Series 248


Generic Type

Aliphatic Moisture Cured Urethane

Common Usage

Extremely hard, chemical-resistant urethane floor coating with superb wear characteristics. Excellent resistance to abrasion, wet conditions, corrosive fumes and chemical contact. Excellent gloss and color retention. Low odor characteristic allows for use near occupied space.

Special Qualifications

Series 248 meets the requirements of LEED-Low-Emitting Materials, Collaborative for High-Performance Schools-Paints & Coatings, WELL Building Standard-VOC Restrictions, and Living Building Challenge–Healthy Interior Performance. Contact your Tnemec representative for more information.

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Series 205, 210, N222, N223, N224, 233, 237, 238, 256, 257, 280, 281, N284, N285, 287
Note: Applying Series 248 to one of the listed primers or intermediate coats does not require sanding if the maximum recoat window for the primer or intermediate coat has not been exceeded. However, when applying Series 248 over smooth, slick, glossy surfaces it is good practice to uniformly degloss the surface by power sanding with 100 grit sandpaper, a 60 mesh sanding screen, or a coarse stripping pad to eliminate surface tension and any potential for possible contamination in the surface that may lead to fisheyes and/or poor adhesion. Sanding is not required when topcoating textured coatings (i.e. aggregate or colored quartz broadcast to refusal) with Series 248 if the maximum recoat window for the primer or intermediate coat has not been exceeded. Note: When applying Series 248 over a broadcast or mortar system, a 100% solids epoxy grout coat or Series 256 or 257 is required.

Curing Time

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

‡ When recoating, the surface must be thoroughly scarified using 60 grit sandpaper or No. 60 mesh sanding screen. 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.

Volatile Organic Compounds

Unthinned: 0.68 lbs/gallon (82 grams/litre) †


Semi-gloss. Note: The gloss level can be reduced by adding two Part C filler components to each kit.

Number of Components

Three: Part A, Part B (clear) and Part C (powder)

Volume Solids

92 ± 2.0% (clear mixed) †


Concrete: Series 201, 205, 208, N222, N223, N224, 233, 237, 238, 256, 257, 280, 281, N283, N284, N285, 287. Note: Series 248 can be applied directly to concrete if a single-coat urethane sealer is desired.

Theoretical Coverage

1,476 mil sq ft/gal (36.2 m²/L at 25 microns). See APPLICATION for coverage rates. †

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