390 Spengler

Acrylic sealant
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glass clear Available for corporate customers
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Available for corporate customers

Product information and downloads

The sealant that bonds to bitumen

Thanks to its special formulation, 390 Spengler is an ideal fit for expansion and perimeter joints on roofs. The acrylate bonds flawlessly to metal, wood and concrete without the need for primer. Thanks to its formulation, which includes solvent and is silicone-free, it can also be used on mildly oily or damp substrates. The elastic sealant applies effectively, can be covered with different paint coats and can also be used with bitumen.

Crystal-clear appearance once cured
Can be applied on damp substrate
Compatible with bituminous substrates


  • Paint-compatible
  • Can be covered with paint coats
  • UV-resistant
  • Fills gaps
  • Silicone-free
  • Adheres to moist substrates
  • Elastic
  • Compatible with bitumen

Technical data

approx. 20%
100 %: approx. 0.5 N/mm²
Temperature resistance
– 20° C bis + 100° C
Skin over time
approx. 15 – 20 min. (at +23°C / 50 % relative humidity)
Curing time
after 24 hours: 1mm (at +23°C / 50 % relative humidity)
Processing temperature (substrate, environment)
+5° C bis +35° C
synthetic rubber
Movement capability
max. 25 %
Storage life
24 months in a cool and dry place
Shore hardness
25 +/-5


Main applications

Installing solar power systems
Weather-resistant and non-corrosive materials are suitable for installing photovoltaic systems.
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