Product Line

Dampney Engineered Coatings

Home » Thurmalox » Product Details

Industrial high-temperature protective coatings.

Thurmalox® 70C

Stainless Steel Coating

Stainless steel coating prevents chloride induced external stress corrosion cracking to 1000F
Data Sheet

Thurmalox 70C is a VOC compliant, air drying, silicone based heat resistant coating that protects thermally insulated austenitic stainless steel from chloride induced stress corrosion cracking. Thurmalox 70C withstands temperatures to 1000°F (538°C). 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 70C is tested by an independent laboratory for leachable chloride content.

Thurmalox 70C 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”.

Common Uses
Application to stainless steel surfaces where (1) the benefits of Thurmalox 70C are needed, and where (2) federal, state and/or local authorities require high temperature coatings to be compliant with reduced VOC (volatile organic compound) emission regulations.
• Insulated stainless steel piping, vessels and equipment
• Nuclear power facilities where a high temperature coating for stainless steel with minimum amounts of chlorides, other halides, nitrates, sulfides and metals is needed

Specification Data

Generic Type
Temperature Resistant After Cure
1000°F (538°C) Continuous 1100°F (593°C) Intermittent
Theoretical Coverage
290 mil. sq. ft. (77 sq. m. @ 25 microns)
6.8 sq. m. @ 25 microns per liter
Dry to Touch
6-8 hours
Dry Time to Recoat
10-12 hours
Dry Time to Ship
48 hours
VOC Content
3.45 lb./gal. (413 g./l.)

Application Instructions

Application Temperature
50°F - 120°F (10°C - 50°C)
  To place orders and/or obtain pricing information contact:

Dampney Company
85 Paris Street
Everett, MA 02149
TEL: (617) 389-2805
Request More Information

Product Lines

Industrial high-temperature protective coatings.
Industrial Coatings
Coatings for resistance to boiling water/steam and waterside corrosion.
Dymacryl masonry stains have a proven record of protecting surfaces against damage caused by water absorption.
Corrosion resistant coatings include silicone alkyd, thermo setting epoxy,inorganic zincs, acrylic urethane, water borne silicone, coal tar epoxy, elastomeric, cold galvanizing compound.
Single package high build ELASTOMERIC coating and vapor barrier.
Underwater epoxy coating, solvent free. Used for epoxy coatings, floor coatings and concrete restoration projects. Skid resistant epoxy broadcast floor system.
Alvin Products
Offering a complete line of quality problem-solving products for industry.
Stove Paint
Dampney has served the home and hearth industries for many years providing high performance heat resistant coatings to meet their ever changing needs. Visit for more information.
Temperature Indicating Coatings
Silicone coatings designed primarily for temperature indicating applications requiring an irreversible sharp visual color change.