Uses
- For interior and exterior application.
- For walls and floors.
- Sealing horizontal and vertical expansion and other joints in high-rise and civil engineering construction, even under seeping ground water and non-pressing surface water.
- For sewage treatment plants, harbour facilities, waterways and locks up to 2 bar pressure.
- Sealing of pipes and precast elements used in sewage canals in accordance with the appropriate test report from the Institute of Building technology.
- Sealing joints in floor screeds and concrete slabs.
- Sealing metal sidings/roofing.
- Sealing collars on overhead electrical wire poles.
User benefit
- Elastic, good recovery properties.
- Waterproof and pressure resistant, for continually wet conditions - withstands water pressure up to 2 bar (at 2cm joint width).
- Resistant to weathering and aging, resistant to temperatures from -30°C to +80°C.
- Resistant to chemicals and against many acids, lyes, fats and oils.
- Has no thermoplasticity, it is superior to bitumen and tar pastes.
- Microbe resistant, it is resistant to the micro-organisms found in sewage water.
- Root resistant, the joint sealant cannot be destroyed through root growth.
- Highly resistant to mechanical stress, and thus well suited for floor joints exposed to vehicle traffic.
- Officially tested and approved, by the SKZ in Wurzburg, and by the Institute for Building Technology in Berlin.
Packaging
ESCUTAN TF
2.5 litre can; color: Grey and black
MASTERFLEX PRIMER NO. 1
500 ml package
Material base
Two part polyurethane.
Typical properties*
| Component |
two |
| Density |
1.5 g/cm³ |
| Consistency |
paste |
| Color |
base component: Grey - hardener: White |
| Working temp. |
+5°C to +30°C (surface and material temp) |
| Mixing time * |
about 5 minutes |
| Workability * |
about 50 minutes |
| Curing time ** |
about 36 to 48 hours |
| Temp. service range |
-30°C to +80°C |
| Practical elasticity |
approx. 20% the width of the joint |
| Shore A-hardness |
30 to 35 |
* at 23°C - lower temperatures lengthen, higher temperatures shorten this time
** at 23°C and 50% rel. humidity. An accelerator can be used at lower temperatures.
Surface preparation
The surface must be clean, dry, solid and free of dust, oils, and dirt. Steel must be cleaned to bright metal. Completely remove any remains of tar oil impregnated joint spacers. Sand blast or grind away cement slurry from joints. Use CONCRESIVE resin mortars to repair breaks at the edges of joints. Joint profiles have to be primed with MASTERFLEX PRIMER NO. 1. Allow the primer to become tack free before applying the ESCUTAN TF. Reprime the joint if it is not possible to apply the ESCUTAN TF within 4 hours of applying the primer. In deeper joints, back-fill the joint with non-rotting, closed cell backer rod.
To prevent the sealant from sticking to the bottom of the joint, lay a foil strip or polyethylene tape down before applying the sealant. Before sealing prime the surface with MASTERFLEX PRIMER NO. 1 (drying time: 50-120 minutes).
Mixing
Mix all of the hardener component with the base component using a suitable mixing head and a slow speed drill (about 400 rpm). Mix steadily for about 5 minutes. Scrape the inside of the tin after 2 minutes.
Cleaning
Use SOLVENT NO. 2 before the sealant starts to set.
Sealing of joints
ESCUTAN TF can be applied horizontally or vertically. With wide joints, press ESCUTAN TF into the edges of the joint first and spread it well with the scraper to achieve sufficient adhesion. Then fill the rest of the joint with more ESCUTAN TF.
Protective sleeves for power line towers
Coat the points where the steel of the tower is connected to the concrete foundation with ESCUTAN TF. Press it in well and smooth the surface.
Consumption
Calculate using the formula: joint width (mm) x joint depth (mm) =ml / meter of joint.
Health and safety
Hardener component:
Contains isocyanate. Follow the manufacturer's instructions carefully. Skin irritant. Avoid skin and eye contact. If contact with eyes should occur, wash thoroughly with water and contact a physician if needed. If the product comes in contact with the skin, wash thoroughly with plenty of soap and water.
Notes
- Do not use ESCUTAN TF at surface temperature of less than +5°C or higher than +40°C.
- In horizontal joints in asphalt and synthetic resin screeds, use ESCUTAN TF only in conjunction with suitable joint profiles.
- ESCUTAN TF is not suited for use in swimming pools.
- The temperature of the ESCUTAN TF components should not drop below +10°C during mixing.
- Do not thin ESCUTAN TF.
Storage
ESCUTAN TF can be stored approx. one year if kept dry.
Chemical resistance (500 hour testing time at +20°C)
|
conc.(wt.%) |
|
| Chemicals according to DIN 4030 |
|
+ |
| Sea water |
|
+ |
| Acids |
|
|
| Hydrochloric acid |
Upto 5% |
+ |
| Sulphuric acid |
Upto 30 % |
+ |
| Lyes |
|
|
Caustic soda
|
up to 5 %
|
+ |
| Ammonia solution |
up to 20% |
+ |
| Fats/oils |
|
|
| Brake Fluid |
|
+ |
| Diesel Fuel |
|
+ |
| EL heating oil |
|
+ |
| Hydraulic oil |
|
+ |
| Mineral oil |
|
+ |
Others
|
|
|
Ethylalchohol
|
Upto 20% |
+ |
| Glycerol |
Upto 20% |
+ |
| Jet fuel |
|
(-) |
Unleaded gasoline
|
|
(-) |
Leaded gasoline
|
|
(-) |
| Sewage |
|
+ |
+ = resistant (-) = short term resistance
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local BASF representative.
BASF reserves the right to have the true cause of any difficulty determined by accepted test methods.