---
product_id: 2290704
title: "Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss"
brand: "minwax"
price: "NT$7114"
currency: TWD
in_stock: true
reviews_count: 8
category: "Minwax"
url: https://www.desertcart.tw/products/2290704-minwax-water-based-helmsman-spar-urethane-gallon-semi-gloss
store_origin: TW
region: Taiwan
---

# Water-based formula for easy cleanup UV blockers protect against sun damage Durable moisture & weather resistance Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss

**Brand:** minwax
**Price:** NT$7114
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your wood projects with lasting clarity and protection — don’t let your craftsmanship fade away!

## Quick Answers

- **What is this?** Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss by minwax
- **How much does it cost?** NT$7114 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/2290704-minwax-water-based-helmsman-spar-urethane-gallon-semi-gloss)

## Best For

- minwax enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Heritage Brand:** Minwax, America's wood finishing leader since 1904, ensuring quality and reliability you can count on.
- • **Year-Round Weather Warrior:** Protects wood from rain, sun, and temperature swings with flexible oils that expand and contract.
- • **Fast-Dry & Easy Application:** Dries quickly allowing multiple coats in a day, with simple cleanup using just warm water.
- • **Versatile Surface Protector:** Ideal for doors, windows, cabinets, countertops, and outdoor furniture—your all-in-one finishing solution.
- • **Crystal Clear Semi-Gloss Finish:** Enhances natural wood beauty with a sleek, modern sheen that lasts.

## Overview

Minwax Water Based Helmsman Spar Urethane is a premium, water-based protective finish designed for both interior and exterior wood surfaces. Featuring UV blockers and flexible oils, it guards against sun damage, moisture, and temperature changes while delivering a durable, semi-gloss crystal clear finish. Fast drying and easy to apply, it covers up to 500 sq ft per gallon and cleans up effortlessly with water. Perfect for professionals and DIYers seeking a trusted, versatile wood finish that keeps projects looking pristine year-round.

## Description

Product Description Minwax Helmsman Water Based Spar Urethane formula is a protective wood finish for interior and exterior projects that are exposed to sunlight, water, or temperature changes. It’s a wood varnish that contains UV blockers to reduce the sun’s graying and fading effects. It forms a protective layer against rain and moisture to shield your projects and keep them looking their best year-round. The special oils allow the finish to expand and contract with the wood as seasons and temperatures change. This spar urethane water-based formula protects the natural beauty of the wood while providing a crystal clear finish. It’s ideal for use over light colored woods and stains for a variety of projects that include doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more (not recommended for floors). It’s a versatile wood finish that dries quickly and cleans up easily with warm water. Minwax is America’s leading brand of wood finishing and wood care products. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing project. From the Manufacturer Minwax Water Based Helmsman Spar Urethane is a crystal clear, water-based finish that is specially formulated to protect wood against nature's toughest conditions.

Review: Good product - Refinished the outside door and applied three layers. The door is facing the sun, in direct sunlight. For 8 months, it has held good. By the way, the application was easy, and it dries fairly fast.
Review: Very solid when used correctly - This is one of those products that if you use it correctly it is excellent. It isn't something you just throw on and expect a great result. As they say, prep is everything.. I have used many different sealers- oil based, water based , wipe on products and spray urethanes. All work well depending on project. This is super easy to apply, dries quickly and you can layer many coats in a single day. It also is simple clean up vs oil based products. I have applied with sponge brush as well as high quality nylon brushes and all when used correctly leave great result. For previously stained or sealed wood I sand lightly with with 220 or higher grit sandpaper and make sure it is wiped super clean Absolutely MUST stir very well before and even during application to get good results. First coat should be super light and don't worry about how it looks at this point. Just keep it thin and don't over brush Wait 2+ hours before next coat. Another quick sand, repeat. You will notice each coat goes on easier as it builds and those spots you may have missed now disappear. I didn't sand at all after first two coats. For indoor wood I get great results with 3-4 coats,.outside furniture I put 6 coats on teak and final result was excellent. Living near the beach in Southern CA nothing survives the constant sun and salt air. This does excellent job preserving teak furniture. It DID slightly add a warm amber "tone" to the teak which I like. I have also used on walnut vaneer bath vanity which does get wet and this has worked out very well. You can thin slightly with water if needed but I found the consistentcy very easy to work with and again unlike oil based super easy clean up. I believe anyone who.is having problems is not following directions. I used semi gloss on outside furniture and satin indoor just as a personal preference , both produced great results.

