High Performance Polyurethane Water Based Top Coat

It contains a UV Stabilizer to retard the finish from breaking down in sunlight.  Available in the following sheens: Flat, Satin, Semi-Gloss and Gloss.


Winner of Fine Woodworking's Best Overall Choice Award, High Performance Top Coat is the hardest, most durable consumer polyurethane top coat on the market today.

It contains a UV Stabilizer to retard the finish from breaking down in sunlight. And with its pure polyurethane durability, it can even be used on floors. This is the most durable product.

Available in the following sheens, Flat, Satin, Semi-Gloss, and Gloss.


Colors: Water White (dries clear). Note: Water topcoats can pull tannins from surfaces that are not properly prepped.

Sheen: Flat, satin, semi-gloss, gloss

Recoat/Dry Time: 1-2 hours

Coats Recommended: 3 

Cure Time: 21 days

Cleanup: General clean-up with soap and warm water recommended. Rinse thoroughly with clean water. For best results, clean all equipment with General Finishes Brush and Gun Cleaner. 

Coverage: 150 sq ft/qt

Recommended Use: Interior use only, Wood applications

Topcoat Recommendation: High Performance is self sealing and can be used alone, but it can also be used with GFs Sanding Sealer. 

VOC: < 275g/l (2.25 lb/gal)

General Finishes products should be tested to your complete satisfaction before using. General Finishes will not be responsible for any failure if our products are used in conjunction with other brands of finishes. We do not test General Finishes products with those of another manufacturer and will not accept liability if there is a compatibility issue.

WATER SPILLS AND DAILY USE: Clean water spills up as they occur during regular use and protect from heat. Although General Finishes products are water resistant, they are not impervious to water. Surfaces will not be damaged by spilled water so long as it is cleaned up promptly. We recommend using coasters to protect your wood from standing water and pot holders to protect from heat.



High Performance Polyurethane Water Based Top Coat Review 12/16/2010

4 years 42 weeks ago

By far the best finish for my projects that I have found in 50 years of woodworking. On kitchen table, this is the only product that stood up to the wear and normal use conditions.

Use of EF extender is a good idea in summer: higher heat/low humidity accelerate the drying too fast leaving brush stokes. With extender, and/or higher humidity, the finish levels out well.

High Performance Polyurethane Water Based Top Coat Review 02/06/2011

4 years 35 weeks ago

I used the High Performance Polyurethane for the first time on an entertainment center I made. I was very happy with the application process. It seems to be marginally thicker than the other popular water based poly which I have used in the past. I had no problems with dripping, sagging on vertical surfaces and small bubbles (foaming) forming on edges and at joints which I have had with the other poly. More expensive but well worth it.

High Performance Polyurethane Water Based Top Coat Review 02/11/2011

4 years 34 weeks ago

I used the High Performance Poly on a recent project and was absolutely thrilled with it's application. I have used the other popular water based product in the past with trouble with sagging on vertical surfaces and small bubbles on edges and where surfaces come together. I had none of those problems with High Performance Poly. It is well worth the higher price.

Love High Performance Poly

4 years 6 weeks ago

August 22, 2011

Re: EF High Performance Polyurethane (Gloss)

I have very seldom written to a manufacturer concerning one of their products, however, I am writing to you to tell you my experience with your EF High Performance Polyurethane.

Back in the mid to late 1990's, I was in the midst of a kitchen remodel where I built my own cabinets.  When it came time to apply a finish, I settled on using your EF High Performance Polyurethane as a topcoat over unstained figured maple.  I purchased this at the Rockler that was at that time located on Rand Road in Arlington Heights, IL.  I think I must have sprayed about 2 gallons to complete the job and had about 1 and a half gallons left over.

Since that time I moved from the Chicago land area to the Gulf Coast.  I recently came across the gallon and a half of finish mentioned earlier in my barn where it was put when we originally moved down in 2004.  My first inclination was to toss it as it surely couldn't be any good after over 15 years stored in an unheated and more importantly down here unairconditioned area. 

Instead I opened the half used container and expecting a foul odor was surprised that it smelled normal.  So then I decided to apply some of it to a piece of scrap cherry and again after several coats was surprised that it dried to a perfect shine.  Still not convinced, I tried spraying it with my HVLP sprayers and again it performed perfectly.

I have since used up that original half gallon on such things as pen/pencil sets, peppermills, banks and other craft items and am looking forward to starting the last gallon.

I just thought you would like to know that this product has far exceeded my expectations and is a pleasure to use (brush or spraying).

Best Regards,

Dan Domzalski
15050 Howells Ferry Rd.
Wilmer, AL 36587