Enduro Clear Poly is a high-performing commercial-grade water-based topcoat fortified with polyurethane that delivers a clear, tough, durable and abrasion-resistant finish. It does not require a topcoat. Clear Poly can be used on any project where more solids (28%) and durability are desired.

Please click the below headers to reveal the instructional info for this product.

Step 1: Preparation for Clear Poly

All wood projects require preparation sanding, and all existing finishes require prep cleaning and sanding. If you skip this critical step, your finish may fail.

Preparation for Raw Wood or Raw Wood Projects That Are to be Stained

Sanding Schedule: 120-grit followed by 150- or 220-grit sandpaper.
Remove dust with a vacuum, compressed air, an oil-free tack cloth or a water-dampened rag.
Let dry completely before applying GF product.
Do not over-sand with fine-grit sandpapers; this will close and seal the wood grain, preventing ideal color absorption.
Do NOT use steel wool with water-based finishes; the particles will get trapped in the finish and rust.

Preparation for Projects with an Existing Finish (Sealed Surface)

For high-use areas with heavy grime build-up and oil from hands, give your project a deeper cleaning.

Scuff clean with a Scotch Brite™ pad and a 50:50 mix of denatured alcohol and water. Dry 1-2 hours. Avoid cleaning with products containing phosphates (salt), which can linger in the substrate and produce a white haze. If your project requires a deeper cleaning, see Power Prep Cleaning Highly Used Existing Finishes below.
Sand lightly with a fine-grade (220-320) foam sanding pad.
Remove dust with a vacuum, compressed air, an oil-free tack cloth or a water-dampened rag.
Let dry completely before applying General Finishes product.

Power Prep Cleaning Highly Used Existing Finishes

For high-use areas such as kitchen cabinets or table tops with heavy grime build-up and oil from hands, give your project a "Power" clean.

Scrub clean with a detergent, such as Spic and Span or Dawn, using a Scotch Brite™ pad.
Rinse well with water.
Scrub clean with a Scotch Brite™ pad and a 50:50 mix of denatured alcohol and water. Dry 1-2 hours.
Sand lightly with a fine-grade (220-320) foam sanding pad.
Remove dust with a vacuum, compressed air, an oil-free tack cloth or a water-dampened rag.
Let dry completely before applying General Finishes product.

Alternative Cleaning Solutions For Existing Finishes (Not as aggressive or effective as denatured alcohol; requires rinsing.)

50:50 mix of bleach and water
50:50 mix of vinegar and water
Mineral spirits can be used when working with water-based products, but only if the surface is thoroughly rinsed and allowed to dry for 72 hours.
If you use with products containing phosphates (salt), which can linger in the substrate and produce a white haze, be sure to rinse thoroughly.

Step 2: How to Apply General Finishes Clear Poly

CAUTION: Do NOT use GF Clear Poly or any other clear coat, over white or light paints such as General Finishes Milk Paint, or General Finishes Enduro White Poly as it may cause yellowing. Any clear coat can become reactive over wood substrates or existing finishes, causing tannin or dye bleed-though regardless of priming. All of GF's white paints are self-sealing and do NOT require a topcoat.

General Finishes Clear Poly Application Steps

Stir to reincorporate solids that have settled to the bottom of the can before and throughout the application process.
Thin as desired with distilled water; start with 5%, increase up to 10% by volume. Increase open time, if needed, with up to 5% General Finishes Extender if allowed by local regulations. GF Extender will improve flow and leveling and increase open time, which is helpful in dry climates. California Residents: Adding more than 2% of GF Extender will make the products non-compliant per SCAQMD Regulations. GF assumes no liability for the improper use of these products.
Apply 3 coats of Clear Poly. More coats will not improve durability.
- Spray Application: Before spraying, strain topcoat through a fine-mesh filter. Spray wet films at 3-5-mil thickness. HVLP: 1.1mm-1.3mm spray tip, medium air cap. Verify tip sizes with your equipment supplier. See our general guide for spray tip sizes. Keep your gun at a 90° angle, 6-8" from the surface. On large, flat areas, use wet, even patterns 6-8" wide. For narrow surfaces, reduce the fan pattern to 2-3" wide to reduce overspray. Overlap each pass 25% to conceal lines. Wear a full filter respirator (NIOSH/MSHA approved) and work in a ventilated space.
- Face frames and drawers on cabinets: Enduro professional products are engineered to be spray-only but can be successfully applied by hand to cabinet face frames or edges with a brush, pad or small, cabinet-specific roller such as Whizz or AllPro Velour brand. Larger areas may not level with a hand application. ALTERNATIVE: Use the same sheen of General Finishes High Performance Topcoat on areas that must be brushed.
If a faster build is desired over raw wood, use General Finishes Sanding Sealer for the 1-2 coats, followed by 2 coats of Clear Poly.
Dry 2+ hours between coats in ideal conditions: 70°F 20°C; 50% humidity. Be sure to allow adequate dry time. You can tell if a water-based finish is dry if it forms a powder when lightly sanded with a fine-grade (220-320) foam sanding pad. If in doubt, wait longer. Rushing the dry time can cause "blush", which is clouding in the finish due to moisture trapped between the layers. Increase dry time if:
- Humidity is over 80%
- 3+ coats are applied
- Thick coats are applied
- Applying over an existing sealed finish
- Applying over products from other brands
- Layering General Finishes water- and oil-based products:
- To accelerate dry time in humid conditions, add General Finishes Accelerator and work in a space with good ventilation and air movement. If you decide to re-coat before the recommended time, test dryness.
Finish sand between coats with a fine-grade (220-320) foam sanding pad to improve smoothness and adhesion.
Remove dust with a vacuum, compressed air, an oil-free tack cloth or a water-dampened rag.

