Possible Applications
- Marine and
Offshore structural steel
- Oil & Gas
Industries
- General &
Chemical Industries
| Air Temperature |
5-50°C |
| Substrate Temperature |
5-65°C |
| Relative Humidity |
50% minimum, 85% maximum |
|
Surface temperature shall always be at least 3°C above Dew Point. Do
not expose the coated articles where there are chances of
condensation
on the surface.
|
Mixing
Aqua Mastic is supplied in 2 parts, a liquid binder (Part A) and a liquid curing
agent (Part B).
Always mix curing agent (Part B) into the liquid binder (Part A) while stirring.
75-100 RPM
mixer is recommended.
Surface Preparation
All surfaces to be coated shall be dry and free from oil, grease, dust, dirt and
any foreign
matter that can adversely affect adhesion of coating. Solvent cleaning as per
SSPC SP1 shall
be conducted wherever necessary.
Steel Substrates
Surface shall be prepared by hand/power tool to achieve ST2 / ST3 standard of
surface
preparation as per ISO 8501-1. Any tightly adhering old coating may remain on
surface. For
larger surface areas, abrasive blasting may be carried out to achieve Sa 1 or Sa
2 as per
ISO 8501-1 depending on project specification.
New Concrete
New concrete must be allowed to cure for minimum of 28 days. Any laitance or
efflorescence
must be removed prior to coating. New concrete may be acid etched to create
sufficient
anchorage for coating. Wash the substrate until neutral.
Old Concrete
Old concrete must be inspected for structural strength prior to application of
Aqua Mastic. Any old and aged coating must be inspected for loss of adhesion. If
such condition prevail, it is imperative to remove old coating prior to
application of Aqua Mastic. Any tightly adherent
coating may remain on the substrate.
Thinning
Aqua T01 – 10 - 20 %
Application data
Steel Substrate
Preferably apply first coat of Aqua Mastic with brush. If in case of large
surface area, Aqua
Mastic may be sprayed, however, care shall be taken to ensure application of
stripe coat of
Aqua Mastic. Apply in even and uniform pattern. Do not exceed recommended wet
film
thickness per coat.
Application over
Inorganic Zinc Silicate Primer (Aqua IZ 16-07)
For application over inorganic zinc silicate, it is recommended to apply a mist
coat of Aqua
Mastic prior to application of full coat.
Application over
Concrete
The first coat on concrete is expected to be soaked inside the concrete. To
achieve this, Aqua Mastic may be diluted maximum 20% using Aqua T01 and a thin
coat (~50μ) may
be applied on concrete. Allow to dry for 4 hours before overcoating with Aqua
Mastic full
coat.
Airless Spray
Recommended. Tip range: 0.43-0.58 mm at 3500 - 4000 psi tip pressure.
Conventional Spray
Recommended. Do not exceed spray pressure than 4 Kg/Sq.Cm
Brush / Roller
Recommended