Epoxy cement-based waterproofing mortar and slurry. Diasen WATstop is a three-component, fibre-reinforced cement/epoxy product that, when mixed, produces a workable mortar suitable for surface repair and surface smoothing. With the addition of up to 40% water, a paint/slurry-like consistency can be achieved that is suitable for numerous applications including the damp proofing of walls and slabs and the waterproofing of concrete structures.
Applications:
- Surface repair to concrete
- Smoothing of concrete and mortar
- Damp proofing of slabs and walls
- Waterproofing of concrete structures such as lift pits and swimming pools
Advantages:
- Multipurpose solution
- Resistant to up to 9.5 bar of positive and negative pressure
- Excellent adhesion to the most common surfaces used in construction
- Solvent-free
- If applied by trowel it can be applied in just one coat
- If applied by roller or brush it can be applied in one or two coats depending on the coverage
Suitable Substrates:
- Concrete
- Structural masonry
- Ceramic
- Steel
- Screed
- Ferrous metal
- PVC
Suitable Surfaces:
Waterproofing of:
- Walls – Positive pressure and negative pressure
- Slab/raft – Negative pressure
- Soffit – Negative pressure
- Deck – Positive pressure Yield: 7.5 litres per 10kg as a mortar
Storage:
Store in dry conditions at temperatures between +5°C and +35°C with containers fully sealed.
Do not expose to freezing conditions. If these conditions are maintained and the product packaging is unopened, a shelf life of up to 12 months can be expected.
| Technical Data* |
| Features |
Results |
Units |
| Yield |
1.0 kg/m² as a vapour barrier with a substrate moisture content < 4% |
kg/m² |
| 2.0 kg/m² as a counter-thrust waterproofing |
kg/m² |
| 0.21 lb/ft² as a vapour barrier with a substrate moisture content < 4% |
lb/ft² |
| 0.41 lb/ft² as a counter-thrust waterproofing |
lb/ft² |
| Colour |
Black |
– |
| Mixing water |
10-20% by weight if the product is applied by trowel;
30-40% by weight if the product is applied with a short-hair roller or brush |
– |
| Pot life (T = 23°C / 73.4°F; U.R. 50%) |
2 |
Hours |
| Waiting time between 1st and 2nd layer (T = 23°C / 73.4°F; R.H. 50%) |
Maximum 24 |
Hours |
| Application temperature |
+5 / +35
+41 / +95 |
°C
°F |
| Drying time (T = 23°C / 73.4°F; U.R. 50%) |
5 – 12 hours |
Hours |
| Storage |
12 months in original packaging and in a dry place |
Months |
| Packaging |
10kg plastic bucket |
Kg |
*The above data, even if carried out according to standard test methods, are indicative and may be subject to changes to the specific site conditions
| Final Performances |
Results |
Units |
Regulations |
Result |
| Waterproofing with positive pressure |
9.5
139.61 |
atm
psi |
UNI EN 12390-8 |
– |
| Waterproofing with negative pressure (counterthrust) |
9.5
139.61 |
atm
psi |
– |
– |
| Water vapour permeability |
μ = 13361 |
– |
EN ISO 7783 |
– |
Adhesion on concrete surface
(Adhesion test pull off) |
2.5
362.59 |
N/mm²
lbf/in² |
UNI EN ISO 4624 |
good |
Adhesion on tuff
(Adhesion test pull off) |
3.0
435.11 |
N/mm²
lbf/in² |
UNI EN ISO 4624 |
good |
Adhesion on chipping floor
(Adhesion test pull off) |
1.5
217.56 |
N/mm²
lbf/in² |
UNI EN ISO 4624 |
good |
Adhesion on expanded polyurethane panel (PU)
(Adhesion test pull off) |
1.25
181.30 |
N/mm²
lbf/in² |
UNI EN ISO 4624 |
good |
Adhesion on expanded polystyrene (EPS)
(Adhesion test pull off) |
1.50
217.56 |
N/mm²
lbf/in² |
UNI EN ISO 4624
ASTM D4541 |
good |
Adhesion on glazed ceramic tile
(Adhesion test pull off) |
2.50
362.59 |
N/mm²
lbf/in² |
UNI EN ISO 4624
ASTM D4541 |
good |
| Solvent resistance |
– |
– |
– |
non resistant |
| Organic acids resistance |
– |
– |
– |
non resistant |
| Inorganic acids resistance (5% concentration) |
– |
– |
– |
not good |
| Resistance after 50 freeze-thaw cycles (-15°C/+15°C) |
– |
– |
UNI EN 202
ASTM C666 |
unchanged |
| Weathering test resistance** |
1680 hours (> 10 years**) |
hours/years |
EN ISO 11507
ASTM D4587 |
– |
| Water tightness test |
2 |
kPa |
UNI EN 1928 (method A) |
test passed |
** 1680 hours of accelerated ageing corresponds to approximately 10 years. This correspondence is purely indicative and may vary considerably depending on the climatic conditions of the place where the product is used.
Please see our Delivery policy page for full details of our delivery terms and conditions, including information on exclusions, geographical restrictions, third parties, and failed deliveries.
Delivery Timescales
We will endeavour to deliver all orders within 1-3 working days (subject to geographical restrictions). Please note, where delivery lead-times for individual orders may be subject to change, we will keep you informed directly by phone or email within 24 hours of your order being placed.
Deliveries will not be made on UK bank holidays, and in such cases will fall on the next working day.
Standard delivery hours are between 8am and 6pm, Monday to Friday. If you are not available to accept the delivery when it is attempted, then a failed delivery charge will be applied (see the Delivery page for full details).
Delivery Communications
We aim to dispatch and deliver all our products within their specified time frames. You will get notified by BaseTec via email when your products have been dispatched. This will include details of your order and the expected delivery time. BaseTec will contact you via email or phone if there are any delays in picking your order or after dispatch.
If any products are out of stock or unavailable at the time of ordering, the BaseTec team will contact you by phone or email to discuss your options.
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