Tempilaq® Advanced 1000°F / 538°C
Liquid Temperature Indicator
Brush onto metal surface — changes colour when temperature is reached at 1000°F (538°C). Suitable for monitoring PWHT furnaces and confirming uniform temperature on P91 steel. 2 oz. Accuracy ±1%°F.
* Images are illustrative
Tempilaq® Advanced 1000°F / 538°C
Liquid temperature indicator — brush on evenly, wide coverage, precise colour-change
Product Description
Tempilaq® Advanced 1000°F — Liquid form, applications & standards
Monitor PWHT furnace temperature and high-alloy steel heating. Brush onto P91/P22 surfaces to confirm uniform heat control zone. 2oz bottle — compact and easy to carry on site.
After application the solvent evaporates quickly (quick-dry), leaving a thin film on the steel. When the temperature reaches 1000°F (538°C), the film changes colour clearly — a visual result recordable by photo for QA/QC records. Thinner (Part #24597) may be used for dilution if needed.
Compare with Tempilstik®
When should Tempilaq® be used instead of a crayon?
Tempilaq® Advanced vs Tempilstik® — Choosing the right tool
- Curved surfaces, small-diameter pipe
- Blind angles, hard to reach by hand
- Wide, uniform surface coverage needed
- Verify uniform heat distribution in PWHT furnace
- Surfaces with ridges, grooves or complex profiles
- Flat, easily accessible surfaces
- Quick spot-check at a specific point
- Outdoor / windy site conditions
- Immediate reading needed, no drying wait
- Multiple temperature levels required simultaneously
Technical Knowledge
Standards and application context
📐 Applicable Standard
ASME Section I, API 582 — PWHT for P91, P92 steel and power plant equipment.
Cr-Mo steel P91, P92, austenitic stainless steel. Power plants, refineries.
Welding P91 steel — Controlling PWHT temperature tempil.vn🖌️ Correct application technique
Application procedure and reading results
Shake the bottle well. Apply a thin, even coat on clean steel (free of oil and grease). Allow the solvent to evaporate fully (30–60 s depending on conditions). Heat the surface — when it reaches 1000°F (538°C) the film changes colour clearly. Photograph before the surface cools. If Tempilaq® thickens from evaporation, use Thinner Part #24597 to restore viscosity.
Features
Key Advantages
- Liquid form — applicable to curved surfaces, blind angles and small-bore pipe that a crayon cannot reach
- Precise colour change at 1000°F (538°C) — accuracy ±1%°F
- Quick-dry — solvent evaporates fast after application; ready to heat within 1–2 minutes
- Uniform wide-area coverage — ideal for verifying heat distribution across large pressure vessels
- No power source, no calibration required — ready to use immediately
- Visual result (colour change), recordable by photo for QA/QC documentation
- 2 oz (59 ml) bottle — compact, easy to carry on site, suited for spot-checks
- Made in USA — C/O, Certificate of Quality, full export documentation
Part Number Table
Nearby Temperature Grades
| Part # | °F | °C | Size | Applications |
|---|---|---|---|---|
| 24425 | 850°F | 454°C | 2 oz (59ml) | PWHT P91 steel, furnace monitoring |
| 24426 | 900°F | 482°C | 2 oz (59ml) | PWHT P91 steel, furnace monitoring |
| 24427 | 950°F | 510°C | 2 oz (59ml) | PWHT P91 steel, furnace monitoring |
| 24428 ★ | 1000°F | 538°C | 2 oz (59ml) | PWHT P91 steel, furnace monitoring · This page |
| 24565 | 1100°F | 593°C | 1 Quart (946ml) | Industrial furnaces, ultra-high temperatures |
| 24431 | 1100°F | 593°C | 2 oz (59ml) | Industrial furnaces, ultra-high temperatures |
| 24566 | 1150°F | 621°C | 1 Quart (946ml) | Industrial furnaces, ultra-high temperatures |
Applications
Industries That Use It Tempilaq® Advanced
(Pipeline)
(Pressure vessel)
(Heat treatment)
(Shipbuilding)
(Refinery)
(PTSC, PVN)
FAQ
Frequently Asked Questions
❓ Usage
Can Tempilaq® 1000°F be used outdoors?
Yes, but avoid strong wind during application so the film dries evenly. In high-ambient-temperature conditions (>40°C / 104°F), the solvent evaporates faster — apply immediately before heating. In high-wind offshore conditions, a Tempilstik® crayon is usually more practical for quick spot-checks.
❓ Storage
How should Tempilaq® be stored?
Seal tightly after every use — the solvent evaporates and thickens Tempilaq® if left open. Store in a cool, ventilated place away from heat and direct sunlight. If too thick, use Thinner Part #24597 to restore original viscosity.
Related Products
See Also
Tempilaq® Advanced 1000°F
Liquid bottle, brush onto curved surfaces and blind angles. Contact us for a quote with Technical Data Sheet.
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