Thurmalox 70 is an air drying, silicone based heat resistant coating that protects thermally insulated austenitic stainless steel from chloride induced stress corrosion cracking. Thurmalox 70 withstands temperatures to 1000ºF (538ºC) with peaks to 1100ºF (593ºC). It is formulated to contain the minimum amounts of attainable chlorides, halides, sulfides, nitrates and metals that induce external stress corrosion cracking. Every batch of Thurmalox 70 is tested by an independent laboratory for leachable chloride content.

Thurmalox 70 is formulated to meet the currently accepted practice for selection of protective coatings for stainless steel surfaces under thermal insulation as set forth in NACE Technical Committee Report 6H189  A State-of-the-Art Report of Protective Coatings for Carbon Steel and Austenitic Stainless Steel Surfaces Under Thermal Insulation.

70

No
50°F - 120°F
(10°C - 49°C)

Silicone

Black

Ambient to 1000°F / 700°F
(538°C / 371°C)

1000°F / 700°F
(593°C / 371°C )

1000°F / 700°F
(538°C / 371°C)

No

Stainless Steel

1

41% / 42%

2

1.5 - 2.0
(37 - 50)

8.5-10.5

276 / 836 sq. ft.
(6 / 20 sq. m)

30 minutes

8 hours

24 hours

5.96 lb./gal

No

No

Heat Cure at
300°F for 30 Minutes

SSPC SP-1

50°F - 120°F
(10°C - 49°C)