U-POL Dolphin 1K Stopper is a professional-grade, single-component nitrocellulose acrylic putty designed for the final rectification of minute surface defects. This "Ultra Smooth" stopper is the ultimate solution for filling pinholes in body filler, fine sanding scratches, and stone chips. Its olive green color is specifically chosen to provide a high-contrast visual aid, making it easy to see exactly where the repair has been leveled.
Key Performance Features:
- Ultra-Fine Consistency: The smooth, buttery texture allows the putty to glide into microscopic imperfections that standard fillers or high-build primers might bridge over.
- 1K Convenience: Requires no hardener or mixing. Simply use it straight from the tube, significantly reducing prep time and eliminating "mix-ratio" errors.
- Superior Sandability: Formulated to sand effortlessly without clogging fine-grit abrasives. It feathers out to a "invisible" edge, ensuring no ghost lines appear under the paint.
- Rapid Drying: Dries via solvent evaporation in thin layers, allowing you to move to the priming or painting stage quickly.
- Shrink-Resistant Formula: While all 1K putties undergo some evaporation, Dolphin Stopper is engineered to maintain high volume stability for a 1K product.
Expert Tip: The olive green color is a "cheat code" for perfection. When you sand it back, the green will remain only in the low spots (the scratches or pinholes). Once all the green has disappeared except for what is inside the defect, you know the panel is perfectly flat.