5 Star Advantage 8729-4 Premium 2.8 VOC Single Stage Urethane Activator Medium Quart

The 5 Star Advantage 8729-4 is a Premium 2.8 VOC Single Stage Urethane Activator Medium in a quart (24 fl. oz.) size, formulated for use with the 5 Star Advantage 8700 Series Premium Acrylic Urethane Single Stage topcoats. Designed for mid-temperature application conditions, this activator (hardener) enables high solids, high gloss, low VOC coatings intended for protective maintenance on automotive and industrial surfaces.

Key Features:

• Formulated for mid-temperature (mid-temp) application conditions
• 2.8 VOC low-emission formula
• 3:1 mix ratio with compatible 8700 Series single stage colors
• Pot life of approximately 2 hours at 70°F — mix only what is needed per job
• Film build of 1.0–2.0 mils per full wet coat; optimum dry film build of 2.0 mils
• RTS viscosity of 20–22 seconds (#2 Zahn cup)
• Weight solids (RTS): 36–45%
• Coverage approximately 400–450 sq. ft. per 0.75 gallon at 1 dry mil
• Compatible substrates include 2K urethane primer surfacers, DTM epoxy primer surfacers, OE finishes, and fully cured automotive-grade primers
• Protects against humidity, everyday weathering, chemicals, stone chips, and UV exposure
• Made in the United States

This activator is specifically designed for use with the 5 Star Advantage 8700 Series single stage urethane paint system, superseding the legacy 5 Star #8000 Series and Advantage #700 Series products. For best results, use with 5 Star Advantage #5425 / Advantage #325 DTM Primer under the 8700 Series paint. Clean equipment after use with 5 Star Advantage Gun Wash or a high-quality lacquer thinner. See the Safety Data Sheet (SDS) for disposal and safety information.