Product Type: Temperature Indicating Coatings

Thurmalox® 884 Brochure

Jim Dworchak — Fri, 10 Oct 2025 21:34:00 GMT

Product Name: Thurmalox® 884 Brochure
HTML Title: 884 Brochure
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a distinct color change when applied to hot process equipment. The color change provided by Thurmalox 884/884C series indicates vessel or process overheating due to failure of refractory linings, system malfunction or bypassing of hot gases.
Tags: Temperature Indicating Paint, Temperature Indicating Coating, Refractory Hot Spots, Thermochromic Indicating Coating, Thermochromic Indicating Paint, thermoindicative,
Prop 65 Warning: False
Data Sheet: 884Series TIC Brochure
Spanish DataSheet: 884 series Spanish 2020[160997]
Description: A single component heat resistant silicone coating available in select colors designed to change or indicate at various temperatures.
Application Method: Spray|Brush|Roll
Generic Type: Modified Silicone
Color: Colors
Available Sizes: 1 Gallon|5 Gallon
Common Uses: Thurmalox 884/884C series coating can be applied over inorganic zinc rich primers, silicone primers, inert multi-polymeric matrix primers or in some cases direct to metal. Please consult Dampney Company for specific recommendations.
Features: Suited for both new construction or maintenance, these coatings offer fast dry times and are available in low VOC formulations. Thurmalox 884/884C series is easily recoated with itself, please see full product data sheets for specific instructions and surface preparation details.
Apply To Hot Surfaces : No
Curing Requirements: Thurmalox 884/884C series will air dry for shipping and handling. The coating will reach its full physical properties once placed into elevated temperature service.
Immersion: No
Insulated: No
UnInsulated Surfaces: Yes
Components: 1

Thurmalox® 884-082 Green

Dennis Aikman — Tue, 03 Nov 2015 17:28:00 GMT

Product Name: Thurmalox® 884-082 Green
HTML Title: Temperature Indicating Coating
SKU: 884-082 Green
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a two stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-082 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-082 is suitable for maximum continuous operating temperatures up to 300˚F (149˚C).
Tags: Temperature Indicating Paint, Temperature Indicating Coating, Refractory Hot Spots, Thermochromic Indicating Coating, Thermochromic Indicating Paint,THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-082 SDS 12142021
Data Sheet: 884-082 1015
Application Method: Spray|Brush|Roll
Available Sizes: 1 Gallon|5 Gallon
Immersion: No
Insulated: No
UnInsulated Surfaces: Yes
Components: 1
Description HTML Content:

Color Change Summary

Ambient to 300˚F (149˚C)	Green
356˚F (180˚C) - 428˚F (220˚C)	Green to Blue
590˚F (310˚C) - 662˚F (350˚C)	Blue to White

Thurmalox® 884-083 Green

Dennis Aikman — Tue, 03 Nov 2015 17:42:00 GMT

Product Name: Thurmalox® 884-083 Green
HTML Title: Temperature Indicating Paint
SKU: 884-083 Green
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a two stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-083 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-083 is suitable for maximum continuous operating temperatures up to 350˚F (177˚C).
Tags: SCAQMD Rule 1113temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating, THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-083 SDS 01182022
Data Sheet: 884-083 1015
Description: Temperature Indicating Paint
Temperature Indicating Coating
Thermo Indicative Paint
Thermal Indicating Paint
Available Sizes: 1 Gallon|5 Gallon
Components: 1
Description HTML Content:

Dampney Company’s Thurmalox 884 series line of temperature indicating coatings allows for a range of temperatures and colors which help to identify hot spots on refractory lined equipment, insulated equipment and process vessel overheating. Thurmalox 884 also has uses in the heat treating and OEM industries where an indicator is required as part of a heating or curing process.

Temperature Indicating Coatings

Very sharp, easily seen irreversible color change
One and two step color change options
Suitable for shop or field application
Available in standard 884 and low VOC 884C formulations
Acceptable for use on ferrous and non-ferrous metals
Can be recoated with itself after repairs
Applied over suitable inorganic zinc rich primers, heat resistant silicone primers or existing coated surfaces
Applied by brush, roller, conventional or airless spray methods
Contains no heavy metals
Thurmalox 884C products comply with SCAQMD Rule 1113 as a Color Indicating Safety Coating
Thurmalox 884C products comply with BAAQMD Definition 8-3-301 as a Temperature Indicating Safety Coating

Color/ Temperature Summary

Ambient to 350˚F (177˚C)	Green
425˚F (218˚C) - 475˚F (246˚C)	Green to Brown
580˚F (304˚C) - 620˚F (327˚C)	Brown to Red

