Waterproofing Products & Services

Contech Chemicals is a leading manufacturer of construction chemicals as well as waterproofing contractors with over four decades of experience and more than a thousand satisfied customers. Pairing up our product and our technical expertise, we offer you a complete on site solution which will make your construction sound and durable. Some waterproofing products include cement based coating system, polymer based flexible coating system, silicon based coating for exposed and heritage structures, heat insulation and waterproofig coating, bituminous based coating system.

We also undertake turnkey contracts for waterproofing works for terraces, facade coating, bathroom sunk in residential schemes as well in water retaining structures such as water tanks, Clarifiers, Swimming Pools, water treatement plants (WTPs), Sewage Treatment Plants (STPs) etc.

Rufcoat: Polymer Waterproofing Coating System

₹ 220 /Kg Get Latest Price

Usage/ApplicationWaterproofing coating for oof having Tiled / PCC finish, Flat or Sloping, Exterior walls, Water tank
Packaging Size1 kg, 5 kg, 10 kg, 20 kg
Surface Of ApplicationRufcoat can be applied on roof having Tiled / PCC finish, Flat or Sloping, Exterior walls,Water tank
TypeAcrylic based cementitious waterproofing coating system
Packaging TypeHDPE Bucket
BrandContech Chemicals
MaterialAcrylic Coating
Waterproofing TypeCementitious based waterproofing system
Product TypeWaterproofing
Country of OriginMade in India

It is an Acrylic polymer based cementitious flexible waterproofing coating system for the roof having Tiled/IPS finish, Exterior walls, Water tanks as well as for filling up the cracks. Rufcoat Polymer Waterproofing Coating is supplied Polymer-based Liquid mixed along with cement and water at the site as specified. The prepared paint is applied with brush to make the surface waterproof.

The advantage of the Treatment:

  • Ready to Use, easy to apply. Lightweight.
  • High adhesive power to all types of surfaces.
  • Non-toxic
  • Good flexibility
  • Cost-effective
  • High abrasion & U/V resistance
  • Good Chemical resistance
  • Can be applied even on a wet surface
  • No curing required

Price Range:

Hydroshield- Cement Admixture

₹ 68 /Kg Get Latest Price

BrandContech Chemicals
Packaging Size25 L Hydroshield liquid + 50 kg Hydroshield powder
TypeCementitious based waterproofing coating system
Physical StateLiquid, Powder
Packaging TypeDrum

Hydroshield is a cement admixture mixed in the plastering mortar for providing Plaster / IPS-PCC, Fillets in the structures to make them waterproof and also increases the strength of the mortar. Hydroshield mixed mortar withstands high water pressure as well as have high adhesive power to concrete & masonry surfaces. Hydroshield confirms to IS 2645-1975 standard.

Application Areas
Hydroshield is used for waterproofing water retaining structures such as Water tanks, Effluent treatment plant, Toilet sunk, Basement Retaining wall, Garden terrace, Grouting of the Pipe hole etc.

Rufferseal - Bituminous Waterproofing Coating System

₹ 185 /Kg Get Latest Price

BrandContech Chemicals
Available ColourGrey
Usage/ApplicationRoofs, Metal, Wood, Concrete
Packaging TypeBucket
Packaging Size20Kg

Rufferseal (Bituminous) based waterproofing compound available in Liquid & Paste from, for stopping the water leaking from R.C.C., A.C. / G.I. Sheet Roof. We are one of the leading manufacturer and distributor of Bituminous Coating which also serves as corrosion protection coating as well as standalone waterproofing coating surfaces coming in contact with soil like in exterior basement walls/Garden Terrace.

The offered product provides corrosion protection coatings for all types of iron, steel, masonry, or concrete surfaces for fixing glass panels on building elevation. Owing to the non-toxic and odorless properties, this product is ideal for coating the inside of masonry or steel water tanks.


  • Nontoxic
  • Easily applicable
  • Recommended for concrete or metal surfaces
  • Tank Mastic provides corrosion protection coating to all types of iron, steel including drums, and masonry or concrete surfaces for fixing glass panels on building elevation
  • It, being non-toxic/odorless, is suitable for coating insides of masonry/steel water tanks


  • It is easily applicable by brush/spray gun. It dries rapidly leaving black glossy finish.
  • The resultant film is tough and elastic and does not crack easily due to structural movements.
  • It is resistant to diluted acids and alkalis.
  • It is non-toxic and does not impart odor or taste to water or other contents in contact.

