Description
Uses of Water Protective Lining
- Waterproof lining for water tanks, dams, canals,…etc.
- Covered roofs and wet-areas waterproofing while receiving tile adhesives.
- Protecting concrete and masonry structures against ingress of chloride ions and carbonation.
- Negative hydrostatic pressure resistance.
Advantages of Vetoproof CM745
- Non-Toxic – approved in contact with drinking
water.
- Flexible, crack bridging.
- Waterproof.
- Ready to receive tile adhesives.
- Withstands high positive and negative
hydrostatic pressures.
- Easy application by brush, roller.
- Bonds to damp concrete.
- Effective barrier to sulfates and chlorides.
- Excellent bond to concrete and masonry.
Standards Compliance of Vetoproof CM745
- EN 1992-3:2006 – Eurocode 2. Design of concrete
structures. Liquid retaining and containing
structures
- EN BS 6920 – Elevated temperatures.
- DIN 1048 : Water Penetration Test.
- Fire Tested to BS476 : Parts 6 -2009 and 7-1997.
SURFACE PREPARATION:
- Ensure all surfaces are dry and free from contamination such as oil, grease, loose particles, decayed matter, moss, algal growth, laitance, mold release oils, and curing compounds.
- Lightly grit-blast the surface for optimal results.
- Treat moss, algae, or similar growth with a proprietary biocide after grit-blasting.
- Remove spalled and deeply disintegrated concrete; repair with a Saveto repair system.
Limitation: Do not apply the product at a temperature less than +5ºC.
INSTRUCTIONS FOR USE:
1. Mixing:
- Pour Vetoproof CM745 liquid concentrate into a mixing container.
- Use a propeller agitator attached to a slow-speed drill.
- Gradually add the powder component to avoid lump formation and mix for 2-4 minutes.
- Use immediately; do not exceed the pot life.
2. Pre-wetting of the substrate:
- Dampen the substrate with water using a brush roller or spray bottle.
- Don’t apply the coating when the substrate is wet; allow it to be visibly damp.
- Remove excess water with a sponge. Stop running water with Vetoproof CR747 if needed.
3. Application:
- Apply Vetoproof CM745 white as the first coat and Vetoproof CM745 grey as the second coat.
- First coat: 1mm wet film thickness, approximately 1.7 kg/m2 or 1 liter/m2.
- Monitor coating thickness with a wet film gauge. Fill imperfections during application.
- Second coat: Apply at 1mm wet film thickness without pre-dampening.
4. Brush Application:
- Use a soft-bristled wallpaper paste brush or broom.
- If dragging occurs, dampen the surface instead of adding water to the material.
- Finish in one direction for a neat appearance.
5. Roller Application:
- Use a medium hair roller for quick application on smooth substrates.
- Load the roller well for ease of application.
- Use a finishing tool for a smooth, uniform coating.
6. Finishing Tools:
- Use steel plastering trowel, caulking tool, or hard sponge immediately after application.
- Do not use a wet sponge, as it can cause an unsightly effect.
7. Spray Application:
- Use specialized pumping equipment for areas over 150m2.
- Follow mixing procedure; avoid lumps.
- Measure wet film thickness using a gauge regularly.
8. Sealed Joints:
- Seal joints with an approved joint sealant before applying Vetoproof CM745.
- Apply debonding tape over the sealant; remove after Vetoproof CM745 application.
9. Curing:
- Allow Vetoproof CM745 to cure for at least 7 days before commissioning.
10. Cleaning:
- Immediately clean tools and equipment with clean water.
- Remove hardened material by mechanical means.
Surface Preparation
All surfaces should be dry and free from contamination,
such as oil, grease, loose particles, decayed matter, moss
algal growth, laitance, and all traces of mold release oils
and curing compounds. This is best achieved by lightly
grit-blasting the surface. Where moss, algae, or similar
growths have occurred, treatment with a proprietary
biocide should be carried out after the grit-blasting
process. Remove spalled and deeply disintegrated
concrete to sound concrete and repaired with a Saveto
repair system.
If the surface contains small blow-holes, typically less
than 1mm wide, the coating can be applied directly
onto the substrate without the need for treatment.
Cracks that are less than 0.3mm in width can be over-
coated as long as the crack is not likely to open up to
greater than 0.3mm. Chased out cracks greater than
0.3mm in width to 4mm in width and approximately
15mm in depth; fill with Vetoproof CM745. When the
material in the crack hardens, apply the coating over
the crack.
Mixing
Pour Vetoproof CM745 liquid concentrate from the
plastic container into a suitably sized mixing container.
Commence mixing with a propeller agitator attached
to a slow speed drill (300-500rpm). Gradually, add the
powder component to the liquid part to avoid lump
formation and mix for 2-4 minutes. Immediately after
mixing, use Vetoproof CM745. Do not mix material
more than the quantity that can use within the pot life.
Keep mixing Vetoproof CM745 during the application.
Pre-wetting of the substrate
Thoroughly dampen the substrate surface with water
using a brush roller or spray bottle. High porosity
substrates will require more dampening than dense
substrates. Do not apply the coating when the substrate
is wet, but allow the water to soak until the substrate is
just visibly damp before proceeding.
