Do you paint it on, let it dry and then heat it up until it melts?

Paint it on, let it dry, which takes almost no time. Than do your test for heat. Some advice... keep the bottle tightly closed and in an upright position. The solvent they use is highly volatile and if bottle is left open, it will dry out quickly.

Is there a special type of thinner needed?

Tempilaq comes ready to use right out of the bottle. I believe the manufacturer does make a thinner if yours gets too thick over time...

How long before the product you will ship me will expire? It's the 399/750 version

Can't how long before the product will ship that is up to Amazon. I do not think there is an expiration date I have used mine for several years.

The picture shows the temperature indicating fluid and thinner. does this product come with a bottle of thinner?

The product that I purchased was a single bottle product. I would have had to purchase thinner seperately. As Micky-1 stated, it would depend on who is selling it and how it is priced. This appears that it would not include the thinner

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Tempil 24423- TEMPILAQ Advanced TL060 Temperature Indicating Liquid, 399 Degree C/750 Degree F, 2 oz.Ideal for Heat Treating, Brass Annealing, and Glass Production, Made in USA

Tempil 24423- TEMPILAQ Advanced TL060 Temperature Indicating Liquid, 399 Degree C/750 Degree F, 2 oz.Ideal for Heat Treating, Brass Annealing, and Glass Production, Made in USA

Product ID: 66213456

Details

Age Range (Description)
Adult
Brand
Tempil
Color
color does not
Display Type
Analog
Included Components
2 oz Bottle
Model Name
Tempilaq

🎯±1% °F accuracy

🧴2 oz easy-apply bottle

⏱️2000ms fast response

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MX$3583

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Nail your heat game with precision and speed! ⏱️

RAPID RESULTS - Melts and signals target temperature in just 2 seconds, accelerating your workflow.
SAFE SMART FORMULA - N-Propyl Bromide-free and stable, designed for hassle-free mixing and use without expertise.
PRECISION AT A GLANCE - Achieve pinpoint temperature accuracy within ±1% Fahrenheit for flawless heat treatment.
EFFORTLESS APPLICATION - Built-in brush ensures quick, mess-free coating on any surface—no extra tools needed.
VERSATILE INDUSTRIAL POWERHOUSE - From brass annealing to glass production, trust Tempilaq Advanced to safeguard quality every time.

Tempilaq Advanced TL060 is a 2 oz temperature-indicating liquid that quickly and accurately signals when surfaces reach 399°C/750°F. Featuring ±1% Fahrenheit accuracy and a rapid 2-second response, it applies easily with an integrated brush and requires no calibration. Safe, reusable, and ideal for heat treating, brass annealing, and glass production, this USA-made solution ensures industrial processes hit the perfect temperature every time.

Specifications

ASIN	B00PL7SEUU
Additional Features	High Accuracy
Age Range Description	Adult
Brand Name	Tempil
Color	color does not matter for temperature indication
Customer Reviews	4.5 4.5 out of 5 stars (516)
Display Type	Analog
Global Trade Identification Number	00048615244235
Included Components	2 oz Bottle
Indoor Outdoor Usage	Indoor
Item Length	3.75 Inches
Manufacturer	Tempil
Model	024423
Model Name	Tempilaq Advanced 750F/399C
Outer Material	Polypropylene
Part Number	24423
Product Care Instructions	Wipe Clean
Response Time	2000 Milliseconds
Reusability	Reusable
Smart Home Compatibility	Not Smart Home Compatible
Style Name	399 C/750 F
UPC	048615244235
Unit Count	1 Count
Upper Temperature Range	750 Degrees Fahrenheit
Warranty Description	2 year manufacturer

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