
Torque sealant and its range of applications
Although torque sealants can look back on almost 60 years of existence (Lackfabrik Bäder GmbH & Co. KG has been selling torque sealants since 1962), their general function and thus their range of applications is, if at all, only very sparsely documented. There are several reasons for this.
First, the torque sealant market can be considered small in relative terms compared to other industries, which is why there is only limited public interest in it. Secondly, the term "torque sealant" can be confusing, as it describes only part of its range of applications.
Nevertheless, torque sealants are used extensively in a variety of industries. These include, among others, the automotive industry, the aviation and aerospace industry, the rail and railroad industry or, for example, manufacturers and service providers of fairground rides. The bottom line is that it is hard to find industries in the manufacturing sector that do not have some contact with torque sealants. Why? Because screws are used everywhere. And where there are screws, there is usually torque sealant.
Due to the wide range of applications of torque sealants five different main fields of application have emerged over the years.
Torque loosening indicator
Torque sealant is used as a torque loosening indicator to immediately detect loosening of safety-related fasteners.

Visual inspection marker
Torque sealant is used as a visual inspection marker to indicate that a bolted joint has already been properly tightened or any other workpiece has been inspected/approved.

Tamper indicator
Torque sealant is used as a tamper indicator to indicate whether threaded connections or components have been loosened without authorization.

Assignment indicator
Torque sealant is used as an assignment indicator to indicate which point in the production chain (e.g., production, installation, maintenance etc.) worked last on the workpiece at hand.

Threadlocker
Tamper proof sealant is used as a threadlocker to secure threaded connections.

Due to the many different fields of application, there are many different terms that can be assigned to the umbrella term "torque sealant". These include: torque seal; torque seal paint; tamper proof sealant; tamper proof indicator paste; torque inspection seal; torque indicator paste; torque stripe; witness mark; marking ink; screw protection varnish.
If you have any further questions on this subject, please do not hesitate to contact us.
Take a look at our products

Flow
Torque sealant
Standard range
Our Schraubensicherungslack Standard (torque sealant) is the essential tool to protect, mark, fill and seal work involving all kinds of screw securing jobs.
Dangerous goods free in the air

Sustainability
Medium-Flow
Torque sealant
Zero range
Our Zero range is the first 100% water-based securing lacquer system that works completely without organic solvents (VOC-free).

Extremely fast drying
Anti-Flow
Torque sealant
Fast Dry range
Our Fast Dry range is an extremely fast drying torque sealant (tamper proof sealant), which is characterized by an excellent anti-flow behavior and good adhesion properties.
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Sustainability
Flow
Zero range
Brush Marker
It comes with an integrated brush for easy application. It is ideal for use on rotary controls to ensure that factory settings do not change under the effect of vibration.
Dangerous goods free in the air
Sustainability
Flow
Zero range
High Precision Marker
Our High Precision Marker enables highly precise and clean work on the smallest parts.