Waterlox MARINE Finish Application Guide

Waterlox MARINE Finishes are exterior finishes for exterior projects in direct sunlight/UV. Waterlox MARINE Finishes are available in two gloss levels, High Gloss and Satin Sheen. Waterlox MARINE enhances the color, richness, and grain of wood with an exterior spar-varnish finish system.

Getting Started

What You’ll Need

Safety

  • Chemical resistant gloves and eye protection (e.g.: safety glasses and/or goggles), hearing protection (if using buffing equipment).
  • NIOSH/MSHA-approved respirator during application (for organic vapor).
  • NIOSH-approved dust mask for sanding (if sanding to bare wood).
  • Read and carefully follow label instructions, guidelines, warnings and cautions.

General

  • Vacuum, broom and clean, lint-free rags.
  • Paint thinner or mineral spirits.1
  • Painter's tape.
  • Box fan(s) to insure cross-ventilation and adequate dry.

Product Options

Waterlox Sealer Product Options

ONE of the below WATERLOX Sealers is REQUIRED to seal the wood prior to the application of Waterlox MARINE Finish as the first coat of the system. Choose one of the following sealers.

  • MARINE SEALER – TB 3809
    This Tung Oil-based sealer seals the wood from within because it is lower in solids than the MARINE Finishes. It also beautifies, richens and shows off the depth of the wood. One to two coats (depending upon the hardness of the wood) are required for adequate film build.

  • TRUETONE® Color-Infused Tung Oil – TB 70XX
    This innovative high-solids, VOC compliant, Color-Infused and Tung Oil-based sealer and stain seals the wood which minimizes grain raise and tannin/water interactions.1 It also beautifies, richens and shows off the depth of the wood. Must be driven into the wood and excess removed.

  • UNIVERSAL Tung Oil Sealer (UTOS) – TB 1000
    This innovative high-solids, VOC compliant, Tung Oil-based universal sealer seals the wood which minimizes grain raise. It also beautifies, richens and shows off the depth of the wood. Must be driven into the wood and excess removed. One coat is required for adequate film build.

  • ORIGINAL Sealer/Finish – TB 5284
    This Tung Oil-based sealer seals the wood from within because it is lower in solids than the MARINE Finishes. It also beautifies, richens and shows off the depth of the wood. One to two coats (depending upon the hardness of the wood) are required for adequate film build.

Waterlox MARINE Finish Product Options

Use 2 coats of the finish. These are spar-varnish, resin-modified Tung oil finish that form an elastic, waterproof film to protect wood surfaces in direct UV/sunlight.

  • MARINE Finish High Gloss – TB 3940
    Results in an 80-85° gloss finish.

  • MARINE Finish Satin Sheen – TB 6032
    Results in a 40-50° gloss finish.

Coverage

  • One gallon = approx. 500 ft2 per coat
  • One quart = approx. 125 ft2 per coat
  • One 2 oz bottle = approx. 7 ft2 per coat

Tools

Not recommended for use with a roller.

For Large Projects:

  • An 8-12" lambswool applicator and a paint pan large enough for chosen applicator.
  • A quality natural bristle brush or paint pad recommended for use with oil-based finishes for cutting in edges.
  • DO NOT APPLY IN DIRECT AND INTENSE SUNLIGHT FOR THE FIRST 3-4 HOURS. THIS MAY CAUSE WRINKLING OR IMPROPER DRY.
  • Abrasive pads for sanding and smoothing between coats (if necessary):
    • Maroon pads or surface preparation pads (SPP pads) are recommended.
    • Also 320-grit sandpaper, 0000 steel wool or other equivalent abrasive.

For Small Projects:

  • A quality natural bristle brush, lambswool hand pad or paint pad recommended for use with oil-based finishes.
  • DO NOT APPLY IN DIRECT AND INTENSE SUNLIGHT FOR THE FIRST 3-4 HOURS. THIS MAY CAUSE WRINKLING OR IMPROPER DRY.
  • Abrasive pads for sanding and smoothing between coats (if necessary):
    • 320-grit sandpaper, 0000 steel wool or other equivalent abrasive.
Surface Preparation

Testing

Waterlox MARINE will alter the appearance of the wood. Proper testing of the entire process should be completed before beginning.

