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Perma Elasto Shield PU – White



Confirms to ASTM C 836

Perma Elasto Shield PU – White is a single component, VOC-compliant, ready-to-use polyurethane based hybrid liquid waterproofing membrane that is applied with a brush or stiff roller. It cures by reaction with humidity, maintains its elasticity, suitable for applications to horizontal and vertical surfaces. Perma Elasto Shield PU – White waterproofs flat roofs, pitched roofs, parapet walls, metal roof decks, terraces, etc., and provides a seamless elastomeric flexible roofing membrane that stays watertight longer than conventional seamed roofs. It will not crack, crumble, or peel despite exposure to severe weather or total joint movement. It is designed for maximum flexibility and water resistance. Upon curing Perma Elasto Shield PU – White forms a tough and flexible membrane which is resistant to a wide range of temperatures, oxidation, radiation and ultra violet rays.


Ideal waterproofing system for all types of roofs, maintenance of existing roofs, masonry and concrete walls, bathrooms, basements, bridges, decks, metal surfaces etc.

Construction : Liquid elastomeric polyurethane
Tear Strength : 14 N/mm2
Tensile strength : >1.8 N/mm2
Elongation : 650%
Solid content : 80%
Adhesion on Concrete : 2.2N/ mm2
Low Temp. Flexibility : -35°C
Shore A Hardness : 60
Crack bridging : Passed 1/16” at 15°F (-9°C)
Permeability : 1.02 perms
Minimum Thickness : 1000 micron
Setting time : One day
Colour : White
Duration between coats : 4hours


  • Completely seamless roof and extremely flexible
  • Watertight, impact resistant , leak protection and corrosion control
  • Being white and highly reflective surface reduces rooftop and interior temperatures
  • Low VOC, non-toxic and environmentally compliant
  • Perma Elasto Shield PU – White is non toxic hence complies with green building product requirement.
  • Perma Elasto Shield PU – White is a highly elastic product and forms a rubber like membrane which is capable of withstanding severe expansion, contraction and deck movements.
  • Perma Elasto Shield PU– White when applied adapts to any irregular surface forming a waterproof blanket.


Surface Preparation:
Surface to be waterproofed shall be dry, clean, sound and free of all contaminants which may interfere with adhesion or proper curing. The substrates should not contain holes or cracks and should be dust-free. All shrinkage cracks shall be treated with suitable material. Moving structural cracks greater than 1/16” (1.6 mm) shall be routed out and caulked with approved PERMA material. Detailing like horizontal vertical junctures, projections, expansion joints and other areas of potential high movement may require reinforcement and sealants to fill. Consult with PERMA technical team for further information. All such repaired areas must be cured for a minimum period of 12 hours .

This rapid setting liquid is spread at the desired thickness onto the prepared surface. The coating is applied from the container using standard roofing brushes, squeegees or airless spray equipment at the recommended coverage rates on properly cleaned and prepared dry substrates. Application of Perma Elasto Shield PU – White system should be done in one complete step to create a smooth uniform self leveling surface without cold joints, lines or streaks. Apply the first coat at the rate of 500 micron thickness.Let it dry fully(approximately 4-6 hours between coats), then apply the second coat (500micron thickness) . Waiting time shortens in hot weather and lengthens in cold weather.

Do not mix with water and do not apply on moist surfaces. The surface to be applied should be free of moisture.


1.4kg of Perma Elasto Shield PU – White will cover an area of 1sq/mt. when applied in 2 coats at a thickness of 1000 microns.


Wear protective clothing, gloves and goggles.

Avoid repeated or prolonged contact, if contact occurs ,clean with hand cleaner that removes oil or grease , then clean with soap and water.

Contact could cause irritation. If contact occurs ,flush with clean water.

Can cause dizziness. Remove to fresh air and if breathing difficulty persist administer oxygen.


Perma Elasto Shield PU – White is available in 20 Kg Pack.


Store in cool, dry area. Product is not flammable. Do not allow to freeze.


12 months for the date of manufacture.


PERMA warrants that all products are free from any defects of manufacture and comply with the specifications given in their respective technical data sheet. No warranty can be given as to the results of use because conditions of use, such as site conditions, surface preparations, workmanship, weather, structural issues and other factors are beyond the control of PERMA. Purchaser agrees to seek the advice of qualified professionals to carry out tests & take trials to determine the suitability of products for their intended purpose prior to full scale usage of PERMA products and assumes all risks.

The company does not assume any liability for unsatisfactory results, arising from the use of our products. Purchaser’s sole liability is limited to replacement of product or refund of the purchase price paid if any product proven defective. No other warranties, express or implied, shall apply including any warranty of merchantability or fitness for a particular purpose.
PERMA shall not be liable for any consequential damages arising from the use of our products for unsatisfactory results.

The information supplied in this datasheet is based on our experience through extensive research and is given in good faith in order to help prospective users. We reserve the right to update the information provided in our technical data sheet at any time without prior notice within the scope of technical progress or new developments.

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