---
product_id: 259896776
title: "Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss"
brand: "minwax"
price: "521 Lei"
currency: RON
in_stock: false
reviews_count: 5
category: "Minwax"
url: https://www.desertcart.ro/products/259896776-minwax-630510444-water-based-helmsman-spar-urethane-quart-semi-gloss
store_origin: RO
region: Romania
---

# Water-resistant protective barrier UV blockers reduce sun damage Flexible finish adapts to temperature Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss

**Brand:** minwax
**Price:** 521 Lei
**Availability:** ❌ Out of Stock

## Summary

> ✨ Protect your wood’s glow, rain or shine! ☀️💧

## Quick Answers

- **What is this?** Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss by minwax
- **How much does it cost?** 521 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/259896776-minwax-630510444-water-based-helmsman-spar-urethane-quart-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

- • **Sun-Smart Shield:** Blocks UV rays to keep wood vibrant and fade-free
- • **All-Weather Armor:** Defends against rain and moisture for year-round durability
- • **Season-Ready Flex:** Expands and contracts with wood to prevent cracking
- • **Crystal Clear Elegance:** Semi-gloss finish enhances light woods without yellowing
- • **Quick & Clean Application:** Dries fast and cleans up easily with just warm water

## Overview

Minwax 630510444 Water Based Helmsman Spar Urethane is a semi-gloss, water-based wood finish designed for both interior and exterior use. Featuring UV blockers, it prevents sun-induced fading and graying while forming a durable, moisture-resistant barrier. Its special oils allow the finish to flex with wood through seasonal changes, maintaining a crystal-clear, semi-gloss look ideal for light-colored woods. Fast drying and easy cleanup make it a top choice for doors, trim, cabinets, and outdoor furniture.

## 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.

Review: I had EXCELLENT results using this project on a 50 year old solid oak door. Absolutely no brush marks visible after the job was completed. Make sure to follow the directions closely. I applied three coats to the door, sanding lightly with 220 grit sandpaper between coats. There is no odor and product is water based. Very easy cleanup. Highly recommend.
Review: First time painter and this product was great for entry door. Water based paint flows easily while applying, very little absorption, presumed water based product would seep into wood but I was proven wrong. Barely used one fourth of a quart for a full entry door, both sides, two coats. No dripping, no mess, no stickiness, no toxins, no smell, dried in 30 minutes. Got the semi gloss finish which really looks nice, not too glossy or not too bland. Recommend to try the water based, it does not flake like the oil based paint as time progresses. West facing door, hoping to get 4-5 yrs of protection from texas sun.

## Features

- Contains UV blockers to reduce the sun's graying and fading effects
- Forms a protective barrier against rain and moisture
- Special oils allow the finish to expand and contract with the wood as seasons and temperatures change
- Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture
- Crystal clear finish is ideal for use over light-colored woods and stains. Dries quickly and cleans up easily with warm water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001W44GHQ |
| ASIN  | B001W44GHQ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #61,648 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #291 in Finishes, Sealers & Stains |
| Color | Semi-Gloss |
| Coverage | Full |
| Customer Reviews | 4.6 4.6 out of 5 stars (481) |
| Customer reviews | 4.6 4.6 out of 5 stars (481) |
| Date First Available | 7 September 2012 |
| Date First Available  | 7 September 2012 |
| Finish | Semi-Gloss |
| Global Trade Identification Number | 00027426630512 |
| Included components | Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss |
| Item Package Quantity | 1 |
| Item Weight | 1.02 Kilograms |
| Item form | Liquid |
| Item model number | 630510444 |
| Item model number  | 630510444 |
| Liquid volume | 1 Fluid Ounces |
| Manufacturer | Minwax |
| Manufacturer  | Minwax |
| Part number | 630510444 |
| Pattern | Urethane |
| Product Dimensions | 12.7 x 12.7 x 12.7 cm; 1.02 kg |
| Product Dimensions  | 12.7 x 12.7 x 12.7 cm; 1.02 kg |
| Shape | shape |
| Size | 1 Quart |
| Style | Semi-Gloss (Water Based) |
| UPC | 027426630512 |

