Torque sealant
Visual securing of screw connections
Torque sealant
Take a look at our products
Buy your torque sealant with tamper protection
As torque sealants are often used as tamper indicators, the demand for tamper-proof torque sealants has risen constantly in recent years.
Basic
- Your chosen torque sealant
- Hidden security feature
- Customised security feature
Secure
- Your chosen torque sealant
- Hidden security feature
- Customised security feature
Topsecure
- Your chosen torque sealant
- Hidden security feature
- Customised security feature
Compare our torque sealants
 |  |  | |
| Viscosity | 15.000 – 20.000 mPas | 10.000 – 30.000 mPas | 20.000 – 30.000 mPas |
| VOC value* | 540 g/L ±20 g/L | 0 g/L | 520 g/L ±20 g/L |
| Application temperature | -20° C – 35° C | 2° C – 35° C | -20° C – 35° C |
| Temperature stability | -80° C – 160° C | -80° C – 120° C | -80° C – 125° C |
| pH value | – | ca. 8 – 9 | – |
| Flashpoint | 29° C | – | -4° C |
| Dust-dry after** | approx. 5 min | approx. 10 min | approx. 1 min |
| Fully hardened after** | approx. 24 hours | approx. 12 hours | approx. 24 hours |
| Density | ca. 1,05 g/cm3 | ca. 0,98 g/cm3 | ca. 1,05 g/cm3 |
| Shelf life | 6 – 48 months | 6 – 24 months | 6 – 24 months |
| | | |
| Water | |||
| Gasoline | |||
| Super 95 | |||
| White spirit 135/175 | |||
| Special boiling point product 100/140 | |||
| Ethanol | |||
| Isopropyl alcohol (IPA) | |||
| n-Butanol | |||
| 2‑Methoxy-1-Propanol | |||
| Butylacetate | |||
| Ethylacetate | |||
| Acetone | |||
| Methyl ethyl ketone (MEK) | |||
| Titanium grease | |||
| WD-40 | |||
| Hydrochloric acid 0,5 mol/l | |||
| Hydrofluorether |
* May vary slightly depending on the respective colour. ** Drying and through-drying speed are strongly dependent on the layer thickness and the ambient conditions. Please test for your own application.
- Resistant: no or very little impairment
- Bedingt beständig: schwacher bis mäßiger Angrif
- Unstable: strong attack / paint dissolves in medium
Application reasons
Our torque sealants can be used in a variety of ways. Find out more about the benefits of securing your product with one of our varnishes.
1
Torque loosening indicator
To immediately recognise any loosening of safety-relevant screw connections.
2
Visual inspection marker
To indicate that a screw connection has already been properly tightened or another workpiece has been checked.
3
Tamper indicator
To indicate whether screw connections or components have been loosened without authorisation. This is often used in connection with warranty claims.
4
Assignment indicator
To indicate which point in the production chain was the last to work on the workpiece in question.
5
Threadlocker
To secure screw connections.
How does torque sealant work?
Simple application for high quality control
When applying, the screw and the fastener should be thoroughly cleaned of oil, grease, moisture and rust.
Once the paint system is completely dry, the torque sealant acts as a seal and breaks as soon as the screw connection loosens.
Torque sealant is a varnish that is applied to mechanical fasteners and usually acts as a "visual safety mark" or inspection seal. Torque sealant is available in different colors and in transparent. Most torque sealants currently available on the market are solvent-based but more environmentally friendly variants, for example water-based (VOC-free) torque sealants, have been gaining in importance in recent years as they are much gentler on humans and nature.
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 would like to find out more about the topic of torque sealants, we can recommend the article on Wikipedia.
