Watertight 2K Technical Data Sheet

Watertight 2K is a water-based two component spray-applied system, which cures INSTANTLY to form a seamless, highly elastic, membrane. These two components are sprayed simultaneously through separate nozzles so that intimate  mixing occurs within the spray, producing an instantaneous solid membrane on the substrate. 

Watertight 2K is principally used in areas where fast curing is essential for situations where there is a high degree of water ingress, Watertight 2K provides an ideal solution. Being water based it can be applied onto damp surfaces, whilst its instant curing means that measures to reduce water flow can be kept to a minimum. Examples of such work are roofing underground structures, canals and reservoirs, where extensive pumping is normally necessary to prevent incoming water from damaging ordinary waterproofing products. It can also be used for general tanking work in wet areas such as basements, bathrooms,kitchens and for waterproofing all types of roofs, particularly flat roofs, where its great strength, elasticity and resistance to UV light ensure very long-term durability. For roofing, Watertight 2K  can take the place of high performance torching and other membranes, with a similar 4 mm thickness and an aggregate finish if required. It has the added benefits of being seamless and not requiring flame torches or hot-melt adhesive.

Watertight 2K is highly versatile, and can be used on structures of any shape. The system is suitable for both remedial or new work, and can be applied to the following:
  • Built-up felt roofs
  • Asbestos cement cladding and roof sheets
  • Metal cladding and roof sheet!
  • Mastic asphalt
  • Concrete roof decks
  • Timber roof decks
  • Most types of roof insulation
  • Underground structures
  • Reservoirs and canals etc.
  • Tunnels and basements

SPECIAL FEATURES
  • Instant membrane formation ... instant waterproofing.
  • Seamless finish gives absolute water tightness.
  • Highly Elastic: Elongation in excess of 1000%.
  • Environmentally Friendly: Cold-applied, non-hazardous, without fumes.
  • Applied in a SINGLE high-build layer, making it very cost effective.
  • High UV resistance.
  • Resistant to both high and low temperatures.
  • Resistant to puncturing, and self-healing if cut throughout its lifetime.
  • Good anti-corrosion properties due to its high pH value.
  • Suitable for use in contact with drinking water.
  • Excellent slump resistance.
  • Can be applied onto "green" (i.e. uncured) concrete.
TECHNICAL DATA
   Properties:

Colour:                                          Brown
Method of Application                   Spray only 
Specific Gravity:                           1.003 ± 0.002 
Solids:                                           60% ± 1% 
PH:                                               Approximately 12 
Application Temperature Range: +3 C to + 40°C 

Properties of the Dried Film: 

Colour:                                          Black 
Heat Flow Resistance:                   No slump after 2 hours at 80 °C on a vertical surface 

Cold Temperature Resistance:      No slump after 4 hours at 130°C on a 75° slope 

Elongation at Break :                   - 20°C (180° bend over 20 mm diameter mandrel) 
                                                         1000 % (Did not break when tested to ASTM: D412) 

Water Tightness:                          Withstood 60kPa (0.6 bar) water pressure (DIN 53363) 

Weathering Resistance                After 2000 hours of QUV testing (equivalent to 10 years) elongation was still > 1000 %                     
                                          

Physiological Properties :            Non-toxic during application and as dried film. 
                                                       No Plasticizers or fillers

STORAGE
Protect from frost. Store between 5°C and 30°C. Shelf life is a minimum of 12 months in tightly sealed containers. Agitate regularly if in storage for a lengthy period.

SURFACE PREPARATION
All surfaces should be sound and firm, and be correctly prepared, free from dust, dirt, oil or grease, and fungus growth. 
It may be necessary to apply a primer to porous substrates before coating with Watertight 2K. For roofing, if the surface is cracked or porous, it must first be sealed to prevent the water which breaks from the Watertight 2K from penetrating into the building.

COVERAGE DATA 
We would normally recommend a coverage rate of 7kg of material per square metre. This gives a dry membrane thickness of about 4.2 mm. The coverage rate can be reduced depending on the application, for example 4kg per square metre is used on pitched metal roofing.

APPLICATION
Watertight 2K is applied using specially designed spray equipment. The diesel spray machine weighs about 150 kg, and the electric weighs 75 kg. Both are mounted on wheels and are extremely versatile. The whole job can be done with a crew of only 3 people and is even possible with only 2, making the method mobile and fast. As much as 800 m2 can be applied in a single day, whether on horizontal, vertical or overhead surfaces. 

FINISHING 
The membrane can be left exposed, or it can be painted with  Watertight SP Topcoat for decorative purposes. Alternatively, apply stone mineral into a second, thin, spray coat after the membrane has fully dried. 

HEALTH AND SAFETY 
Watertight 2K is non-flammable and non-hazardous. The product can be removed from the skin with soap and water when wet, and by using a proprietary hand cleanser when dry. In the event of contact with eyes, wash them with clean water.

All Trident Coatings product information is given in good faith and every effort is made to ensure that it is accurate at time of issue. it is, however, the customer's responsibility to ensure that products are suitable for the required purpose and if in doubt, sample orders should be taken for trial purposes.