Sealed Concrete with a Joint Tape for Construction and Predetermined Crack Joints - SynkoElast®
References
Videos
Do you have any questions?
Documents & Data Sheets
What does this product have to offer?
SynkoElast® can be laid in fresh concrete (in-situ concrete) as well as on set concrete. A primer is then required for the latter. During concrete curing, the concrete and SynkoElast® tape bond together, stopping water penetration. The joint created between the concreting steps is sealed securely and permanently by the SynkoElast®.
Your advantages
- Quick and easy installation
- Flexible use in fresh and hardened concrete
- Processing from 0°C to 35°C
- Water pressure-tight up to 2 bar
- General test certificate issued by the building authorities
- No swelling on contact with water
- Weather, acid, alkali and salt resistant
Technical information
SynkoElast® also seals concrete sections and can also be used as a subsequent sealant for construction joints. A SynkoElast® primer is available as an accessory for use with hardened concrete.
- Colour: Black
- Consistency: elastoplastic
- Processing form : on rolls with protective film
- Spec. Density : Approx. 1.3 g/cm3
- Tensile bond strength : > 18 kPa (on concrete)
- Max. Joint displacement : < 3 mm (for size 30 x 20 mm)
- Temperature resistance : -40°C to +70°C
- Application temperature : 0°C to +35°C (component and material temperature, storage at room temperature facilitates application at low temperatures).
- Chemical resistance : H2SO4(pH 4)-acid, concrete-attacking liquid Ca(OH)2(pH 12)-alkali NaCI-salt
Product details
The waterproofing tape is used for waterproofing structural components made of waterproof in-situ concrete and element walls, for example in basements and underground garages. The construction joint tape does not swell when it comes into contact with water, so it can also be laid in the rain. It is thus also possible to connect narrow components without having to fear concrete spalling. SynkoElast® is so versatile that it can also be used in changing water levels and seals permanently.
SynkoElast® is generally tested by the building authorities up to a water pressure of 2 bar.
Fields of application of SynkoElast®
- Working and nominal crack joints in in-situ concrete
- When concreting the floor slab in several sections
- Element wall joints in combination with predetermined crack profiles and stopend elements
- Connection to set concrete with in-situ concrete
- Connection from floor slab to wall and for wall and ceiling connections
When used for general structural waterproofing and in accordance with the corresponding “WU Guideline”, the general test certificate of the MPA Braunschweig (P-6101/9650 MPA BS) issued by the building authorities must also be observed.
Application with fresh concrete
- 01 Concreting
- 02 Shaking
- 03 SynkoElast®
- 04 Concreting the adjacent component
Application for hardened concrete
- 01 The concrete must be set
- 02 Apply the primer and allow to disperse.
- 03 Heating the concrete
- 04 Press SynkoElast onto the warm concrete
- 05 Concreting the adjacent component
Questions and answers about the product
1. does SynkoElast® quill or shrink?
No, because SynkoElast® is not a swelling tape and remains stable in its shape. It seals by creating a strong bond between the tape and the concrete.
Do I have to connect SynkoElast® to the reinforcement?
No, because SynkoElast® is pressed into the still fresh concrete during concreting.
What tools do I need to lay SynkoElast® in fresh concrete?
None. SynkoElast® can be easily pressed into the fresh concrete by hand.
4. Can I also apply SynkoElast® to the concrete afterwards?
Yes! A primer is applied to the concrete and, after flash-off, is heated to such an extent that the SynkoElast® fuses with the concrete when pressed onto it.
5. are there complementary products, such as predetermined crack profiles, that I can install in double walls?
Yes! There are two complementary products for SynkoElast®. The predetermined crack profiles for double walls and the stopend profiles for dividing large structural elements into small concreting sections.
6. at what temperatures can I install SynkoElast®?
SynkoElast® should, like concrete, be installed between +5°C and +35°C. SynkoElast® is slightly stiffer at low temperatures. Storing the tape at room temperature until shortly before installation makes it easier to process.
