350 VOC Polyurethane

Support Documents




CAUTIONS: Contents are COMBUSTIBLE. Keep away from heat and open flame. CONTAINS: ALIPHATIC HYDORCARBONS.

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/MSHA TC23C or equivalent) 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 EXPOSURE. 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.


This product contains chemicals known to the State of California to cause cancer and birth defects or reproductive harm.



DuraSeal® Polyurethane 350 VOC is a clear oil-based, durable protective finish specially formulated for hardwood floors.

Available in Satin, Semi-Gloss and Gloss.

Surface 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.


Polyurethane will have an ambering effect when applied over light colored surfaces. Do not apply Polyurethane over floors previously finished with wax, shellac containing wax, lacquer, or stains containing wax or stearates. STIR WELL BEFORE AND OCCASIONALLY DURING USE


New Wood Floors

  1. Properly prepare surface according to NWFA specifications.
  2. If desired, apply DuraSeal® Quick Coat or DuraSeal® Penetrating Finish according to label directions. Allow to dry thoroughly.
  3. Apply Polyurethane with a brush or a lambswool applicator in thin coats at a coverage rate of 500 square feet per gallon. NOTE: Application of thicker coats results in extended dry time.
  4. Allow to dry at least 8 hours. Abrade thoroughly using DuraSeal® Pre-Treat Pad. Vacuum thoroughly and tack floor with a cloth moistened with mineral spirits to remove dust. Apply a second coat of Polyurethane in the same manner as the first (step 3 above).
  5. If desired, additional coats of Polyurethane may be applied. Allow each coat to dry at least 8 hours. Abrade thoroughly between each coat using a DuraSeal® Pre-Treat Pad.

Screen and Recoat

  1. Clean floors with an abrasive pad moistened with mineral spirits to remove all grease, oil, dirt, and soap residue. Screen using No. 100 grit screen. NOTE: Do not apply DuraSeal® Polyurethane over floors previously finished with shellac, lacquer, wax or stains containing stearates or wax.
  2. Proceed from step 3 under New Wood Floors.

Old Wood Floors

  1. Sand the floor to bare wood according to NWFA approved methods. Make sure to remove all existing stain and finish.
  2. Remove all dust with a broom and/or vacuum and tack floor with a cloth moistened with mineral spirits.
  3. Proceed from step 2 under New Wood Floors.


Approximately 8 hours. Allow to dry overnight for light traffic. Allow to dry for 30 days before replacing furniture and rugs. NOTE: Drying time will be increased by high humidity, low temperature, lack of air movement or applying too heavily.


Approximately 500 square feet per gallon.


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.

For easy cleanup, use mineral spirits or paint thinner, following manufacturer's safety instructions.


Nonphotochemically reactive. Do not thin.

Physical Properties

    Testing Method
Resin type Linseed Oil-Modified Polyurethane
Solvent Mineral Spirits
Odor Mild Hydrocarbon
Luster (@ 60°)
Satin 25 +/- 5
ASTM D 523
Semi-Gloss 50 +/- 5
ASTM D 523
Gloss 90 min.
ASTM D 523
No. of coats 2 - 3
Recoat 8 hours
ASTM D 1640 &
Final coat 24 hours (light use)
Gardner circular
Dry film thickness 1.0 mil/coat
Flash point >>101®F (SETAFLASH*) SETAFLASH*
> ASTM D 3828
Applicator Natural bristle or lambswool
VOC (grams/liter) 350 maximum ASTM D 3960
Coverage (sq. ft/gal) Approx. 500
% Solids 50.0 - 56.0 ASTM D 2369
Pounds/gallon 7.8 - 8.0
Viscosity (centipoises) 100 - 180

*SETAFLASH is a registered trademark of Stanhope-Seta Limited.

Available In

Type Size Prod. No. Qty PDS GHS SDS
GLOSS 350 VOC GAL 313000000 4 PDS SDS
SEMI GLOSS 350 VOC GAL 313050000 4 PDS SDS
SATIN 350 VOC GAL 313100000 4 PDS SDS
GLOSS 350 VOC 5 GAL 353000000 1 PDS SDS
SEMI GLOSS 350 VOC 5 GAL 353050000 1 PDS SDS
SATIN 350 VOC 5 GAL 353100000 1 PDS SDS
CAS Number Ingredient
Proprietary Urethane Polymer
Proprietary Soya Alkyd Polymer
64742-88-7 Mineral Spirits
556-67-2 Octamethylcyclotetrasiloxane
98-56-6 p-Chlorobenzotrifluoride
112926-00-8 Amorphous Precipitated Silica (Satin and Semi-Gloss)