The Best Places to Buy Polyurethane Additives Online and In-Store

Author: Jesse

Aug. 18, 2025

Chemicals

Polyurethane & Varnish - Ace Hardware

Whether you're revitalizing furniture or starting anew, choosing the right stains and finishes is crucial. Applying varnish can enhance appearance and durability, ensuring your projects last. At Ace Hardware, we offer a wide array of varnishes and finishes available in-store and online.

Goto Yourun Synthetic Material to know more.

Varnish, Polyurethane, Epoxy and Lacquer: Key Differences

Understanding the differences between varnish, polyurethane, lacquer and epoxy will help you select the best product for your specific project. Each type has its unique characteristics and applications:

  • Varnish: A traditional wood finish with a warm amber tone that penetrates wood grain, varnish is applied after wood stain and is flexible and suitable for outdoor use. It may require multiple coats.
  • Polyurethane (Urethane): Polyurethane is a durable synthetic varnish that dries clear, forming a hard protective layer. It offers excellent moisture resistance and less yellowing over time.
  • Lacquer: With natural and synthetic options available, lacquer provides a high-gloss finish but can yellow in sunlight. It is often less suitable for outdoor projects than varnish or polyurethane.
  • Epoxy:Epoxy is a strong adhesive that cures chemically, forming a hard, durable surface. It is ideal for heavy-duty applications and resistance to chemicals and moisture.

Types of Varnish

Selecting the right type of varnish involves considering your project needs and the materials you're working with. Here are some common varnish options:

  • Spar varnish: Water-resistant, spar varnish is often used on ships. It is ideal for outdoor projects and protects fiberglass, coated metal, exterior wood and painted surfaces.
  • Exterior varnish: A type of spar varnish, exterior varnish has enhanced durability and UV resistance, making it a great option for wood surfaces.
  • Alkyd varnish: With fatty acids from natural oils, alkyd varnish is faster drying than other varnishes.
  • Acrylic varnish: Water-based acrylic varnish provides a crystal-clear coat that is excellent for wood and canvas protection.
  • Floor varnish: Durable and moisture-resistant, floor varnish extends the lifespan of flooring and offers a glossy or matte finish.

Types of Polyurethane

When deciding on polyurethane for your project, it's essential to consider factors like the intended use and exposure conditions. Here are several types to choose from:

  • Water-based polyurethane: This fast-drying polyurethane has low odor and is best for indoor furniture and light traffic areas.
  • Spar urethane: Moisture and UV-resistant, spar urethane is a flexible option perfect for outdoor surfaces like decks.
  • Oil-based polyurethane: Offering a rich finish with superior durability oil-based urethane is ideal for high-traffic areas but takes longer to dry.
  • Outdoor polyurethane: Formulated for outdoor conditions, exterior polyurethane resists moisture and weathering.

3 Quick Tips for Application

To achieve the best results with varnish or polyurethane, follow these recommended steps during the application process:

  1. Prep:Sand and clean surfaces with a soft cloth or compressed air.
  2. Apply:Thin some finishes if needed for easier application; use a natural bristle brush for an even coat.
  3. Finish: Allow drying, then sand and apply a second coat as needed.

Shop Urethane and Varnish Near You at Ace Hardware

If you're unsure whether polyurethane or varnish is right for your project, visit your local Ace Hardware for personalized guidance. Our knowledgeable staff can help you select the best varnish near you. You can also explore our online collection featuring brands like Minwax and Varathane.

Products | United States - Southern Polyurethanes

Types of Polyurethane Products We Offer

Your vehicle is a significant investment, and using superior coatings can help further protect it. Southern Polyurethanes provides the finest solutions, whether you need an epoxy primer with durable bonding power or a robust clearcoat to keep your car looking newer for longer.

Want more information on Polyurethane Additives? Feel free to contact us.

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Clearcoats serve as the protective armor for your paint job, shielding it from UV rays, environmental contaminants and long-term wear.

Primers lay the groundwork for adhesion and durability, ensuring that your topcoat adheres properly and lasts longer.

Urethane reducers enhance application efficiency, allowing for smooth and even coverage. Together, these products create a comprehensive solution for anyone looking to elevate their automotive projects.

With SPI‘s extensive range of clearcoats, primers and urethane reducers, you can trust that you’re using the best products available. Our commitment to quality ensures that your hard work pays off with stunning results that last.

Clearcoat

Southern Polyurethanes offers a variety of clearcoat options to suit different applications and preferences:

  • Universal Clear: Our Universal Clear was used in Pebble Beach Concours winners and other world-class restorations. In the last 20 years, countless bikes, rods and other projects have put this clear coat to the test. Universal Clear is easy to spray, hard to run and buffs easily, even months after application. 
  • Euro Clear: Our Euro Clear is well known and respected by body shops and the custom low rider market for its depth, gloss and friendliness for heavy flakes. It’s also a favorite among mobile repair specialists and woodworkers.
  • Production Clear: Our Production Clear is a budget-friendly, high-medium solid two-coat clear popular among body shops and DIYers alike. This product is perfect for shops looking to maximize efficiency while maintaining excellent results.
  • Speed Clear: Our Speed Clear is quickly making a name for itself because of its ease of buffing, gloss and lack of die-back and solvent pop. Like all of our other clears, Speed Clear has excellent UV holdout.

Primer

At Southern Polyurethanes, we offer top-class primers formulated to ensure optimal performance:

  • Epoxy Primer: We are known on enthusiast message forums worldwide for our Epoxy Primer. All four colors have outstanding adhesion to metals and aluminum, excellent chemical resistance, offer excellent protection from corrosion and is suitable for dual-action, dry and wet sanding. You can also cover the Epoxy Primer with body filler and 2K primer without sanding for a week.
  • 2K Primers: Our 2K Primers require no paint sealer, offer exceptional filling properties and take only 45 minutes to 1 hour to sand. They provide outstanding adhesion and durability across various surfaces while creating a solid foundation that enhances the longevity of your paint job.

Urethane Reducer

Our premium urethane reducer is formulated with quality solvents and competes with even the most expensive reducers. They are available in both national rule and low-VOC. Whether you’re working on a professional project or a personal restoration, our urethane reducers ensure that your paint flows and levels optimally.

For more Polyurethane Adhesiveinformation, please contact us. We will provide professional answers.

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