Terrace Garden Waterproofing Service

₹ 70 /sq ft Get Latest Price

Type of ProjectTerrace Garden Waterproofing Service
Location/CityPan India
Waterproofing TypeCementitious, Sheet Membrane, Liquid
Brand of Product UsedContech Chemicals
Water Proofing MaterialChemical
Services includeMaterial
Type Of ConstructionIndustrial, Residential, Commercial

With the huge understanding of this realm, we are much esteemed in rendering Terrace Garden Waterproofing Service. Employees render this service as per their specific necessities. In order to accomplish the remarkable gratifications of our clients, we implement these services with extreme care

Rufcoat Waterproof Coatings

₹ 230 /sq ft Get Latest Price

Surface of ApplicationRoofs , Wall , Toilet Sunk, Water Tank
Packaging Size20 KG

RUFCOAT FLEXI from ConTech Chemicals restores your peace of mind by providing a cost effective, flexible, seamless waterproofing coating, solving all your leakage problems.

Some of the salient features of RUFCOAT FLEXI are:

  • It is a single component waterproof paint easy to apply by brush / spray / roller.
  • The coating is a highly elastomeric , with more than 300% elongation.
  • It effectively stops leakages from all types of roof surfaces like Tiled, IPS, old Brickbat coba treatment and unfinished R.C.C. slab and is also used for waterproofing Wall, Toilet Sunk, Water tank etc.
  • It has got U/V, abrasion & chemical resistant properties.
  • Its application is user friendly and faster.
  • It is most economical compared to the cost of other waterproofing treatments.
  • It has a excellent CO2 diffusion resistance properties thus it can be used for Anti carbonation Coating.

Flexible Waterproofing Coating

₹ 230 /Kg Get Latest Price

Packaging Size20 L
Surface of ApplicationRoofs
Packaging TypeBucket

Rufcoat-flexi is a flexible waterproofing and anti carbonation coating for roof, wall and allother concrete surfaces. It is ready to use single component acrylic polymercoating formulated with a blend of high performance polymer emulsion with fine fillers biocide and other ingredients.

Rufcoat-flexi protects surfaces from the ingress of water and stops the passage of water vapour. It is an effective barrier against carbon dioxide gas causing corrosion of steel and spalling of concrete.

Advantage of rufcoat-flexi:

  • significant resistant to cracking, chalking,and peeling properties
  • single component and easy to apply by brush /spray / roller.
  • stable over a wide range of temperature variation.
  • non toxic and environment friendly product.
  • good waterproofing properties.
  • high adhesive power to all types of surfaces.
  • good durability and weather ability.
  • suitable for all types of roof, exterior wall and concrete structures.
  • highly elastomeric , up to 2. 0mm live crack accommodation
  • excellent co2 diffusion resistance.
  • excellent opacity.
  • uv curing

APP Membrane Waterproofing System

₹ 3,000 /Roll Get Latest Price

BrandContech Chemicals
Packaging Size20 L
Type of ConstructionIndustrial
Site Locationin around Gujarat
Service LocationPan India

Applicator of App Membrane Waterproofing on exposed RCC slab a neat slurry mix of cement and waterproofing compound is spread evenly with brick bats. We offer these services as per the clients’ demands and highly appreciated by them for their timeliness, promptness, flexibility and affordable price structure. Clients can access these services from us at highly competitive prices.


Other Details

  • Easy to install
  • Excellent design
  • Rendered by professionals

Chemical Waterproofing Compound

₹ 240 /Kg Get Latest Price

CategoryCementitious Waterproofing, Acrylic Based Polymer Coating, Waterproofing Coating
Packaging Size10kg, 20kg
Packaging TypeBucket
Form of ChemicalsLiquid

We offer varous types of waterproofing products as per application. Chemical Waterproofingis a very strong integral water proofing chemical for both concrete and plaster. Chemical Waterproofing is a blend of selected cement, high-grade silica aggregates and moisture activated chemicals.In the presence of water, the active chemicals present will penetrate in to the water bearing capillaries of concrete and react with lime to produce insoluble crystals. This crystalline growth will seal the pores and hair line cracks in the concrete and thus effectively block further passage of water.



