---
product_id: 590371999
title: "10.1 Oz. Polyurethane Sealant, Black - Pack of 4"
brand: "masterseal np1"
price: "S$172"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/590371999-10-1-oz-polyurethane-sealant-black-pack-of-4
store_origin: SG
region: Singapore
---

# Permanent elasticity - long-lasting black finish Moisture-curing - reliable in wet conditions 10.1 fl oz per tube - ample coverage 10.1 Oz. Polyurethane Sealant, Black - Pack of 4

**Brand:** masterseal np1
**Price:** S$172
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal it once, seal it right — MasterSeal NP1 keeps your projects flawless!

## Quick Answers

- **What is this?** 10.1 Oz. Polyurethane Sealant, Black - Pack of 4 by masterseal np1
- **How much does it cost?** S$172 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/590371999-10-1-oz-polyurethane-sealant-black-pack-of-4)

## Best For

- masterseal np1 enthusiasts

## Why This Product

- Trusted masterseal np1 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Paintable Finish:** Smooth, black surface that blends seamlessly with your design
- • **Durable & Flexible:** Maintains elasticity for lasting protection on all surfaces
- • **Unmatched Versatility:** Seals active joints indoors & outdoors with ease
- • **Effortless Application:** No primer or mixing needed—just apply and go
- • **Fast Skinning & Curing:** Skins overnight, fully cures within a week for quick project turnaround

## Overview

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.

## Description

MasterSeal NP1 10.1 Oz. Polyurethane Sealant, Black. Packaging may vary, Pack of 4. A versatile moisture-curing high-performance polyurethane sealant with permanent elasticity (Formerly: Sonolastic NP 1). For use on active, vertical and horizontal interior, exterior joints including expansion wall joints, floor and pavement joints, curtain walls, panel walls, precast walls, window frames, structural components, dams, spillways, and storm water drains. Substrates include concrete, masonry, aluminum, and wood. Bonds to concrete, masonry, and other materials without a primer. Does not require mixing. Skins overnight and fully cures within a week. Dries smooth and is paintable.

## Features

- MasterSeal NP1 10.1 Oz. Polyurethane Sealant, Black
- A versatile moisture-curing high-performance polyurethane sealant with permanent elasticity (Formerly: Sonolastic NP 1).
- For use on active, vertical and horizontal interior, exterior joints including expansion wall joints, floor and pavement joints, curtain walls, panel walls, precast walls, window frames, structural components, dams, spillways, and storm water drains.
- Packaging may vary.
- Pack of 4.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** MasterSeal NP1
- **Item weight:** 10.1 Ounces
- **Liquid volume:** 10 Milliliters
- **Item form:** Paste
- **Surface recommendation:** Floor,Wall,Walls,Window

## Images

![10.1 Oz. Polyurethane Sealant, Black - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/510f-K61qYL.jpg)

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**Shop now:** [https://www.desertcart.sg/products/590371999-10-1-oz-polyurethane-sealant-black-pack-of-4](https://www.desertcart.sg/products/590371999-10-1-oz-polyurethane-sealant-black-pack-of-4)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-07*