CX RAINSEAL 01 is a one part elastomeric coating based on UV curing acrylic dispersion. It has excellent flexibility, breathing properties, water resistance, crack bridging properties, weathering durability, and excellent resistance to growth of microbial organisms.

It is used as a waterproofing & protective coating for exterior walls of the buildings because it forms higher film thickness, has excellent flexibility, breathing properties, water resistance, crack-bridging ability, weathering durability and an excellent resistance to the growth of microorganisms.

Uses : 

As weatherproof protective and decorative coatings for exterior masonry, concrete, cement sand rendered all types of exterior walls, etc. Also can be used on all types of drywall surfaces like gypsum, cement fibre boards etc.

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Film thickness

Provides higher dry film thickness of 1 to 1.25 mm in three coat application


Application advantage

No need to remove existing sound brickbat coba, plaster, concrete surface



Higher tensile strength, tear resistance & bond strength with cementations substrates.



Resistant to UV & weather conditions


Ease of application

Can be applied by brush & roller easily



It is non-toxic in nature.


Easy to recoat

Easy to recoat existing surfaces coated earlier with CX RAINSEAL 01


Crack bridging

Bridges cracks up to 2 mm width



Can be used for flat as well as sloping roofs



Forms highly elastic & resilient coating so helps to withstand the structural movements


Abrasion resistant

No additional protective coating is required for roof subjected to foot traffic


Weight addition

Light in weight does not add extra weight over the roof



It is breathable.

Solid Content67% – 69%
Hardness (Shore A)(ASTM D 2240: 2002)80
Tensile Strength (ASTM D 412 : 2002)2.5 -2.7 N/mm2
Elongation at Break (ASTM D 412 : 2002)200%
UV Resistant (ASTM G 154 : 2000)Excellent- No thermal degradation
Weathering (1000 hours) No cracking, chalking and discoloration
Adhesion Strength(ASTM D 4541 : 2002)0.9 N/mm2
Water Vapour Transmission (ASTM E 96 : 2000) 19 g/m2 /day
Algae & Fungus Resistant (SS 345 : 1998) No algae & fungus Growth
Crack Bridging AST M C 836: 1995 a)No cracks up to 2 mm width
Rapid chloride permeability (ASTM C 1202 – 97)Very low
Water permeability (BS EN 12390, part 8 :2000) 5-7 (Depth of penetration at 5 bar pressure)
  • Preparation : Prepare the surface thoroughly by cleaning, washing and removing dust, dirt, oil, grease and loose particles.In existing old terraces with brickbat coba or screeds, the substrate must be checked for its soundness.Damaged or hollow portions, sharp edges, etc. must be cut and removed till the mother slab. The slab should be recoated with slurry of CHEMAX WATERSEAL WH and cement in 1:1 proportion. After drying, the brick bat coba in that portion should be reinstated by mixing CHEMAX WATERSEAL WH in the base slurry as well as while doing the top coba. In other areas, where the coba is sound, the surface cracks must be filled with polymermodified mortar in case cracks are wider than 5 mm. Cracks less than 2 mm, should be cleaned free of dust with a vacuum cleaner. Apply CHEMAX SBR LATEX 44 in the crack and let it dry. Then pour CX RAINSEAL 01 into these cracks and wait for it to dry.
    Ensure that the roof slope of a minimum of 1 in 100, is already provided. Bitumen based waterproofing treatments if existing, must be completely removed by mechanical scarification or by any other effective mechanical means.
  • Application : Dilute 2 parts of CHEMAX SBR LATEX 44 with 1 one part of water. This dilution will cover 7 to 8 Allow it to dry for 6 to 8 hrs. Apply the first coat of CX RAINSEAL 01 without any dilution at the rate of 2 m2 per liter and allow it to dry before taking up the second and third coats, the rate of application being the same. In larger roofs, an open woven glass fiber mesh of 2.5 mm x 2.5 mm must be sandwiched between the first and second coat. While the 1st coat is still wet, place the fiber mesh on it. After the coat dries, start applying the 2nd coat of CX RAINSEAL 01. This improves the performance of the coating dramatically, to take care of all movements in cracks and cold joints in the substrate caused by variations of high and low temperatures. This reinforcement with fiber mesh shall be extended up to the drip mould over the angle fillets.
    Drying time between coats will be 6 to 8 hrs. Allow the system to air cure for 7 days minimum. A total thickness of 1 to 1.2 mm must be achieved when CX RAINSEAL 01 is dry.
  • MAINTENANCE & RECOATING OF CX RAINSEAL 01 : Over a period of time or some years, if CX RAINSEAL 01 has developed cracks on exposure to weathering or extreme temperature variations, it is extremely easy to recoat over it again, with only one coat of application of CX RAINSEAL 01. Cracks if any, can be treated by placing a fiber mesh over a recoat, while it is still wet. After this dries, it would need an additional coat over the mesh to strengthen the area. In rest of the area where there are no cracks or damage on the surface, you can just go in for only one coat of CX RAINSEAL 01, after properly sanding the surface
  • Packaging : 4 & 20 liter
  • coverage : 2-2.5 m2 per liter @ single coat.
  • Storage Shelf life :
    -Shelf life is 12 months from the date of manufacturing in unopened condition.
    -Store in a cool & dry place.
  • Health & Safety instructions :
    -Skin Contact: Wash skin with soap & water. Remove contaminated clothes.
    -On eye contact: Immediately splash eyes with plenty of water. Consult Physician if irritation persists.
    -Ingestion: Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a Physician.
    The product information & application details given by the company & its agents has been provided in good faith & meant to serve only as a general guideline during usage.
    Users are advised to carry out tests & take trials to ensure on the suitability of products meeting their requirement prior to full scale usage of our products.
    Since the correct identification of the problems, quality of other materials used and the on-site workmanship are factors beyond our control, there are no expressed or implied guarantee / warranty as to the results obtained.
    The company does not assume any liability or consequential damage for unsatisfactory results, arising from the use of our products.