GU-Super-Dichtmasse

Substrates

• Suitable for all porous building substrates such as concrete, brick, roof tiles, cellular concrete, plasterboard, plaster, masonry and fibre cement. Adhesion surfaces must be suitable for coating, clean, and free of dust and grease
• Do not use on glass, metals at risk of corrosion, enamels and ceramics or for underwater jointing. Contact with bitumen, tar or substances that give off plasticisers, such as EPDM, chloroprene rubber (neoprene), butyl, insulating paints, and foams, should be avoided since this can lead to incompatibilities such as discolouration or loss of adhesion.
• GU super sealant is not suitable for joints with marble or other types of natural stone since such use can lead to adhesion problems and / or discolouration.
• It is advisable to carry out an initial adhesion and compatibility test on every substrate
• Many need priming on a case-by-case basis

Processing

• Application method
  • GU soft-pack gun
• Processing temperature
  • Ambient temperature: +5 °C to +40 °C
  • Temperature of adhesive surface: +5 °C to +35 °C
• Do not apply when there is a risk of rain or frost

Joint dimensions
Minimum width: 5 mm
Maximum width: 20 mm
Minimum depth: 5 mm

Storage

• Store in the unopened packaging in a cool (+5 °C to +25°C), dry place. Protect from frost. Seal opened containers well and use quickly

Safety instructions

• Observe standard workplace hygiene

Note

• Resistant to driving rain once a solid film has formed on the surface (approx. 60 minutes)
• Not suitable for long-term exposure to water
• Drying will be significantly slower at low temperatures and/or high air humidity
• In accordance with the current standards (e.g. DIN 18540), elastic sealing compounds should not be completely coated as cracks may form in the inelastic coating in the event of stress or movement. For joints with a maximum movement of 5 %, GU super sealant can be coated once it is completely dry, but the coating used must be able to compensate for movements in the compound. Due to the variety of coating systems available on the market, we recommend carrying out compatibility and adhesion tests in advance

^[1]Measured according to standard atmosphere (EN ISO 291) at 23 °C / 50 % rel. hum. These values can vary due to environmental factors such as temperature, humidity and the nature of the substrate.