

🖤 Seal it once, seal it right — MasterSeal NP1 keeps your projects flawless!
MasterSeal NP1 is a high-performance, moisture-curing polyurethane sealant designed for both interior and exterior use. Each 10.1 oz tube offers permanent elasticity and bonds directly to concrete, masonry, aluminum, and wood without primer. It skins overnight, fully cures within a week, and provides a smooth, paintable black finish—ideal for expansion joints, structural components, and more. Sold in convenient 4-packs for professional-grade sealing that lasts.
| Package Dimensions | 34.19 x 27.99 x 6.91 cm; 286.33 g |
| Part number | NP1BLACK |
| Material type | Polyurethane |
| Item volume | 10.1 Fluid Ounces |
| Manufacturer | BASF |
| Item model number | NP1BLACK |
| ASIN | B09HR9ZZPF |
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