Cure Time

Water-based finishes cure and harden for full use after 21 days in ideal conditions. Avoid placing heavy objects on surfaces that have not completely cured. Treat gently, and do not clean with commercial products during the curing period.

Warning: Do not use water-based products with Linseed Oils or Danish Oils.

Yellowing & Clear Topcoat

As is true of most "water-white" topcoats, General Finishes water-based topcoats dry clear over non-reactive substrates, such as plastic or metal, except General Finishes Enduro-Var, which ambers. When white paint sealed with a water-white topcoat is applied to something as unpredictable as wood, all bets are off and the reason for yellowing is often unknown. It can be caused by topcoat activating tannins in raw wood or aniline dyes, stains, or contaminants in a pre-existing finish. This is most evident when using BRIGHT WHITE paint and most prevalent in sculpted details of furniture where the topcoat can collect, intensifying color change to an unacceptable level.

There is no reliable way to predict whether yellowing will occur and to what degree. Every existing finish is different and we rarely know the finishing provenance on an existing piece. Every tree is different and every piece of wood is unique. Raw wood can bleed tannins immediately after the topcoat dries or months later with seasonal temperature changes. Oak, pine, mahogany, and douglas fir are particularly prone to bleed-through.

Summary

Whites have a lower “hide” quality and are more transparent than most other colors. Nearly all bright whites require additional coats to achieve the desired color and minimize color variation. This can increase the cost of paint finishing. Always include a clause in your contracts addressing the need for additional coats to achieve coverage.
All bright white paint will yellow slightly with time, with or without topcoat. You have probably tried to touch up white woodwork in your home after several years and noticed the new paint is brighter.
The underlying finish or wood species can affect the final color of light paint.
Details and inside corners are difficult to cover with any paint color, but it tends to be more noticeable with whites. This is a naturally occurring phenomenon in paint application and does not necessarily constitute a defect in the paint finish or your technique.
The more porous the paint, such as a chalk paint, the more likely that yellowing will occur. The topcoat is seeping through the spaces caused by the larger particles of filler that give Chalk Paints their texture.

Tips to Prevent Yellowing

If it is a low-use project, use a premium white paint that is self-sealing and does not require a topcoat. A clear topcoat is not required on General Finishes Milk Paint for increased durability, as it is a self-sealing, exterior-rated coating with high durability and chemical and water resistance. However, topcoats do provide a smooth surface that is easier to clean and boosts durability for high-use projects, such as tabletops and kitchen cabinets.
Use a professional spray such as General Finishes Enduro White Poly. It has "increased topcoat properties," is a standalone finish when 3 coats are applied, and does not require sealing with a topcoat.
We recommend using General Finishes Stain Blocker, an engineered chemical barrier, to prevent persistent bleed-through for interior-use projects.

Stain Blockerr does not adhere to melamine cabinet veneers.
Stain Blocker cannot be tinted.

Always test your project's ENTIRE finishing schedule (from cleaning to topcoat) on an inside door or a more hidden area of the piece. This will not help if the yellowing occurs later, but at least you will know if there is an immediate problem.
Avoid painting period furniture, such as a 1940s serpentine mahogany desk, with light colors. The pieces were often finished in stain that contained aniline dyes, which cast a pinkish bleed-through under light paint. Not every piece of furniture is suitable for upcycling with a light paint color. Pine, mahogany, and furniture of the 1940s and 50s are a red flag.
Last, not all manufacturers' topcoats are compatible with other finishes and may react with a color change. Always follow best practices by not rushing, and testing to your satisfaction first.

