Series 971

Aerolon Acrylic

Generic Type

Fluid-applied acrylic insulation coating

Common Usage

An innovative, fluid-applied, thermal insulating coating utilizing aerogel particles that imparts exceptional insulative properties to a variety of substrates. Ideal for insulating pipes, valves, tanks, structural steel, or other substrates where thermal improvement or personnel protection is desired. Part of a durable, corrosion-resistant coating system that bonds to the substrate, greatly reducing the issues associated with corrosion under insulation (CUI) and mitigating thermal bridging by controlling condensation.

Special Qualifications

Thermal Conductivity (ASTM C518 at 77°F): 0.0356 W/m-°K or 0.2468 BTU-in/ft²-hr-°F (R value at one inch equals 4.1)
Flame Spread (ASTM E84): Class A
Smoke Developed (ASTM E84): Class A
Tested in accordance with NORSOK M-501/ISO 20340

Series 971 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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  • 1278 Insulation Yellow

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Steel: Series 1, 90E-92, 90-97, 90G-1K97, 90-98, 91-H₂O, 94-H₂O, 115, 118, 135, 394, 1220, 1224. Note: The use of zinc-rich primers is not generally recommended when in-service temperatures exceed 120°F (49°C). Reference NACE SP0198 for more information.
Galvanized Steel and Non-Ferrous Metal: Series 115, 1224
Concrete: Series 154, 1220, 1224
CMU: Series 1224
Note: Refer to appropriate primer data sheet for maximum temperature resistance.


Series 22, 27WB, 72T, 115, 154, 1028T, 1094, 1095, 1096, 1224. Other topcoats may be available, contact your Tnemec representative for more information. Note: A cure time of 24 hours at 75°F (24°C) is required before topcoating Series 971. Extended cure time may be required at lower temperatures.

Curing Time

Temperature To Touch To Handle To Recoat† To Topcoat
95°F (35°C) 45 minutes 8 hours 9 hours 12 hours
75°F (24°C) 2 hours 16 hours 18 hours 24 hours
45°F (7°C) 4 hours 24 hours 28 hours 36 hours

†Recoat times listed are with itself. Curing time varies with surface temperature, air movement, humidity and film thickness.



Volatile Organic Compounds

0.016 lb/gallon (1.9 grams/litre) †

Number of Components



0 lb/gal solids

Recommended DFT

30.0 to 50.0 mils (762 to 1270 microns) per coat. Note: For use as a thermal break, recommended total dry film thickness is 80 to 100 mils (2032 to 2540 microns). Thickness may vary by project. Note: Multiple coats may be required, please contact your Tnemec Representative for film thickness recommendations.

Volume Solids

76 ± 2.0% (practical) †

Theoretical Coverage

1,219 mil sq ft/gal (30.0 m²/L at 25 microns). See APPLICATION for coverage rates. †

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