  • Easy to apply by brush
  • Good adhesion sound and prepared to substrates
  • Good abrasion resistance
  • Protects against water and salt penetration and carbonation
  • Non toxic when cured hence suitable for contact with drinking water
  • Non-corrosive to reinforcing steel

Rufcoat-MR : SBR Based High Build Coating

₹ 210 /Kg Get Latest Price

Available ColourBlack
Area Of ApplicationRCC structures
Application MethodBrush or Roller
Grade StandardINDUSTRIAL
BrandContech Chemicals
Pack Size20 KG
Model Name/NumberRUFFERSEAL-MB
FeaturesReady to use, Solvent free and eco friendly
Is it AnticorrosiveYes
Country of OriginMade in India

RUFFERSEAL-MB is Single component cold applied Polymer modified elastomeric bitumen waterproof and protective coating for RCC structures.


  • Ready to use
  • Single component cold applied eco friendly flexible waterproof membrane
  • Solvent free and eco friendly
  • Easy to apply by brush / roller
  • Excellent impermeability
  • Good crack bridging property
  • Prevents the growth of fungus, algae etc
  • Corrosion resistant
  • Non sagging on vertical surface
  • Protects the surface against chloride and sulphate ions as well as dilute acid and alkali



  • Waterproofing the industrial AC sheet / GI sheet roof
  • Slopping terrace, Basement slab, Retaining wall / Garden terrace, Planter
  • Refurbishing of APP membrane or Tarfelt
  • Damp proofing of structures like concrete, columns and beams
  • Protecting coating on brick foundation, retaining walls, concrete, timber, metal etc


Acrylic Polymer Waterproofing Coating

₹ 230 /Kg Get Latest Price

Packaging Size10 L
Available ColourGrey
Packaging TypeDrum
Paint Base TypeWater Based
Country of OriginMade in India

We deal in Waterproof coating.Contech Chemicals - An outstanding entity in the field of manufacturers and suppliers of high chemicals! With a very strong metamorphosis and customer oriented attitude, the quality construction company has grown manifolds and has become synonymous with quality and trust today.

Waterproof Elastomeric Coatings

₹ 230 /Kg Get Latest Price

Packaging SizeCustomized
Country of OriginMade in India

We deal in Elastomeric Coatings. We are one of the best supplier of our area.                                                                                                                                  

Rufcoat- Flexi Acrylic Coatings

₹ 230 /Kg Get Latest Price

BrandContech Chemicals
Usage/ApplicationWaterproofing Liquid Coating
Packaging Size5 kg and 20 kg
Physical StateLiquid

Rufcoat Flexi is a ready to use single component Acrylic based polymer waterproof coating applied either by brush / spray /roller having significant resistant to cracking, chalking, and peeling properties. Rufcoat Flexi is Non toxic, Breathable and Environment friendly product.

Application Areas

  • Used for waterproofing the roof having china mosaic / PCC /
  • tiled / bitumen treated surface, Exterior wall, GI / AC sheet roof & all other exposed concrete surfaces.

  • As an anti-carbonation coating, it is used in car park deck, underpasses, concrete bridge deck and all other concrete structures which are exposed to carbon-di-oxide and water

Dampseal: Silicone Water Repellent Coating

₹ 350 /Kg Get Latest Price

Packaging Size25 L
Packaging TypePlastic Drum
Forms of SiliconeSilicon Coating
BrandContech Chemicals
GradeDampseal: Water based silicon coating ; Dampseal-S: Sovent Base; Dampseal-OS : Oil Repellant Coating
Country of OriginMade in India

Dampseal Silicone Water Repellent is colorless silane-siloxane silicon-based water repellent coating for exterior walls plastered, exposed bricks, RCC/Stone facial, Old Heritage lime-finished Structure. It allows the masonry to breathe. Available in water & solvent based grade.

Few Highlights:

  • One application does the job.
  • Invisible – preserve the natural beauty of masonry.
  • Sheds soot, grime, dirt & water.
  • Penetrates deep into masonry.
  • Becomes part of the surface, not just a surface coating.
  • Allows masonry to breathe.
  • Impervious to oxidation.
  • Saves interior decoration by eliminating wet walls.
  • Easy to apply.
  • Inexpensive – long lasting.
  • High Alkaline Resistance


Contact Us

Hetal Vohra (Proprietor)
Contech Chemicals LLP
T.f. 308,309, Onyx-2 Complex, Nr.paldi Char Rasta, Jalaram Mandir Road/Paldi
Ahmedabad - 380007, Gujarat, India

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