Knots

Knots in wood tend to bleed and are dense, making paint and stain adhesion a challenge. Stain Blocker may improve adhesion and prevent bleed-through for painting projects. Pine knots are especially difficult to cover with white or light paints. If you decide to paint over them, apply 3 coats of Stain Blocker first; however, we cannot guarantee adhesion or bleed-through blockage. You are better off using a dark paint on pine.

Storage of Water-Based Products

Please be mindful of the manner in which water-based products are stored and how long they have been in storage. They are not a forever product.

Life of Product

Water-based products do not last forever, even when unopened. General Finishes products are best used within 1 year of the manufacture date listed on the can. However, the life of the product may be extended with proper care and storage (see Storage Tips below).

Water-based products can last 3-5 years if the can is unopened, in good condition and stored in correct temperatures.

Product that is 3 years old will not look like product that is 6 months to 1 year old. You will see more stratification or separation as the product ages. Always stir thoroughly before using.

Foul Smell

If your product has a foul smell, it is contaminated and no longer in useable condition.

Clumps & Settling

Gravity can cause some solids to settle on the bottom of the can and slight separation on the top. This is normal. If working with older product stir with a paint mixing attachment on a drill.

If the solids dissolve and clumps smooth out after mixing from the bottom, the product is in good condition for use.

Inability to reincorporate large, chunky lumps after stirring for several minutes is an indication that the product has frozen and can no longer be used.

Storage Tips

Water-based finishes crystalize and form a skin due to evaporation when the air-tight seal on a can is broken at first use. The following best practices will increase the life of your product:

Pry open sealed lids with a paint can opener by hooking under the lid's rolled edge. The use of a screwdriver can disfigure the rim and lid, impairing a complete seal.
Keep lid closed while working. Pour what you will use into a bowl, paper cup, or plate, and close can lid as you work.
Clean the chime of the can thoroughly with a paper towel before closing to create a complete seal. Product falling into the chime can be minimized by using a pouring lid, such as Fitsall. Avoid wiping used brushes on the lid.
Pound the lid in place using a rubber mallet to avoid distorting the chime or lid. Dents in the lid from direct contact with a hammer can impair a complete seal. Alternatively, place a flat piece of wood over can lid and firmly pound shut.
Store in moderate temperatures. Avoid temperatures below 50°F/10°C or above 100°F/26°C. Keep from freezing. Frozen and heat-damaged product cannot be revitalized. Temperature-controlled spaces, such as a basement, are ideal for storage. Do not store product in an attic, garage, in direct sunlight, or next to something warm like a water heater or furnace.
Store can upside down to create a liquid seal, minimize evaporation and reduce the chance of crystallization. Decant remaining product from the can before stirring.
Decant leftovers to a smaller container when the finish is almost used up. Alternative storage containers for water-based products are plastic FIFO bottles or glass bottles. Do not fill metal-lidded containers completely to prevent them from rusting.

The following water-based product mistures can be stored:

Product thinned with up to 15% General Finishes Extender or General Finishes Accelerator, with the exception of thinned General Finishes Water Based Wood Stain.
Mixtures involving colors & sheens within the same product line, such as:

High Performance Satin + High Performance Gloss
Snow White Milk Paint + Coastal Blue Milk Paint
Amber Dye Stain + Merlot Dye Stain

The following product mixtures should NOT be stored:

Any water based product with thinned tap water; water often contains bacteria that will adversely affect stored paint.
Topcoat + Stain or Paint
Milk Paint + Chalk Style Paint
Water Based Wood Stain + Dye Stain

Furniture Care & Maintenance

Cure First

You have just finished applying a fine furniture finish. Treat gently until the paint or topcoat have fully cured. Allow 21 days for a water-based finish to cure and 30 days for an oil-based finish to cure before cleaning.

Regular Cleaning and Maintenance

Remove dust with a water-dampened cloth. Dust can build up over time and may scratch or dull finishes if not removed regularly.
Remove fingerprints, cooking fumes and smoking residue with mild soap and water. These contaminants will not harm the finish, but they accumulate on surfaces and dull the original luster.
As with all fine furniture finishes, avoid using furniture polish, cleaners or dusting sprays that contain silicone, alcohol, ammonia and anything acidic. Exception: We have successfully cleaned with Clorox wipes.
Clean up water, alcohol and food spills in a timely manner and use placemats & coasters to protect the finish.
Future finishes or touch-ups may not adhere properly or perform as desired over a contaminated surface. Some contaminants, such as silicone, seep through finish into the wood and often cannot be removed.
Avoid excessive exposure to direct sunlight, high temperatures or high humidity. These can damage furniture and finishes.

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