377 D: Cementitious Urethane Topcoat

377 D is a cementitious urethane topcoat with high solids and a matte finish. It is most often used as a heavy-duty topcoat over 377 TR and SL Systems to make them more durable and easier to clean.

377 D will tolerate large temperature swings (thermal-shock) and service exposure to wet and dry temperatures of up to 220°F. It can also be used as a primer to seal porous concrete substrates or as a durable stand-alone coating (two coats for stand-alone applications) where thermal-shock is NOT an issue.

Train your staff to prep, patch, coat and seal and forget hiring contractors with our on-site training program.

Actual epoxy colors may vary from color swatch and photos.


SKU: N/A Category: Tags: , , Product ID: 3276


  • Highly resistant to thermal shock and elevated temperatures when applied over 377 TR or SL Systems
  • Applies quickly and easily via squeegee and roller
  • High abrasion resistance
  • Broad spectrum chemical resistance
  • Self-priming over bare concrete substrates
  • Can be applied to freshly poured concrete after a minimum 7 day cure time
  • Can be applied vertically
  • VOC compliant
  • Tolerates up to 6 lbs. per sq. ft. per 24 hours MVTR (Moisture Vapor Transmission Rate)
  • Will tolerate damp substrates during installation
  • Accelerator available for fast turn needs or for installations from 40° – 50°F
  • Satin/lower gloss finish
  • Able to be colored using Tri-Chem Universal Colorants

Additional information


Russet – C09, Tile Red – C12, Safety Yellow – C17, Forest Green – C07, Twilight Blue – C06, Light Blue – C05, Velvet Blue – C04, Warm Sun – C16, Brandy – C15, Tan – C14, Fawn Beige – C13, Toffee – C11, Antler Brown – C10, Black – C08, Gun Powder Grey – C01, Dark Grey – C02, Light Grey – C03, Clear – C00, White – C18






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