Thurmalox® 884-090 Blue

Dennis Aikman — Tue, 03 Nov 2015 17:48:00 GMT

Product Name: Thurmalox® 884-090 Blue
HTML Title: 884-090 Blue
SKU: 884-090
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-090 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-090 is suitable for maximum continuous operating temperatures up to 500˚F (260˚C) without color change.
Tags: SCAQMD Rule 1113temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating, THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-090 SDS 2019
Data Sheet: 884-090 1015
Available Sizes: 1 Gallon|5 Gallon
Immersion: No
Insulated: No
UnInsulated Surfaces: Yes
Components: 1
Description HTML Content:

Color/ Temperature Summary

Ambient to 500˚F (260˚C)	Blue
590˚ (310˚C) to 650˚F (343˚C)	Blue to White

Thurmalox® 884C-085 Green

Jim Dworchak — Mon, 13 Oct 2025 14:14:00 GMT

Product Name: Thurmalox® 884C-085 Green
HTML Title: 884C-085
Short Description: A VOC compliant heat-resistant modified silicone coating system designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884C-085 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884C-085 is suitable for maximum continuous operating temperatures up to 550˚F (288˚C) without color change.
Tags: SCAQMD Rule 1113 as a Color Indicating Safety Coating, BAAQMD Definition 8-3-301 as a Temperature Indicating Safety Coating, temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating, THERMOINDICATIVE,
Prop 65 Warning: False
Data Sheet: 884C-085
Application Method: Spray|Brush|Roll
Available Sizes: 1 Gallon|5 Gallon
Immersion: No
Insulated: No
UnInsulated Surfaces: Yes
Components: 1

Thurmalox® 884C-090 Blue

Jim Dworchak — Mon, 13 Oct 2025 14:21:00 GMT

Product Name: Thurmalox® 884C-090 Blue
HTML Title: 884C-090
Short Description: A VOC compliant heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884C-090 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884C-090 is suitable for maximum continuous operating temperatures up to 500˚F (260˚C) without color change.
Tags: SCAQMD Rule 1113 as a Color Indicating Safety Coating, BAAQMD Definition 8-3-301 as a Temperature Indicating Safety Coating, temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating,THERMOINDICATIVE,
Prop 65 Warning: False
Data Sheet: 884C-090
Application Method: Spray|Brush|Roll
Available Sizes: 1 Gallon|5 Gallon
Immersion: No
Insulated: No
UnInsulated Surfaces: Yes
Components: 1
Description HTML Content:

Color Change Summary

Ambient to 500˚F (260˚C)	Blue
590˚ (310˚C) to 650˚F (343˚C)	Blue to White

Thurmalox® 884-050 Red

Dennis Aikman — Tue, 03 Nov 2015 17:46:00 GMT

Product Name: Thurmalox® 884-050 Red
HTML Title: Temperature Indicating Coating
SKU: 884-050
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-050 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-080 is suitable for maximum continuous operating temperatures up to 250˚F (121˚C).
Tags: SCAQMD Rule 1113temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating, THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-050 SDS 09202021
Data Sheet: 884-050 1015
Available Sizes: 1 Gallon|5 Gallon
Components: 1
Description HTML Content:

Color/ Temperature Summary

Ambient to 250˚F (121˚C)

Bright Red

300˚ (149˚C) to 450˚F (232˚C)

(changes through entire range)

Bright Red to

Pink

Thurmalox® 884-080 Green

Dennis Aikman — Tue, 03 Nov 2015 17:50:00 GMT

Product Name: Thurmalox® 884-080 Green
HTML Title: Temperature Indicating Coating
SKU: 884-080
Short Description: A heat-resistant modified silicone coating designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-080 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-080 is suitable for maximum continuous operating temperatures up to 450˚F (232˚C).
Tags: Temperature Indicating Paint, Temperature Indicating Coating, Refractory Hot Spots, Thermochromic Indicating Coating, Thermochromic Indicating Paint,THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-080 SDS 01182022
Data Sheet: 884-080 1015
Description:

Available Sizes: 1 Gallon|5 Gallon
Components: 1
Description HTML Content:

Color/ Temperature Summary

Ambient to 450˚F (232˚C)	Green
520˚ (271˚C) to 590˚F (310˚C)	Green to White

Thurmalox® 884-085 Green

Dennis Aikman — Tue, 25 Apr 2017 14:16:00 GMT

Product Name: Thurmalox® 884-085 Green
HTML Title: Temperature Indicating Coating
SKU: 884-085
Short Description: A heat-resistant modified silicone coating system designed primarily for temperature indicating applications requiring a single stage irreversible color change. When applied to refinery and petrochemical process equipment which operate at elevated temperatures the color change provided by Thurmalox 884-085 indicates vessel overheating due to failure of refractory linings, system malfunction or bypassing of hot gases. Thurmalox 884-085 is suitable for maximum continuous operating temperatures up to 550˚F (288˚C) without color change.
Tags: SCAQMD Rule 1113temperature indicating paint, temperature indicating coating, thermochromic paint, thermochromic coating, THERMOINDICATIVE,
Prop 65 Warning: False
SDS: 884-085 SDS 12062020
Data Sheet: 884-085
Available Sizes: 1 Gallon|5 Gallon
Components: 1
Description HTML Content:

Color Change Summary

Ambient to 550˚F (288˚C)	Green
650˚ (343˚C) to 950˚F (510˚C)	Green to White

Note: Color change is dependent on variables such as time, temperature and thickness of steel surface. Color change or drift is possible based on these variables. Thurmalox 884-085 may require repainting every 18-24 months depending on operating conditions.

