STP Limited
Near Stock Exchange, Kolkata, West Bengal
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Chemical Waterproofing


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ShaliCem EWP AR is ready to use two component anti-root waterproofing coating based
on graded cement, in combination with selected admixtures, synthetic resins and
polymers. ShaliCem EWP AR is highly recommended for terrace waterproofing, roof
garden and planters.
Pot Life @ 30 OC 1 hr Mixed Density 1.80 approx.
Adhesion to Concrete Excellent Application Temperature, OC > 10 – <40
Theoretical Coverage,
kg/m2 (depending upon
surface condition) *
2.5 kg for 1.5 mm
Recoating Time @ 30 OC
• Minimum
• Maximum
12 hr
24 hr
Water Head Resistance
(Reinforced )
30 meter Elongation 40%
Tensile strength 630 N/5cm Puncture resistance 250 N
Crack bridging ability 2mm UV Exposure-500 hrs No
Anti-Root Test
* Depending upon surface condition.
• Waterproofing of landscaping, terrace garden and planters.
• Anti-root.
• UV Resistant.
• Exhibits good water proofing character.
• High Flexibility.
Application Methodology
• Ensure that structure is sound and free from dirt, soil, oil release agents, laitance and any
other foreign materials which may impair the bond, penetration and/ or the overall
performance of ShaliCem EWP AR.
• Chemically remove any efflorescence, form oil, mould etc.
• Repair any cracks, honeycombed pockets or holes by Shalimar Dam-It or PlastiSeal.
• Ensure to dampen walls for an hour before application and keep damp allowing
moisture to soak in. Wet dense concrete at least twice, not less than 30 minutes
apart. Surface must be damp during application. Do not allow standing water.
• Prime the area with slurry by mixing one part of ShaliCrete E with two parts of neat
cement i.e. in the ratio 1 : 2.
• Add Component B into a suitable container containing and thereupon, add
Component A slowly whilst mixing thoroughly mix it preferably in a Jiffy Mixer.
• Crush any globules formed to make uniform paste and continue mixing.
• Apply ShaliCem EWP AR on clean and dampen surface with stiff fibre brush. Scrub
well into the damp wall filling all pores and finish with final stroke in one direction.
Keep a wet edge.
• Apply second coat when the first coat is touch dry.
• Allow to dry for 24 hr before moist curing. Do not apply water through a hose or
pressurized nozzle.
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Two Component Cementitious Elastomeric Waterproofing Coating
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Cold Applied Adhesive for ShaliPlus / APP
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ShaliSeal PU (earlier known as ShaliFlex PU) is single component Polyurethane 1st category
elastomeric sealant. ShaliSeal PU resists cracking arising out of movements of joint materials.
Skin formation time , at 23
OC 50 % RH- mints
90 – 120 Setting Time 25 OC, at 50%
RH- Hrs
8 – 10
Flash Point, OC > 55 Solid content, % > 90
Application Temperature 5 to 40 Specific Gravity 1.30 – 1.40
Modulus elasticity at 100 % 0.25 MPa Resistance to flow
· at 23 OC
· at 50 OC
< 1 mm
< 3 mm
Service Temperature, OC - 40 to + 80
Elongation at break,% > 400
Elastic recovery, % > 70 Movement Compatibility, % 25
Hardness, Shore A 25
· Expansion Joints in building industry.
· Sealing joints for heavy frontage panels, curtain walls, assembling of panels, exterior woodworks
· Joints between frames and pre-frames and wood and stone wood.
· One component ready to use.
· Good adhesion on many substrates.
· Good weathering and aging properties
· Excellent workability, easy to use.
· Can be top coated.
Application Methodology
· Surface must be clean, dry and free of grease, oil and painting compound.
· Concrete surface must be dry and stable (atleast) four weeks.
· Check that mastic is compatible with surface in terms of adhesiveness, staining and chemical
compatibility (test a section first).
· If necessary apply a thin layer of Sealant Primer on the surface.
· After the primer has dried press flexible non adhesive filler on to the groove.
· The joint filler should be free of holes to ensure that bubbles do not form in the joint. For better
finish use protection strip.
· For a narrow joint apply the mastic in one movement and for very wide joint, apply the mastic in
three places: The first two on the edges of the joint and third in the joint filler.
· Smooth out with soapy water. Press the mastic against the edges and the joint while taking care
not to create air bubbles. Remove protection strip.
Cleaning Maintenance
Clean the equipment with solvent like Xylene, Toluene. Polymerized mastic can be scrapped off.
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Dilip (Manager)
STP Limited
6 Lyons Range, Near Stock Exchange
Kolkata - 700001
West Bengal, India
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