Series 291


Generic Type

Aliphatic Polyester Polyurethane

Common Usage

Extremely hard, chemical-resistant polyurethane floor coating with superb flow characteristics. Excellent resistance to abrasion, wet conditions, corrosive fumes and chemical contact. Gloss and color retention among the best of air dried finishes. Note: For horizontal surfaces only.

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Horizontal Concrete: Series 201, 203, 205, 280, 281, 287.


Series 104, 205, 210, 237, 238, 239, 280, 281, 287
Note: Before topcoating with Series 291, any Tnemec epoxy exterior exposed for more than three weeks must be scarified or reprimed with itself. Mechanically abrading or power-sanding is the preferred method of scarification. The maximum recoat time of Series 210, 237, 238, 239, 280 and 281 is 24 hours. Refer to those product data sheets for more information. Note: Scarification using a power sander and 100 grit sandpaper, No. 60 mesh sanding screen or a coarse stripping pad is required if topcoating Series 291 with itself. Note: When applying Series 291 over a broadcast or mortar system, an epoxy grout coat is required.



Volume Solids

62% ± 2.0% (mixed) †

Number of Components

Two: Part A and Part B (2.5 Parts A to 1 Part B by volume)

Volatile Organic Compounds

Unthinned: 2.91 lbs/gallon (348 grams/litre)
Thinned 15%: 3.34 lbs/gallon (401 grams/litre) †

Theoretical Coverage

994 mil sq ft/gal (24.4 m²/L at 25 microns). See APPLICATION for coverage rates. †

Curing Time

Temperature Min. Recoat To Service Chemical Resistance
75°F (24°C) 12 hours 24 hours 7 days

Curing time varies with surface temperature, air movement, humidity and film thickness.

Recommended DFT

2.0 to 3.0 mils (50 to 75 microns) per coat. Note: Number of coats will vary depending on color, substrate (surface) and other variables. Contact your Tnemec representative.

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Chemical Resistance


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