Haltermann Carless Blog

Durable silicone sealants thanks to Haltermann Carless' Pilot® extender oil

Written by Dr. André Rosehr | Jan 19, 2024

Sealing joints and gaps is one of man's oldest craft activities. Today, silicone sealants are among the first choice and are indispensable in the construction industry and for DIY enthusiasts - whether for windows and doors, in the bathroom or the kitchen. This important material convinces with many special properties. Our Pilot® extender oils play an important role in this. You can find out exactly which ones in our article.

 

Silicone sealants have to fullfil a lot of requirements

Silicone sealants may be unremarkable, but their added value is enormous. Wherever joints, gaps and cracks between different materials need to be filled and sealed, silicone sealants offer a clean and durable solution. The variety of applications for both interior and exterior construction is high: in the sanitary area, the kitchen, for sealing doors, windows and window sills and much more. The sealant protects against dirt and moisture and, thanks to its permanently elastic properties, is ideally suited to withstand and compensate for building movements.

High requirement profile for silicone sealants:

  • Curing on the spot due to atmospheric humidity
  • Weather-resistant
  • Water-repellent and waterproof
  • UV- and temperature-resistant
  • Corrosion-free (for application on metallic substrates)
  • Resistant to ageing
  • Good adhesion properties (can be applied to almost all substrates)
  • Flexible and tear-resistant during application
  • High insulating effect against electricity

 

Tailor-made Pilot® extender oils allow for high-quality silicone sealants

Silicone seals become perfect with low-viscosity base oils. These special products with narrow boiling points are used as so-called extender oils in silicone sealants. In order to meet the high requirements of the sealant, these extender oils must show high quality characteristics.

With its Pilot® extender oils, Haltermann Carless offers particularly high-quality products that optimally support the properties of silicone sealants.

Benefits of our Pilot® extender oils:

  • Lowest aromatic content
  • Low odour formation
  • Excellent anti-aging properties
  • UV stability 
  • Colour stability


Pilot® extender oils enable a long service life for the cured sealant - for us, this means a sustainable product, satisfied customers and convinced end users.

 

 

Pilot® extender oils and their properties


Product grades with low aromatic content:

Typical data

Method

Pilot 200H

Pilot 250H

Pilot 275H

Pilot 300H

Pilot 400H

Pilot 500H

Pilot 600H
Appearance
Visual
Clear & colorless
Clear & colorless
Clear & colorless
Clear & colorless
Clear & colorless
Clear & colorless
Clear & colorless
Color (Saybolt)
ASTM D 156
30
30
30
30
30
30
30
Initial Boiling Point (IBP)
ASTM D86
220 °C
235 °C
250 °C
260 °C
280 °C
280 °C
310 °C
Final Boiling Point (FBP)
ASTM D86
243 °C
275 °C
295 °C
320 °C
320 °C
360 °C
360 °C
Density @ 15 °C
EN ISO 12185
820 kg/m3
820 kg/m3
820 kg/m3
820 kg/m3
820 kg/m3
820 kg/m3
820 kg/m3
Flash Point (PM)
EN ISO 2719
min. 88 °C
min. 100 °C
min. 110 °C
min. 110 °C
min. 130 °C
min. 130 °C
min. 140 °C
Kinematic Viscosity @ 40 °C
DIN 53015
1.9 mm²/s
2.5 mm²/s
3.0 mm²/s
4.5 mm²/s
4.5 mm²/s
5.5 mm²/s
6.5 mm²/s
Aromatics (UV)
HM-14-Labor
 max. 2000 ppm   
max. 1000 ppm
max. 1000 ppm
max. 1000 ppm
max. 1000 ppm
max. 1000 ppm
max. 1000 ppm
Pour Point
DIN ISO 3016
 
max. -40°C
max. -30°C
max. -20°C
max. -10°C
max. -5 °C
max. 5 °C

 

Product grades with medium aromatic content:

Typical data

Method

 Pilot 140 Pilot 150H Pilot 295 SR
Appearance
Visual
 Clear & colorless Clear & colorless Clear & colorless
Color (Saybolt)
ASTM D 156
 24 24  
Initial Boiling Point (IBP)
ASTM D86
 260 °C 260 °C 256 °C
Final Boiling Point (FBP)
ASTM D86
 330 °C 320 °C 296 °C
Density @ 15 °C
EN ISO 12185
 816 kg/m3 816 kg/m3 818 kg/m3
Flash Point (PM)
EN ISO 2719
 min. 120 °C min. 110 °C min. 118 °C
Kinematic Viscosity @ 40 °C
DIN 53015
 4.32 mm²/s 4.4 mm²/s 3.0 mm²/s
Aromatics (UV)
HM-14-Labor
 5.4% v 4.5% v 9% v
Pour Point
DIN ISO 3016
 max. -6°C max. -5°C max. -33°C

 

More information on our Pilot extender oils can be found in our product database. 

 

To produce quality products such as our Pilot® extender oils, we rely on three strategies 

1. Innovative technology

With our new hydrogenation plant at the Speyer site, we are able to produce our Pilot® extender oils for silicone sealants with extremely low aromatic content and thus offer our customers particularly high-quality and at the same time sustainable products.

2. Individual formulations

Together with you, we will find exactly the right Pilot® extender oil for your particular application. Benefit from our experience, expertise and technologies to produce tailor-made extender oils for silicone seals.

3. Personal customer focus

For us, strong partnerships and long-term business relationships are a reality. This is the only way we can achieve the best result together with you. This requires trust. Benefit from our personal 360° service.

 

Conclusion

Pilot® extender oils from Haltermann Carless fulfil important functions in silicone seals. High quality features such as UV-resistance and lowest aromatic content make the silicone sealant a long-lasting and thus sustainable product. With our individual service and our customised portfolio, we create the best conditions for your silicone sealants. 

 

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This article has been first time published on June  17 2021 and updated on January 19 2024.
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