Dr. Fixit Roofseal Classic New
₹4,661.0020 Ltr Bucket + GST ( 18 % )
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MASTERCRETE M-90
100% ACRYLIC MODIFIER
₹2,119.0020 Ltr Bucket + GST ( 18 % )
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Description
Product Description
MASTERCRETE M-90 is a single component 100% acrylic polymer
admixture specially developed to improve the properties of
cementitious compositions. When it is used with combinations with
standard quality of cement, it enhances the mechanical properties
such as bonding (adhesion) with various building materials, flexural,
compression and impact strength. It improves the thin section
fragility of cement when used as coating.
Uses
- Waterproofing of building terrace, toilet sunken portion, basements, waterproofing of water tanks and swimming pools
- Bridge decks, traffic aprons, runway, parking garages, industrial or factory floors, balconies, mechanical rooms, side walls. etc.
- Pools and foundations, reservoirs, channels dams, water tower, tunnels etc. Sewers, silos, foundation walls, swimming pools etc.
- Repairing of concrete & masonry walls- internal, external and terrace roofs by cement mortars
- Protection of concrete against corrosion and efflorescence
- As an additive with cement paints, which improves waterproofing property
- Coverage by 20-25% and life of cement paint
- As a bonding agent for old concrete and new concrete
Packaging
1 Litre, 5 Litre, 20 Litre, 50 Litre, 200 Litre
Technical Data
| Category | Property | Value / Specification |
|---|---|---|
| Physical Properties | Appearance | Milky white, free flowing liquid |
| Specification | IS 101 | |
| Test Value | 14–17 sec (Viscosity on Ford cup at 30°C) | |
| pH Value at 30°C | 7 to 10 (IS 101) | |
| % Solid | 42% (±2%) – IS 101 | |
| Mixing Ratio | For coating | Cement : MASTERCRETE M 90 = 2:1 parts by weight |
| Mortars (RCC repair) | 10–15% by weight on cement quantity | |
| Flooring screeds / Cement paints | 12–15% by weight on quantity | |
| Bonding coat | 2–3 Ltr / 50kg cement bag, or Cement : M90 = 1:1 parts by weight | |
| Drying Characteristics | Initial setting time | 24 hours |
| Initial curing time | 72 hours with moist cloth or water spray | |
| Complete curing time | 7 days under water immersion | |
| Mechanical Properties | Compressive strength (kg/cm²) | 80 ± 20 (IS 4031-88) |
| Impact resistance (inch/lb) | 18 ± 5 | |
| Abrasion resistance | ASTM-D-4213-83 | |
| Chemical Properties | Resistance to chemicals | ASTM-C-672-725, 2% max – Passes |
| Water permeability | ASTM-E96 / DIN1048 – Satisfactory |
Health & Safety
ArmGrout Inject PU4 are nontoxic and non-flammable in nature. However, normal safety gadgets like goggles, gloves should be used while handling the material. Avoid breathing of vapours, when it contacts with skin, should be cleaned immediately. Seek medical advicein case of
contact with eyes.
Storage and Shelf Life
- Store the material in cool and dry place
- Shelf life is 24 months
Features and Benefits
- MASTERCRETE M-90 is easily mixed with cement, cures to hard, tough, weather resistant surface & bonds strongly to most of the building materials.
- MASTERCRETE M-90 can be over coated by exterior emulsion coating or cement based paints. It can be applied to a uniform thickness coating on horizontal and vertical surfaces.
- MASTERCRETE M-90 allows trapped water vapour to escape and prevents blistering and adhesion failure.
It is unaffected by UV light and prevents discoloration of concrete and corrosion in steel due to its alkaline nature. It is resistant to water, dilute acids and alkali solutions. Coating is highly durable even in continuous contact with water. - It is non-flammable, non-hazardous, does not evolve toxic gases when exposed to fire. Non
toxic to human being. - Resist to bacteria, fungus and growth of microorganism provided by good quality of water.
Coverage
- As a bond coat (1:1 ratio) – 60 – 65 sq. ft./ 1 coat (it may vary depending upon the substrate)
- As a coating (2:1 ratio) – 30-35 sq. ft./ 2 coats (it may vary depending upon the substrate)
Cleaning of Tools and Equipment
- Tools and equipment’s can be easily cleaned with water
Curing of MASTERCRETE M-90 Coating & Mortar
- MASTERCRETE M-90 coating should be protected from movements of traffic for at
least 48 hrs. and keptmoist for the next 24 hrs. by sprinkling of water or covering with wet gunny bags. Continue the moist curing for at least 72 hrs. before submersion or ponding in water. - Curing must be continued for minimum 7 days before exposure to weather.
Ponding with water for 7 days itself is a waterproofing test.
Application Methodology
It is the most important step before application to get best results and to avoid failure. The surface must be free from dust, coatings, loose particles, fungus, moss, oils, and mould release agents.
Treat the surface with 5 to 10% hydrochloric acid followed by complete neutralization with water which will improve bonding of the coating.
A. BRUSH COATING APPLICATION
Clean the surface by scrapping, sand blasting, grinding to remove dirt & loose particles. Oils, greases and mould release agent can be cleaned with solvents.
B. WATERPROOFING APPLICATION
- After surface preparation, pre-wet the surface with sufficient water.
- Allow the surface to dry for minimum 1 hour. Mix 2 kg of cement with 1 liter of MASTERCRETE M-90 homogenously till no lump or air bubble remains in the mix.
- Apply coating by brush and allow it to dry for 2 hrs. before application of second coat. Minimum 2 coats are required.
C. CEMENT PAINT ADMIXTURES
- Mix 3–4 liters of MASTERCRETE M-90 with 50 kg of cement paint homogeneously to form a uniform mix.
- Apply the mixed and diluted cement paint by brush.
- Allow to dry 2 hrs. before application of second coat.
- It increases the covering capacity of cement paint by 20–25%.
PATCHING MORTAR
Depressions, voids can be filled and leveled by using MASTERCRETE M-90 mortar. Use 10% of MASTERCRETE M-90 on cement weight.
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