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Industrial high-temperature protective coatings.

Thurmalox® 225 HD

Inert Multi polymeric Matrix Paint

VOC compliant, high build coating from 300ºF to 1000ºF (148ºC to 538ºC)
Inert Multi polymeric Matrix Coating
Data Sheet
SDS - Part B
Related Information

Thurmalox 225HD is a two component, corrosion inhibitive, high build, air dry, high temperature, VOC compliant coating system for protection of carbon and stainless steel surfaces from atmospheric corrosion and corrosion under insulation. It is an ideal coating to cover steel surfaces with deep profiles, eliminating the problem of pinpoint rusting by covering the peaks with this unique high build coating. Thurmalox 225HD may be topcoated with itself, Thurmalox 230/230C Series or Thurmalox 260/260C Series.

• High build, high solids
• Self priming, two component
• Easy to apply by brush, roller or spray
• VOC compliant – 3.44 lb./gal. (292 g. /l.)
• Withstands temperature of 1000°F (538° C)
• Air dries
• Easily topcoated with Dampney Topcoats
• Protects against weathering and corrosion
Inert Multipolymeric Matrix Coating meets the following NACE SP0198 standards: SS-4, SS-5, CS-6, CS-8
Common Uses
Hi-Build, Corrosion Under Insulation (CUI)
Ambient & Hot Apply
Application where (1) the benefits and features of Thurmalox 225HD are needed and (2) where federal, state, and/or local authorities require high temperature coatings to be compliant with reduced VOC (volatile organic compound) emissions regulations.

•Stacks, Breechings, Boiler Casings
•Manifolds, Mufflers and Exhausts
•Hot Piping, Process Vessels, Heat Exchangers
•Refinery Equipment - Heaters, Crackers
•Furnaces, Kilns, Heat Exchangers
•Insulated surfaces from 500°F (260°C) to 1000°F (538°C). (NOTE: 225HD must be air dried for a minimum of 7 days before insulating)

Not Recommended For:
•Interiors of breechings
•Interiors of scrubbers
Apply To Hot Surfaces
Yes Up to 450°F

Specification Data

Generic Type
Modified Silicone-Primer/Topcoat
Temperature Resistant After Cure
Ambient to 1000°F
Intermittent Peak Temperature
Continuous Temperature
Carbon or Stainless
Volume Solids
Number Of Coats
1 or 2
Dry Film Thickness per coat
4.0 - 5.0
(100 - 125)
Wet Film Thickness per coat
Application Method
Spray Preferred
Theoretical Coverage
800 sq. ft.
(20 sq. m.)
Dry to Touch
4 hours
Dry Time to Recoat
24 hours
Dry Time to Ship
72 hours
VOC Content
3.5 lb./gal.
Curing Requirements
Heat Cure at
350°F for 30 Minutes

Application Instructions

Surface Preparation
Application Temperature
50°F - 350°F
(10°C - 176°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

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