  • Not recommended for use on new pressure-treated wood (requires a 6 - 8 week weathering period) or lumber that is water-repellent treated (requires a minimum 12 month weathering period).
  • Always remove any mildew, fungi, or nail rust prior to application with either oxalic acid or a bleach solution. Always clear-water rinse the surface after cleaning.

Preparation

  • Vacuum the surface thoroughly with and across the grain to remove as much sanding dust as possible, including all surfaces that could hold dust.
  • Lightly dampen a rag with mineral spirits or paint thinner and wipe the wood surface to pick up any remaining sanding dust. Allow the mineral spirits to evaporate (15-30 minutes) before applying.1
  • Tape off or cover any surfaces not being coated.
Application and Product Handling

Product Handling

  • Waterlox MARINE Finish High Gloss – NO shaking or stirring required or advised.
  • Waterlox MARINE Finish Satin Sheen - Shake or stir contents before use. Stir contents occasionally during use.
    • BATCHING. If more than one container of finish is needed to complete a coat, the containers should be batched together before starting the coat.

Application Steps

For best results:

  • Apply when surface and air temperatures are between 45° F and 90° F (7-35° C).
  • Saturate all end grains well and apply in the direction of the grain.
  • Moisture content of wood should be below 18%.
  • Do not apply in direct sunlight or when surface is hot to the touch.
  • Do not apply when rain or dew is expected within 4 hours.
  1. Apply Waterlox MARINE Sealer, TRUETONE® Color-Infused Tung Oil, UTOS, ORIGINAL Sealer/Finish or following proper application and drying directions. Apply two (2) coats of Waterlox MARINE Finish at the chosen gloss level with 24 hours between coats.
  2. Pour out the amount of product needed for the first coat.
    • If working from a previously opened container, straining through a medium to fine mesh paint strainer may be required.
  3. Apply first coat of Waterlox MARINE Finish with the grain and at the recommended spread rate.
  4. Allow to dry for 24 hours.
  5. Sanding between coats is not required for adhesion but may be done for aesthetics. Lightly sand the surface with a synthetic abrasive pad (medium/maroon recommended).
  6. If sanding, lightly dampen a mop, lint-free rag or micro-fiber mop with water or regular mineral spirits1 (paint thinner) to remove dust. Allow to evaporate 30-45 minutes (until dry appearance) before applying Waterlox MARINE Finish.
  7. Apply the second coat of Waterlox MARINE Finish.

Application Procedure

Large Projects:

  1. Clean the new, unused applicator with painter’s tape, lint roller, in the dryer or with a vacuum before starting.
  2. Pour out the Waterlox MARINE Finish product into a paint tray.
  3. Dip the applicator fully into the paint tray to saturate it.
  4. Following the grain, pull the applicator (spread the finish) toward the opposite wall evenly. Hold the applicator with light pressure and at a slight angle to maintain a wet edge.
    • To avoid lap marks, maintain a wet edge by overlapping sections previously finished by several inches. Be sure to feather the finish at every start and stop.
  5. When cutting in edges do not work more than 5-10 feet from the field-applied finish.

Small Projects:

  1. Clean the new, unused lambswool applicator or pad with painter’s tape, lint roller, in the dryer or with a vacuum before starting.
  2. Pour out the amount of finish needed for the job or dip applicator into the can and spread evenly.
  3. Following the grain, lightly drag the applicator or brush from one end of the project to the other to remove applicator marks. Hold the applicator or brush with light pressure and maintain a wet edge.
  4. Wipe off any drips with a clean rag if necessary.

Clean Up and Disposal

Clean application tools immediately with regular mineral spirits1 or paint thinner. Do not pour extra product down the drain! Allow rags that are wet with product to dry in a well-ventilated area before disposal. Properly dispose of rags, applicators and waste. DANGER! Rags, steel wool or waste soaked with Waterlox may spontaneously catch fire if improperly discarded. Immediately after use, place rags, steel wool or waste in a sealed water-filled metal container. Read carefully other cautions on the product label.

Storage

  • Visit waterlox.com/storage. Keep container closed when not in use. Read carefully and follow all label instructions, guidelines, warnings and cautions.

