GYM FINISH #40U
Oil-Modified Urethane Finish For Wood
Hard - Easily Recoated - Very Pale Color

Coverage Per Gallon

First Coat On Sanded Floor ...	400-500 square feet
Any Recoat ..........	500-700 square feet

Drying Time

Tack Free ...................	15 minutes
Between Coats .....	8 hours
Before Play ...................	3 days

Composition - Properties - DOT Class - Precautions
Contains oil-modified urethane resin in aliphatic solvent

Physical State...... liquid	Viscosity @ 68ºF/20ºC.... 400cp
Color....... pale amber	Freeze Point, less than .... -20º
Odor .......... mild	Flash Point .......... 105ºF
Specific Gravity..... 0.96	DOT-Hazard Lable ... None

Combustible, air-dry finish - provide the same ventilation as needed for solvent-base paints.

Comparison To Industry Specifications

Bases on specifications and/or standards of: Maple Floor Manufacturers Association, American Society for Testing and Materials, and Manufacturing Chemist Association.
Industry Specification/Standard Gym Finish #40U

Clear, no specks or sediment	Clear, no specks or sediment
Resistant to skinning	Resistant to skinning
Color: #12 Gardner maximum	Color: #11 Gardner
Viscosity: C Gardner maximum	Viscosity: B Gardner
Solids: 40%	Solids: 40% minimum
Flash Point: 100ºF minimum	Flash Point: 105ºF minimum
Dry in 7 hours @ 70ºF, 60% RH	Dry in 6.5 hours @ 70ºF, 60% RH
Sward hardness: specify	Sward hardness: 43
Mandrel flex test: specify	Mandrel flex test: No cracks
Sheen: Good	Sheen: Good
Adhesion: Good	Adhesion: Good
Uniformity, patched: Good	Uniformity, patched: Good
Resistant to cold water	Resistant to cold water
Resistant to 50% alcohol	Resistant to 50% alcohol
Resistant to naphtha	Resistant to naphtha
Suitable for solvent wax	Suitable for solvent wax
Suitable for emulsion wax	Suitable for emulsion wax
Abrasion coefficient: 140	Abrasion coefficient: 143

Recommendations

On most gym floors and other wood floors where existing finish has not worn through, excellent results are secured by simply cleaning and re-coating with Gym Finish #40U. Machine-scrub the floor with water and a good detergent using a nylon stripping pad. Lustreen detergent or similar product is recommended. Rinse thoroughly and let dry. Apply Gym Finish #40U with a wool applier. One coat is normally enough. If worn through to bare wood or last top-coat was moisture-cure urethane, discing or sanding is probably needed. Call for specific recommendations.