1 Quart can of Minwax Helmsman Spar Urethane, Clear Satin finish for indoor/outdoor wood (Part #63205444).  

Minwax Helmsman Spar Urethane – Clear Satin, 1 Quart (63205444)

4 in stock

Please note that as this paint is mixed to order it cannot be returned or exchanged. For more information please see our full returns policy.

Minwax Helmsman Spar Urethane is specially formulated as a protective clear varnish for wood, designed to withstand the challenges of both interior and exterior environments. This premium urethane contains special UV blockers that significantly reduce the sun’s graying and fading effects, helping to preserve the natural color and beauty of your wood.

It forms a robust protective barrier against rain and moisture, crucial for outdoor applications. Furthermore, special oils in the formula allow the finish to expand and contract with the wood as seasons and temperatures change, minimizing the risk of cracking or peeling. The Clear Satin finish imparts a soft, unique sheen for a modern, cozy, and on-trend look, protecting the natural beauty of the wood without a high-gloss reflection. It is ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture, and more. Trust Minwax, America’s leading brand of wood finishing and wood care projects since 1904.   

Application Tips (General Guidance – Refer to Can for Full Instructions):

  1. Surface Preparation: Ensure the surface is dry and free of old finishes in poor condition, paint, wax, grease, polish, dirt, or other foreign matter. Sand to obtain a smooth, uniform surface. Remove all dust.   
  2. Staining (Optional): If desired, apply Minwax stain to unfinished wood surfaces. Follow directions for application and ensure the stain is completely dry before applying spar urethane.
  3. Stir Product: Stir Minwax Helmsman Spar Urethane thoroughly before and during use to ensure any settled solids are re-dissolved. Do NOT shake, as this can introduce bubbles.
  4. Application: Apply thin, even coats using a high-quality natural bristle brush (recommended for solvent-based/oil-modified finishes).
  5. Number of Coats: Apply multiple thin coats (typically 2-3 for general use, potentially more for heavy exposure areas or outdoor items) for best protection.
  6. Sanding Between Coats: For the smoothest finish and best adhesion, allow each coat to dry thoroughly as per label instructions, then sand lightly with fine-grit sandpaper (e.g., 220 grit). Remove all sanding dust before applying the next coat.
  7. Curing: Allow the final coat to dry and cure completely as per product label instructions before exposing to heavy use or outdoor elements.

Key Features:

  • Indoor/Outdoor Durability: Specially formulated for wood surfaces exposed to varied conditions.   
  • UV Protection: Contains UV blockers to reduce sun-induced graying and fading.   
  • Moisture & Rain Barrier: Protects wood from water damage.   
  • Flexible Finish: Accommodates wood’s natural expansion and contraction with temperature changes.   
  • Satin Sheen: Offers a soft, unique luster for a modern, cozy, and on-trend look.   
  • Versatile Applications: Ideal for doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, and outdoor furniture. 
  • Solvent-Based Formula: Traditional urethane for robust protection.

Specifications:

  • Brand: Minwax
  • Product Type: Spar Urethane / Protective Wood Varnish
  • Model Name: Helmsman Spar Urethane (MINWAX – 27426632059)
  • Manufacturer: The Sherwin-Williams Company
  • Part Number: 63205444
  • Item Model Number: 63205444
  • UPC: 0027426632059 (Primary; another listed: 795871188772)
  • Global Trade Identification Number (GTIN): 00027426632059
  • Sheen: Satin
  • Color: Clear
  • Base Type: Solvent-Based / Oil-Modified Urethane
  • Coating Description: Urethane
  • Material (Contents): Urethane
  • Size/Volume: 1 Quart (32 Fluid Ounces / approx. 0.946 Liters)
  • Recommended Uses For Product: Interior and exterior wood surfaces such as Doors, Windows, Trim, Bathroom Cabinets, Bar Tops, Kitchen Countertops, Outdoor Furniture.   
  • Application Method: High-quality natural bristle brush (recommended for solvent-based finishes).
  • Coverage Area: Described as “Moderate to High Coverage.” Refer to product label for specific sq ft (Typically around 100-125 sq ft per quart for spar urethane, but can vary).
  • Item Weight: 1 pound (16 ounces / approx. 0.45 kg)
  • Product Dimensions (Can Approx.): 4.25 (L) x 4.25 (W) x 4.89 (H) inches (approx. 10.8 x 10.8 x 12.4 cm)
  • Cleanup: Mineral spirits or paint thinner.
  • VOC Level: Information Not Provided
  • Item Form: Liquid
  • Style: Satin
  • Compatible Material: Wood
  • Item Package Quantity: 1
  • Number Of Items / Pieces: 1
  • Included Components: 1 x Quart Can of Minwax Helmsman Spar Urethane, Clear Satin (MINWAX – 27426632059)
  • Batteries Included?: No
  • Batteries Required?: No
  • Warranty Type: No Warranty (as per details, or as per manufacturer policy)

Product Questions

Q1: What makes Spar Urethane different from regular interior Polyurethane?

Spar Urethane, like Minwax Helmsman, is formulated with special oils for greater flexibility, allowing it to expand and contract with wood that’s exposed to temperature and humidity changes outdoors. It also contains UV blockers to protect against sun damage. Regular interior polyurethane is harder and less flexible, making it ideal for stable indoor environments but prone to cracking if used outdoors.  

Q2: Is the Satin finish very shiny? How does it compare to Semi-Gloss?

Satin finish offers a soft, subtle luster or low sheen. It’s less reflective than Semi-Gloss, providing a more muted and contemporary look that can also help hide minor imperfections better than a glossier finish. Semi-Gloss has a more noticeable shine.

Q3: Can I use this on my wooden boat above the waterline?

Spar urethane was traditionally developed for marine applications on wooden spars of ships, so it’s designed for excellent water resistance and flexibility. Minwax Helmsman is suitable for many exterior wood items, including outdoor furniture and elements on boats that are above the waterline and not constantly submerged. Always follow specific marine finishing best practices for boat applications.  

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