---
product_id: 16675567
title: "Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1)"
brand: "masterseal"
price: "€ 44.88"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/16675567-masterseal-1025568-np-1-sealant-one-part-urethane-black-10
store_origin: HR
region: Croatia
---

# Water resistant for lasting protection Sleek black color for seamless finishes One-part polyurethane formula Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1)

**Brand:** masterseal
**Price:** € 44.88
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal it like a pro—durability meets sleek design!

## Quick Answers

- **What is this?** Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1) by masterseal
- **How much does it cost?** € 44.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/16675567-masterseal-1025568-np-1-sealant-one-part-urethane-black-10)

## Best For

- masterseal enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Easy to handle and store with a slim 10.1 fl. oz. design that fits any toolkit.
- • **Effortless Application:** One-part urethane means no mixing—just apply and seal with confidence.
- • **Durable Water Resistance:** Protect your projects from moisture damage with advanced water-resistant technology.
- • **Trusted Safety Standards:** Meets UL standards ensuring reliable performance and peace of mind.
- • **Sleek & Professional Finish:** Black sealant blends perfectly on window surfaces for a clean, modern look.

## Overview

Masterseal 1025568 NP-1 is a one-part black polyurethane sealant designed for window applications. It offers water resistance, easy application without mixing, and meets UL safety standards, all packed in a compact 10.1 fl. oz container for professional-grade sealing with a sleek finish.

## Description

Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1)

## Features

- Package Dimensions: 30.48 L x 5.08 H x 5.08 W (inches)
- Package Weight : 0.95 pounds
- Country of Origin : China

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Polyurethane |
| Brand | Masterseal |
| Item Weight | 0.01 Pounds |
| Item dimensions L x W x H | 2 x 2 x 12.25 inches |
| Compatible Material | Alloy Steel |
| Water Resistance Level | Water Resistant |
| Item Form | Liquid |
| UPC | 080492301908 |
| Unit Count | 10.1 Fl Oz |
| Style | Compact |
| Global Trade Identification Number | 00080492301908 |
| Number of Items | 1 |
| Supported Standards | UL standards for safety and performance |
| Color | Black |
| Surface Recommendation | Window |
| Manufacturer | Masterseal |
| Part Number | NP1BLK |
| Item Weight | 0.16 ounces |
| Product Dimensions | 2 x 2 x 12.25 inches |
| Item model number | 1025568 |
| Is Discontinued By Manufacturer | No |
| Size | 10.1 Fl. Oz (Pack of 1) |
| Item Package Quantity | 1 |
| Included Components | Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1) |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Polyurethane
- **Brand:** Masterseal
- **Item Weight:** 0.01 Pounds
- **Item dimensions L x W x H:** 2 x 2 x 12.25 inches
- **Compatible Material:** Alloy Steel

## Images

![Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/712Y7hMb9ML.jpg)

## Questions & Answers

**Q: Can I use this to seal the gaps between solid hard wood floor? How is it compared to silicone caulk?**
A: This is really meant for exterior use in commercial or industrial applications, or residential for something you never want to deal with again.  Once it dries and cures it becomes insanely hard and difficult to remove.  Definitely would not recommend this for any interior applications.

**Q: what's the highest temperature this can withstand under normal use? can it be used in an automobile engine bay?**
A: I’d say no

**Q: How old is this product as I understand the shelf life is only 1 year?**
A: In the past I have had tubes of this product that were 5 years old, opened and used it like new.  Product retains workability for a long time and is better than silicone products for roofing issues.

**Q: is this a paintable sealant?**
A: No.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wear gloves and make sure to not get it on an area you don't want it!
*by M***N on October 18, 2020*

Used this product for years never had an issue when installed correctly. Stays flexible forever great for areas where areas have expansion or some movement.

### ⭐ Worng color
*by K***T on October 24, 2023*

good product, but I ordered BLACK. Product arrived WHITE!

### ⭐⭐⭐⭐⭐ I am happy with the sealant
*by C***H on September 28, 2016*

I am happy with the sealant. It dries to a rubbery fell and adheres well to all my roofing materials. Only time will tell if it holds up well.I cleaned up with mineral spirits which worked well.

## Frequently Bought Together

- Masterseal 1025568 NP-1 Sealant One Part Urethane, Black, 10.1 Fl. Oz (Pack of 1)
- Primesource NP1 PolySeal Black 10oz Multi-Purpose Polyurethane Caulk 12 Count Water Resistant
- BASF Sealant NP1 Polyurethane White 10.1 Oz - Case of 30

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**Shop now:** [https://www.desertcart.hr/products/16675567-masterseal-1025568-np-1-sealant-one-part-urethane-black-10](https://www.desertcart.hr/products/16675567-masterseal-1025568-np-1-sealant-one-part-urethane-black-10)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-16*