Minwax® Helmsman® 350 VOC Spar Urethane

Minwax® 350 VOC Helmsman® Spar Urethane is specifically formulated to protect wood against nature’s toughest conditions. Helmsman® forms a protective barrier against rain and moisture and its special oils allow the finish to expand and contract with the wood as seasons, temperatures, and humidity change. The enhanced ultraviolet absorbers found in Helmsman® reduce the graying and fading effects of the sun.


  • Contains UV blockers to reduce the sun's graying and fading effects
  • Forms a protective barrier against rain and moisture
  • Special oils allow the finish to expand and contract with the wood as seasons and temperatures change
  • Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture

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Application Directions

  • Preparation Warning
    Removal of old paint by sanding, scraping or other means may generate dust or fumes that contain lead. Exposure to lead dust or fumes may cause brain damage or other adverse health effects, especially in children or pregnant women. Controlling exposure to lead or other hazardous substances requires the use of proper protective equipment such as a properly fitted respirator (NIOSH approved) and proper containment and cleanup. For more information, call the National Lead Information Center at 1-800-424-LEAD (in US) or contact your local health authority.
  • PREPARATION
    • Surface must be dry and free of paint, wax, grease, polish, old finishes in poor condition or any foreign matter.
    • Sand to obtain a smooth, uniform surface. Remove all dust with a damp cloth.
    • If desired, apply stain, such as Minwax® Wood Finish™ Stain to unfinished interior wood surfaces. Follow directions for application instructions and dry times.
    • Stir well before and occasionally during use.
  • APPLICATION
    • Apply a thin coat of Helmsman® Spar Urethane using a high-quality, natural bristle brush. On unfinished wood, apply sufficient material to seal open joints, edges and end-grain.
    • Let dry at least 6 hours, then sand entire surface lightly with very fine sandpaper (220 grit) to ensure an even finish and proper adhesion of additional coats.
    • Apply second coat. If a third coat is desired, repeat Step 6 before applying. Note: For exterior surfaces or for previously unfinished wood, 3 coats are recommended.
    • After final coat, allow 24 hours before normal use.
  • CAUTIONS
    Special Note: This product has been formulated to comply with the environmental regulations limiting V.O.C. (Volatile Organic Compound) content. It contains high concentrations of quality resins, which lead to a thicker consistency than ordinary urethanes. Be sure to follow label directions carefully, especially as they pertain to coverage rates and the application of thin coats. DANGER: Rags, steel wool, other waste soaked with this product, and sanding residue may spontaneously catch fire if improperly discarded. Immediately place rags, steel wool, other waste soaked with this product, and sanding residue in a sealed, water-filled, metal container. Dispose of in accordance with local fire regulations. CAUTIONS: CONTAINS ALIPHATIC HYDROCARBONS. Contents are COMBUSTIBLE. Keep away from heat and open flame. VAPOR HARMFUL. Use only with adequate ventilation. To avoid overexposure, open windows and doors or use other means to ensure fresh air entry during application and drying. If you experience eye watering, headaches, or dizziness, increase fresh air, or wear respiratory protection (NIOSH approved) or leave the area. Avoid contact with eyes and skin. Wash hands after using. Keep container closed when not in use. Do not transfer contents to other containers for storage. FIRST AID: In case of eye contact, flush thoroughly with large amounts of water for 15 minutes and get medical attention. For skin contact, wash thoroughly with soap and water. In case of respiratory difficulty, provide fresh air and call physician. If swallowed, call Poison Control Center, hospital emergency room, or physician immediately. DELAYED EFFECTS FROM LONG TERM OVEREXPOSURE. Contains solvents which can cause permanent brain and nervous system damage. Intentional misuse by deliberately concentrating and inhaling the contents can be harmful or fatal. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. DO NOT TAKE INTERNALLY. KEEP OUT OF THE REACH OF CHILDREN.

Data Sheets:

Product Number Base Container Size SDS
027426132153 Clear 1 Gallon SDS
027426132252 Clear 1 Gallon SDS
027426132207 Clear 1 Gallon SDS