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SC 90 Clear Coat

SC 90 Clear Coat is a two-component, high-solids, low-odor, solvent-based aliphatic polyaspartic coating designed for fast-cure, durable protection of concrete floors. It provides excellent abrasion resistance, chemical resistance, UV stability (non-yellowing), and a high-gloss finish. Ideal for applications requiring rapid return to service with minimal downtime.

  • Fast-cure formula supports rapid return to service
  • Low odor/low VOC
  • Excellent chemical resistance
  •  UV-Stable
  • Can be pigmented
Tech Sheet
Safety Sheet

Application

Surface Preparation: Concrete must be clean, sound, and profiled to CSP 3–5 (shotblast or diamond grind). Moisture vapor emission <3 lbs/1,000 sq. ft./24 hrs (ASTM F1869) or <75% RH (ASTM F2170).

Mixing: Pre-mix each component. Combine 2:1 by volume and mix thoroughly for 2–3 minutes using a low-speed drill. Do not aerate excessively.

Application: Apply with a notched squeegee and back-roll with 3/8″ nap or spiked roller to reduce surface imperfections and entrapped air. Multiple coats may be required for broadcast systems.

Temperature Limits: Apply when surface/ambient temps are 40–90°F (4–32°C) and rising; avoid dew point issues.

Test Data

Tensile Strength (ASTM D638): 3,500–4,500 psi

Elongation (ASTM D638): 5–15%

Hardness (Shore D, ASTM D2240): 70–80 (7 days)

Compressive Strength (ASTM D695): 5,000–6,000 psi (7 days)

Taber Abrasion Resistance (ASTM D4060, CS-17 wheel, 1,000 g load, 1,000 cycles): 20–40 mg loss

Impact Resistance (ASTM D2794): >50 in-lbs direct / >30 in-lbs reverse

Flexibility (1/8″ mandrel, ASTM D522): Passes (no cracking)

Adhesion to Concrete (ACI 503 or similar): >300 psi (substrate failure typical)