---
product_id: 259896776
title: "630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss"
brand: "minwax"
price: "$3295"
currency: MXN
in_stock: true
url: https://www.desertcart.mx/products/259896776-630510444-water-based-helmsman-spar-urethane-quart-semi-gloss
store_origin: MX
region: Mexico
---

# Water-resistant moisture barrier UV blockers for sun protection Flexible finish adapts to temperature 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss

**Brand:** minwax
**Price:** $3295
**Availability:** ✅ In Stock

## Summary

> ✨ Protect your wood, perfect your space! ✨

## Quick Answers

- **What is this?** 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss by minwax
- **How much does it cost?** $3295 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/259896776-630510444-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

- • **Weather Warrior:** Creates a durable barrier against rain and moisture for lasting protection.
- • **Sun-Savvy Shield:** Blocks UV rays to keep your wood vibrant and fade-free.
- • **Season-Ready Flex:** Special oils let your finish expand and contract with changing temps—no cracks, no worries.
- • **Crystal Clear Brilliance:** Semi-gloss finish enhances light woods and stains with a sleek, modern shine.
- • **Quick & Clean Application:** Dries fast and cleans up easily with just warm water—no harsh chemicals needed.

## Overview

Minwax 630510444 Water Based Helmsman Spar Urethane is a 1-quart, semi-gloss protective finish designed for both indoor and outdoor wood surfaces. Featuring UV blockers, moisture resistance, and flexible oils, it preserves wood’s natural beauty against sun, rain, and temperature changes. Ideal for doors, trim, cabinets, and furniture, it dries quickly and cleans up easily with water.

## Description

630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss

## 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 |
|---------------|-------|
| Liquid volume | 1 Quarts |
| Item form | Liquid |
| Global Trade Identification Number | 00027426630512 |
| Manufacturer | Minwax |
| UPC | 027426630512 |
| Part number | 630510444 |
| Item Weight | 1.02 Kilograms |
| Product Dimensions | 12.7 x 12.7 x 12.7 cm; 1.02 kg |
| Item model number | 630510444 |
| Size | 1 Quart |
| Color | Semi-Gloss |
| Style | Semi-Gloss (Water Based) |
| Finish | Semi-Gloss |
| Pattern | Urethane |
| Item Package Quantity | 1 |
| Included components | Minwax 630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

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

## Images

![630510444 Water Based Helmsman Spar Urethane, quart, Semi-Gloss - Image 1](https://m.media-amazon.com/images/I/61o8i1h0Y5L.jpg)

## Available Options

This product comes in different **Size Name, Color, Style** options.

## 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.

## 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 Mexico*
*Store origin: MX*
*Last updated: 2026-01-26*