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Brushable waterproofing mortar for walls, floors, basements and roofs




(Measurement conditions 20 oC and 50% RH)

Form - Color

Cementitious powder - White, grey

Toxic/Flammable (per ΕΝ 88/379)


Bulk density of dry mortar

1.10±0.05 kg/lt

Bulk density of fresh mortar

1.60±0.05 kg/lt

Maximum grain size

0.6 mm

Water requirement

6.0 lt of water per 25kg of mortar

Application temperature

From +5°C to +35°C

Temperature resistance

From –30°C to +90°C

Pot life

1 hour

Application thickness

1 mm per coat

Foot traffic

After 3 hours


After 3 days

Water tightness per DIN 1048*

Under water pressure
up to 7atm (kg/cm²)


Strength for 28 days, per ΕΝ 196-1, in:


7.50 ± 1.00 N/mm²

Compression 25.0 ± 1.00 Ν/mm²

Shrinkage per ΑSΤΜ C596


Permeability SD to CO2,
per EN 1062-6 (method Α)

SD = 178 m

Water vapor permeability SD,
per ΕΝ ΙSO 7783-2:      

SD= 0.13m [ class Ι, (water vapor permeable)]

Capillary water absorption w ,
per ΕΝ 1062-3 :

w<0.090 kg/m2.h 0,5

Adhesion to concrete, perΕΝ 1542:

> 2.50 N/mm²

*Laboratory testing by the Ministry of Environment & Buildngs 516868/872 ΚΕDΕ 530/58899


Brushable cementitious waterproofing mortar with excellent adhesion. It fully waterproofs surfaces due to its polymer and water repelling ingredients.
DUROSTICK D-1 is suitable for positive (preventive exterior application) and negative (interior application for repair purposes) hydrostatic pressure applications. It is resistant to frost. It is water vapor permeable (breathable).
Classified as product for surface protection of concrete surfaces (c) per EN 1504-2.


Apply on well soaked surfaces made of concrete elements, walls and floors. It waterproofs surfaces made of brick, concrete blocks and cement screeds as well as plaster and aircrete, etc.
Ideal for the exterior waterproofing of basements and walls, prior to backfilling. The sealed surface with D-1 have to be protected by a drainage membrane (dimpled membrane).
D-1 is ideal even for ‘post backfilling’ waterproofing of vertical or horizontal internal surfaces. It is necessary to remove the plaster throughout the area with  moisture before the waterproofing. Excellent for waterproofing underground floors and ground level floors, protecting from rising damp. It fully waterproofs water tanks, swimming and athletic pools, bathrooms and showers, as well as flower planters, air shafts and tunnels.Walls made of brick or concrete blocks must be waterproofed before applying the first coat of plaster.
The product is also recommended for pitched concrete roofs before lining with clay roofing tiles, north facing walls and generally any mineral surface exposed to partial or continuous moisture.


1. Surface preparation
Remove all wood wedges, polystyrene and sharp protrusions. Cut the snap ties and tie rods 2-3cm deep, and coat them using DUROSTICK RUST FREE POWDER (corrosion inhibitor). Seal the newly formed holes using D-55, DUROFIX or SUPER FAST of DUROSTICK. Continue by thoroughly cleaning all surfaces from loose materials, formwork oils and salts using the biodegradable oil detergent BIOCLEAN (for industrial use).  Rinse thoroughly with water.
2. Application
DUROSTICK D-1 applies to meticulously soaked surfaces in 2-4 equal thickness crosswise coats of 1mm thick. Use an emulsion or round brush or a roller for emulsion paints, or even metallic trowels. Empty the material in a clean container with cool water, at a mixing ratio of 25kg powder to 6-6.5lt water (5kg D-1 to 1.2-1.3lt water).
Mix using a low rpm electric drill equipped with the appropriate attachment (recommended), until a lump free, homogenous mass is produced. The mixture have to be thick enough so it does not drip from an emulsion brush or roller.
The mixture remains workable for 60 minutes. Apply each additional coat approximately after 2 hours, while the previous one is still fresh. In case the product remains on the surface longer than 2 hours, resoak the surface. Protect the finish surface for the next 24 hours from high temperatures by frequently soaking it. Protect the surface from frost using polystyrene panels.


• If the substrates to be coated with DUROSTICK D-1have hairline cracks or there is a need to protect them from natural or other types of vibrations, use an acrylic additive. Add the acrylic emulsion D-20 of DUROSTICK in the mixing water at a ratio of one part water to one part D-20, up to two parts water to every one part D-20. Alternately use 5 parts water to one part DUROMAX to ultimately increase the flexibility of the product, the surface resistance to abrasions and its adhesion. Adding an emulsion will also increase the products waterproofing properties.
• After drying the product is harmless to health.


1.0-1.3kg/m²/mm thick coat.





2.0 kg/m2 (2 coats)

Approx. 1.5 mm

Water exerting miin.presure

3.0 kg/m2 (3 coats)

Approx. 2.0 mm

Water exerting max.presure

3.5-4.0 kg/m2 (4 coats)

Approx. 2.5 mm


Store in tightly closed packages, in dry and shaded places for at least 12 months from production date.


The product contains Portland cement. Before use, refer to the cautions on the product’s package or in the Material Safety Data Sheet.


Carton box with 4 bags of 5kg each one.
Paper bag of 25kg on a1.500kg pallet.