Thurmalox^® 884 Series
Temperature Indicating Coatings

Temperature Indicating Paint
Temperature Indicating Coating
Thermo Indicative Paint
Thermal Indicating Paint

Very sharp, easily seen irreversible color change
One and two step color change options
Suitable for shop or field application
Available in standard 884 and low VOC 884C formulations
Acceptable for use on ferrous and non-ferrous metals
Can be recoated with itself after repairs
Applied over suitable inorganic zinc rich primers, heat resistant silicone primers or existing coated surfaces
Applied by brush, roller, conventional or airless spray methods
Contains no heavy metals
Thurmalox 884C products comply with SCAQMD Rule 1113 as a Color Indicating Safety Coating
Thurmalox 884C products comply with BAAQMD Definition 8-3-301 as a Temperature Indicating Safety Coating

Product Code	Thurmalox 884-050	Thurmalox 884-080 884C-080	Thurmalox 884-082 884C-082	Thurmalox 884-083 884C-083	Thurmalox 884-085 884C-085	Thurmalox 884-090 884C-090
Color	Red	Green	Green	Green	Green	Blue
Continuous Temperature Resistance (no color change)	≤250˚F (121˚C)	≤450˚F (232˚C)	≤300˚F (149˚C)	≤350˚F (177˚C)	≤550˚F (288˚C)	≤500˚F (260˚C)
Indication Temperature (color change)	Red to Pink >300˚F (149˚C)	Green to White >520˚F (271˚C)	Green to Blue >356˚F (180˚C) Blue to White >590˚F (310˚C)	Green to Brown >425˚F (218˚C) Brown to Red >580˚F (304˚C)	Green to White >650˚F (343˚C)	Blue to White >590˚F (310˚C)
Volume Solids	34%	31% 49%	35% 51%	36% 55%	31% 52%	39% 55%
Dry Film Thickness	1.0-2.0 mils (25-50 µm)	1.0-2.0 mils (25-50 µm)	1.0-2.0 mils (25-50 µm)	1.0-2.0 mils (25-50 µm)	1.0-2.0 mils (25-50 µm)	1.0-2.0 mils (25-50 µm)
Theoretical Coverage at 2.0 mils (50 µm)	272 ft²/gal (6.68 m²/l)	248 ft²/gal (6.09 m²/l) 392 ft²/gal (9.6 m²/l)	281 ft²/gal (6.91 m²/l) 409 ft²/gal (10.05 m²/l)	289 ft²/gal (7.10 m²/l) 441 ft²/gal (10.8 m²/l)	248 ft²/gal (6.09 m²/l) 417 ft²/gal (10.25 m²/l)	313 ft²/gal (7.69 m²/l) 441 ft²/gal (10.8 m²/l)
Components	One	One	One	One	One	One
VOC Lb/Gal (G/L)	4.85 (582)	4.92 (590) 3.33 (399.6)	4.63 (555.6) 3.48 (418)	4.59 (550.8) 3.20 (384)	4.92 (590) 3.42 (410.4)	4.42 (530) 3.19 (383)

The condensed data published above is for reference only; please consult full product data sheets for detailed information.
Color change is dependent on variables such as time, temperature and thickness of metal surface. Color change or drift is possible based on these variables.
Thurmalox 884 Series Temperature Indicating Coating may require painting every 18-24 months depending on operating conditions.

About Us

Dampney Company manufactures a wide range of heat resistant coatings for the refining, chemical processing, power generation, steel processing, mining and OEM industries. Typical applications include the protection of insulated and uninsulated metals exposed to extreme temperatures and corrosion.

Product Type: Temperature Indicating Coatings

Thurmalox® 884 Brochure

Thurmalox® 884-082 Green

Color Change Summary

Thurmalox® 884-083 Green

Temperature Indicating Coatings

Color/ Temperature Summary

Thurmalox® 884-090 Blue

Color/ Temperature Summary

Thurmalox® 884C-085 Green

Thurmalox® 884C-090 Blue

Thurmalox® 884-050 Red

Color/ Temperature Summary

Thurmalox® 884-080 Green

Color/ Temperature Summary

Thurmalox® 884-085 Green

Thurmalox® 884 Series Temperature Indicating Coatings

Thurmalox^® 884 Series
Temperature Indicating Coatings