Drying and Ventilation

  • Waterlox MARINE Finish will dry through exposure to oxygen (oxidation).
  • Dry time before recoating is 24 hours.
  • Poor ventilation, high humidity or cool temperatures may increase dry times.
  • Read carefully other directions and cautions on the product label.
  • For full ventilation details, visit Drying, Ventilation, Curing and Circulation.
Re-Coat and Maintenance

Waterlox MARINE Finishes are tough enough to protect against moisture, sun/UV and harsh weather, and are easy to maintain. As surface(s) age and UV degrades the film, the gloss level will soften and reduce. Clean the surface and re-coat with the Waterlox MARINE Finish formula used as the last coat in the system.

To determine if recoating is necessary, spray water lightly on the wood surface. If the water darkens the wood, it's time to recoat. Maintenance schedules vary widely according to the location and exposure of the wood surface to the harmful outdoor elements as follows.

Little or No Direct Sunlight
For wood surfaces in a location that receive little or no direct sunlight, re-application may never be needed. To prevent a build-up of dirt, mold or bacteria, use a low-psi power washer, mop or sponge with our Waterlox Cleaner Concentrate or a mild solution of soap or white vinegar to wash the surface and rinse with clear water.

  • Never use phosphorous or ammonia-based cleaners. An occasional washing with a 5% bleach and water solution is acceptable, but not on a reoccurring basis (weekly or more).

Partial or Full Sunlight
For wood surfaces in a location that receive partial or full sunlight, the above cleaning procedure should be followed as often as needed to reduce the accumulation of dirt build-up. Conduct a visual inspection of the surface, looking for the following to determine re-coating:

  • Noticeable graying of the wood surface.
  • Whitening of the surface (matte or no gloss appearance) or any other color change.
  • Staining by natural elements (e.g.: water run off lines, rust staining from gutters or another metallic source). Wash these areas to remove the staining prior to re-coating.
  • Erosion or suspected film loss.

Use a low-psi power washer, mop or sponge with our Waterlox Cleaner Concentrate or a mild solution of soap or white vinegar to wash the surface and rinse with clear water. Once the surface is clean and dry, apply another full-bodied coat of Waterlox MARINE Finish.

Extreme Conditions
For wood surfaces in a location subject to extreme conditions, such as near the ocean or near an industrial setting where wind, rain, dirt, salt and intense sunlight are prevalent, the surface may need to be cleaned and re-coated once or twice per year.

Mold and Mildew

Visit our Mold and Mildew FAQ for more information.

This guide is intended to be a standard application procedure. See the MARINE product page for additional guides and tips.

Warnings

DANGER! COMBUSTIBLE LIQUID AND VAPOR CONTAINS MINERAL SPIRITS. VAPOR HARMFUL. MAY AFFECT THE BRAIN OR NERVOUS SYSTEM CAUSING DIZZINESS, HEADACHE OR NAUSEA. CAUSES EYE, SKIN, NOSE AND THROAT IRRITATION. NOTICE: Reports have associated repeated and prolonged occupational overexposure to solvents with permanent brain and nervous system damage. Intentional misuse by deliberately concentrating and inhaling the contents may be harmful or fatal. Keep away from heat and flame. Prevent build-up of vapors by opening all windows and doors to achieve cross-ventilation. Use only with adequate ventilation. Do not breathe vapors or spray mist. Ensure fresh air entry during application and drying. If you experience eye watering, headache or dizziness or if air monitoring demonstrates vapor/mist levels are above applicable limits, wear an appropriate, properly fitted respirator (NIOSH/MSHA approved) during and after application. Follow respirator manufacturer’s directions for respirator use. Close container after each use. Avoid contact with eyes, skin and clothing. Wash thoroughly after handling. FIRST AID: In case of eye contact, flush immediately with plenty of water for at least 15 minutes and get medical attention; for skin, wash thoroughly with soap and water. If you experience difficulty in breathing, leave the area to obtain fresh air. If continued difficulty is experienced, get medical assistance immediately. If swallowed, do not induce vomiting. Call physician immediately. If spilled, contain spilled material and remove with inert absorbent. Dispose of contaminated absorbent, container and unused contents in accordance with local, state and federal regulations.

WARNING! Cancer - www.P65Warnings.ca.gov

WARNING: If you scrape, sand or remove old paint, you may release lead dust. Lead is toxic. Exposure to lead dust can cause serious illness, such as brain damage, especially in children. Pregnant women should also avoid exposure. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or log onto www.epa.gov/lead.

KEEP OUT OF REACH OF CHILDREN


1 If regular mineral spirits or paint thinner is not available in your area, there are alternatives. Visit waterlox.com/mineralspirits.