Remove any excess water using a sponge. Stop any
running water with a suitable plugging mortar such
as Vetoproof CR747. Contact the local Saveto office
for further advice on other suitable water-stopping
materials.
Application
Vetoproof CM745 white should be applied as the first
coat for optimum product use, with Vetoproof CM745
grey as the second coat. This gives a visual indication
of coverage.
Apply the first coat at a wet film thickness of 1mm
(approximate coverage per coat is 1.7 kg/m2
or 1 liter/
To ensure achieving the correct thickness, measure out
an area (for example, 200m2) then calculate how much
material will be needed to cover this area. Monitor
the coating thickness during application at regular
intervals using a wet film gauge. During application,
take care of filling the imperfections such as blowholes.
If not, fill them while the coating is still in fluid status by
using a dry sponge. If the coating dried before finding
these imperfections, fill them using fresh material.
The exact drying time will depend on surface
temperature, relative humidity, and air movement.
High temperatures and/or low humidity will reduce
the drying time. This can vary from 1 to 16 hours. Leave
the first coat to dry until firm and non-markable to
the touch. There is no maximum time between coats;
however, the surface may need cleaning with water
before applying the second coat to remove potential
contamination.
Apply the second coat at a wet film thickness of 1mm.
Pre-dampening of the surface is not necessary before
applying the second coat.
However, Vetoproof CM745 is self-curing; it protects
the freshly applied coating from rain and strong wind
until it becomes firm to the touch.
m2
).
Brush application
The most suitable brush is a soft-bristled wallpaper
paste brush (120 – 220mm wide). Where applied to
larger areas, it is advisable to use a brush with a handle.
Load the brush up well and spread the material to the
required thickness. If the brush begins to drag during
the application, do not add water to the material but
dampen the surface again. Finish in one direction for
a neat appearance. For floor application, a soft-bristled
broom is recommended. Pour the material onto the
substrate and then spread it to the required thickness.
Roller application
Application by roller has the benefit of quick
speeding over brush application, particularly on
smooth substrates. A good quality medium hair roller
is recommended. Load the roller well for ease of
application.
A heavy roller will leave a pattern; therefore, it is
important to use a finishing tool to produce a smooth
coating with a uniform 1mm wet film thickness.
Spray application
Carry out spray application using specialized
pumping equipment (contact Saveto’s local office for
more information). This is the preferred method for
applications over 150m2
.
In smaller tanks with restricted access, it may be
beneficial to use the spray application method. This
means the material will be pumped into the restricted
area rather than carrying it physically.
Follow the mixing procedure as previously described,
taking extra care in mixing to ensure that no lumps
remain in the mix. Place the mixing container on
plastic sheeting to prevent contamination in the mix.
Scrap the material from the mixing vessel above the
wet line following every mix. Clean the mixing paddle
to remove hardened material, which, if ingested, may
cause blockage in the pump.
Pour the material into the hopper. Scrape the sides
of the hopper down at regular intervals to prevent
hardened material from contaminating the mix. Place
a cover over the hopper to prevent product skinning
caused by water loss.
Pump the mixed material through the hose to the spray
gun. Adhere to the substrate preparation and coverage
rates described above. Measure the wet film thickness
using a wet film thickness gauge every 2-3 meters
until the spray operator judges the ideal application
speed and distance from the substrate. Re-spray any
areas less than 1mm thick. Subsequent film thickness
measurements should be carried out approximately
every 10m2.
Sealed joints
Before applying Vetoproof CM745, and where required,
seal joints with a suitably approved joint sealant. For
further details on suitable sealants, contact your local
Saveto office.
Apply debonding tape over the sealant. Following the
application of Vetoproof CM745, remove the tape and
overlaying coating.
Curing
Allow the Vetoproof CM745 to cure for at least 7 days
before commissioning.
Cleaning
Immediately following the application, clean all tools
and equipment with clean water. Hardened material
can be removed by mechanical means.
Packaging & Coverage
Stated consumption data are for general guidance.
Actual consumption depends on the nature of the
substrate, consistency used, method of application,
and wastage.
Shelf Life & Storage
The original sealed bag and container of Vetoproof
CM745 have a shelf life of 12 months, provided it is
stored clear of the ground, in a dry, shaded place below
35oC.
Health & Safety
Vetoproof CM745 powder is irritating to the eyes,
respiratory system, and skin. Avoid inhalation of dust
and wear suitable respiratory protective equipment.
Vetoproof CM745 liquid is not classified as dangerous—
Vetoproof CM745, when mixed, becomes highly
alkaline. Wear suitable protective clothing, gloves, and
eye protection.
For both components and the material, when mixed,
avoid contact with eyes or skin. In case of contact, rinse
immediately with plenty of water and seek medical
advice. Waste material should be allowed to harden
overnight then disposed of as non-hazardous waste.
Vetoproof CM745 is non-flammable.
For further information, please refer to the Product
Material Safety Data Sheet.
