Wood & Stone Akabond 621 KG Part B — Hardener for Clear Knife-Grade Stone Epoxy (1 Quart)
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Description
Description
Wood & Stone Akabond 621 KG Part B — Hardener for Clear Knife-Grade Stone Epoxy (1 Quart)
Akabond 621 KG Part B is the hardener component of Wood & Stone's two-part clear knife-grade stone epoxy. Blended with Akabond 621 KG Part A resin (F015521) at a 2:1 ratio by volume, it triggers a solvent-free, zero-shrinkage cure that yields a strong, color-stable bond on light-colored marble, quartzite, and granite. Sized to match a 1/2-gallon unit of Part A.
| Property | Detail |
|---|---|
| Brand / Line | Wood & Stone Akabond (Axson North America) |
| Product | 621 KG — Knife Grade, Part B (Hardener) |
| Article Number | F015531 |
| Component | Part B hardener — use with Part A resin (F015521) |
| Chemistry | Two-part epoxy |
| System Consistency | Knife grade — high-viscosity clear gel, sag-resistant |
| Color | Translucent / clear (very good color stability) |
| Mix Ratio | 2:1 by volume (Part A : Part B) |
| Pot Life | 20–30 minutes at 78°F (150 g mix) |
| Cure Time | 12–16 hr at 78°F (25°C) |
| Min. Application Temp | 40°F (4°C) |
| Shrinkage | Zero (0%) |
| Formulation | Solvent-free |
| Size | 1 quart (Part B) — matches a 1/2-gallon Part A unit |
| Use | Interior & exterior |
- Hardener metered for a 2:1 by-volume blend with Akabond 621 KG Part A.
- Triggers a solvent-free, zero-shrinkage cure for tight seams and fills.
- Color-stable chemistry keeps seams clear on light marble, quartzite, and granite.
- 20–30 minute pot life at room temperature.
- Interior and exterior rated with very good color stability.
Combine with Akabond 621 KG Part A resin (F015521) at 2:1 by volume to bond and laminate slabs, seam countertops, and fill chips or cracks in light-colored natural stone. Keep containers matched so Part B is used at the correct 2:1 ratio.
Wear appropriate PPE. Follow manufacturer instructions and safety regulations.
