderate conditions between temperatures of 50F - 90F (10C - 32C).

10 lb (4.5 kg) foil bag


up to 9 months**

Mixing ratio

part measures: mix two parts powder to one part water by volume

Water quantity

 2.2–2.5 quarts per 10 lb bag 
(2.1–2.4 liters per 4.5 kg bag)




100-300 sq. ft. as a skimcoat (10 lb)*9.29-28 m² as a skimcoat (10 lb)*
up to 34 sq. ft. per bag at 1/8" (10 lb)*up to 3.15 m² per bag at 3 mm (10 lb)*


0 g/L

Working time

15-20 minutes*

Ready for foot traffic

15-60 minutes*

Ready for covering

15-120 minutes*
16 hours for wood flooring*

Minimum application temperature

50 °F (10 °C) at floor level


compressive: 3,000 psi at 28 days
ASTM C109 | air cure only

Ordering information

Packsize Shipping unit
77352 10 lb (4.5 kg) foil bag
Box :
Pallet :

Quality seals and badges

SCS_IAQ_IAG[Building Materials]_1CG

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