## Features

- PROTECTIVE CLEAR FINISH – Minwax Helmsman Water Based Spar Urethane is a crystal clear wood finish that is specially formulated to protect against nature’s toughest conditions.
- EFFECTIVE YEAR ROUND – This wood varnish forms a protective barrier against rain and moisture to protect your projects and keep them looking their best. Special oils allow the finish to expand & contract with the wood as seasons and temperatures change.
- VERSATILE – Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more. It’s a versatile water-based spar urethane that dries quickly and cleans up easily with warm water.
- SEMI-GLOSS FINISH – Give your wood projects a sleek finish with this semi-gloss clear varnish. It protects the natural beauty of the wood and offers a long-lasting, semi-shiny sheen for a modern look. It’s ideal for use over light colored woods & stains.
- A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care products. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing need.
- Suitable for application on doors, windows, bathroom cabinets, kitchen countertops and outdoor furniture
- Exceptional protection from sunlight, rain and moisture, as well as temperature changes
- Formulated for easy application with a synthetic bristle or foam brush
- Water-based formula has a 275 VOC rating
- 1 gallon covers up to 500 square feet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Minwax |
| Finish Type | Brushed |
| Item Weight | 3.74 Kilograms |
| Liquid Volume | 128 Fluid Ounces |
| Material | water based |
| Recommended Uses For Product | Exterior, Interior |

## Product Details

- **Brand:** Minwax
- **Material:** water based
- **Finish Type:** Brushed
- **Item Weight:** 3.74 Kilograms
- **Recommended Uses For Product:** Exterior, Interior

## Images

![Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss - Image 1](https://m.media-amazon.com/images/I/61OSKhFEE9L.jpg)
![Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss - Image 2](https://m.media-amazon.com/images/I/81S7b4EvOuL.jpg)
![Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss - Image 3](https://m.media-amazon.com/images/I/914QpNLbsbL.jpg)
![Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss - Image 4](https://m.media-amazon.com/images/I/91nFyHC7zzL.jpg)
![Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss - Image 5](https://m.media-amazon.com/images/I/81BAsnP502L.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by J***B on February 3, 2026*

Refinished the outside door and applied three layers. The door is facing the sun, in direct sunlight. For 8 months, it has held good. By the way, the application was easy, and it dries fairly fast.

### ⭐⭐⭐⭐⭐ Very solid when used correctly
*by M***D on October 24, 2020*

This is one of those products that if you use it correctly it is excellent. It isn't something you just throw on and expect a great result. As they say, prep is everything.. I have used many different sealers- oil based, water based , wipe on products and spray urethanes. All work well depending on project. This is super easy to apply, dries quickly and you can layer many coats in a single day. It also is simple clean up vs oil based products. I have applied with sponge brush as well as high quality nylon brushes and all when used correctly leave great result. For previously stained or sealed wood I sand lightly with with 220 or higher grit sandpaper and make sure it is wiped super clean Absolutely MUST stir very well before and even during application to get good results. First coat should be super light and don't worry about how it looks at this point. Just keep it thin and don't over brush Wait 2+ hours before next coat. Another quick sand, repeat. You will notice each coat goes on easier as it builds and those spots you may have missed now disappear. I didn't sand at all after first two coats. For indoor wood I get great results with 3-4 coats,.outside furniture I put 6 coats on teak and final result was excellent. Living near the beach in Southern CA nothing survives the constant sun and salt air. This does excellent job preserving teak furniture. It DID slightly add a warm amber "tone" to the teak which I like. I have also used on walnut vaneer bath vanity which does get wet and this has worked out very well. You can thin slightly with water if needed but I found the consistentcy very easy to work with and again unlike oil based super easy clean up. I believe anyone who.is having problems is not following directions. I used semi gloss on outside furniture and satin indoor just as a personal preference , both produced great results.

### ⭐⭐⭐⭐⭐ Works great on OSB
*by T***R on April 1, 2023*

I wasn't sure if this would be a good match for the Huber AdvanTech subfloor OSB that I used as the floor of my Harbor Freight trailer, but it worked great. I sanded all sides of the OSB with 80 grit, blew off as much dust as I could, wiped it down with a damp rag, let it dry, and applied this stuff with a foam roller. I did 3 coats on the top side and 2 on the bottom side, which was plenty. A full 4'x8' sheet used up a little more than a quart. It goes on looking pretty thin and watery, so I wasn't super confident it would create a durable finish layer, but it certainly did. It dries to a hard plastic skin that seems like it should last quite a long time, especially since I'll store the trailer under a tarp. Before I could cover it after installing the floor, we got a good storm that soaked it, and while the water didn't really bead up, most of it wiped off easily and the remainder dried with zero issues. I wasn't concerned with appearances so I can't comment on the smoothness or quality of the finish if you're aiming for fine woodworking. For my application, though, it looks just fine and worked better than expected.

## Frequently Bought Together

- Minwax Water Based Helmsman Spar Urethane, Gallon, Semi-Gloss
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- Pro Grade Paint Brush Set - 3-Pack - 2" Angle Brushes for All Latex and Oil Paints & Stains - Home Improvement - Interior & Exterior Use

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tw/products/2290704-minwax-water-based-helmsman-spar-urethane-gallon-semi-gloss](https://www.desertcart.tw/products/2290704-minwax-water-based-helmsman-spar-urethane-gallon-semi-gloss)

---

*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-23*