## Product Details

- **Brand:** Minwax
- **Finish type:** Semi-Gloss
- **Item weight:** 2.25 Pounds
- **Material:** water based
- **Recommended uses for product:** exterior-and-interior

## Images

![Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 1](https://m.media-amazon.com/images/I/61o8i1h0Y5L.jpg)
![Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 2](https://m.media-amazon.com/images/I/81BAsnP502L.jpg)
![Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 3](https://m.media-amazon.com/images/I/81S7b4EvOuL.jpg)
![Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 4](https://m.media-amazon.com/images/I/913zpRFQo+L.jpg)
![Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 5](https://m.media-amazon.com/images/I/914QpNLbsbL.jpg)

## Questions & Answers

**Q: Can this product be applied to painted surfaces.**
A: I have used it over wood carvings painted with acrylic paints and have have excellent results in an outdoor evironment.

**Q: can i apply the oil based urethane over a water based paint to protect it?**
A: You can but this is why you should use a water based poly over the oil poly Oil based poly has an amber hue, whereas water based poly is clear. An oil based polyurethane will continue to amber and darken over time, while water based poly will remain clear for the lifetime of the hardwood floor. ... Water based poly dries much faster, and several coats (up to 4) can be applied in one day. This explains why fritz the cat who did answer this question as well is why theirs yellowed

**Q: How is the viscocity out of the can, is it more like warm syrup or more like water...or somewhere in between? Thank you!**
A: Maybe Slightly Thinner than warm Syrup, So probably between Warm Syrup & Water. A word of advice though, I had an extremely difficult time working with this product & had to sand and reapply many coats to get a satisfactory finish. It dries fast & if you run a brush over it after is has sat more than a minute it will create rough brush marks. Additionally if you apply more than a very thin layer it will crack similar to a crackle pattern. Unless you are putting this over a pure white background I would recommend that you use the standard "Crystal Clear" non-water based urethane. It has only a light yellow tint and is much easier to work with in my experience.

**Q: Can this product be applied over an exterior wood stain?**
A: In fact it can, but being unfamiliar with the product, I purchase it thinking that it's use would result in a shine. I learned that "spar" must mean something other than gloss or high gloss. I then purchased the "Minwax Gloss aerosol which gave me the desired result, although several coats were required.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***. on 23 June 2025*

I had EXCELLENT results using this project on a 50 year old solid oak door. Absolutely no brush marks visible after the job was completed. Make sure to follow the directions closely. I applied three coats to the door, sanding lightly with 220 grit sandpaper between coats. There is no odor and product is water based. Very easy cleanup. Highly recommend.

### ⭐⭐⭐⭐⭐ Review
*by S***R on 29 November 2022*

First time painter and this product was great for entry door. Water based paint flows easily while applying, very little absorption, presumed water based product would seep into wood but I was proven wrong. Barely used one fourth of a quart for a full entry door, both sides, two coats. No dripping, no mess, no stickiness, no toxins, no smell, dried in 30 minutes. Got the semi gloss finish which really looks nice, not too glossy or not too bland. Recommend to try the water based, it does not flake like the oil based paint as time progresses. West facing door, hoping to get 4-5 yrs of protection from texas sun.

### ⭐⭐⭐⭐ Review
*by V***L on 14 August 2021*

I usually use regular polyurethane satin for sealer on inside wood furniture. I bought this because I wanted to put an oak round topped wooden table on my front deck and knew it would be exposed to some moisture, so I ordered the outdoor spar varnish. It went on like a dream and the brushes cleaned up nicely. It was very humid summer day in south Texas so I noticed it needed a little longer drying and curing time than the polyurethane interior I have used in the past. It was easy to apply and I did not have to work it to keep it fron showing any brush strokes as you do with some products. It dried to a nice hard finish.

## Frequently Bought Together

- Minwax Water Based Helmsman Spar Urethane, Quart, Semi-Gloss
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- 24 Pcs Foam Paint Brushes, Wood Handle Sponge Brushes for Painting, Staining, Varnishes, and DIY Craft Projects (1'', 2'' and 3'')

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-01*