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Elastoclad HR



Elastoclad HR is a 100% acrylic waterproofing and heat reflective coating which is formulated with hollow core ceramic microspheres to dissipate and reflect solar radiation and also provide a long lasting elastomeric waterproof coating. The ceramic coating technology was developed originally for NASA space shuttles during re-entry to the atmosphere, the benefits provided are therefore substantial.


Elastoclad HR used on metal roof decks, silos, storage tanks, cold storage facilities, metal wall surfaces, concrete roofs, walls and electrical equipment boxes. Suitable surfaces to apply to include concrete, metals, timber, asbestos cement and brickwork.

Advantages include:-

  • Deadens sound, resists hail damage, and is fungus resistant
  • Can be applied on most common building materials.
  • Resistant to chemicals and deterioration from hot weather conditions
  • Non yellowing, abrasion resistant UV stable waterproof coating
  • Reduces radiant heat transmission from external surfaces by up to 92%
  • Reduces dramatically surface temperatures with less stress due to substrate movement and hence longer roof life.
  • Safe and easy to use.
  • Produces equivalent radiation heat insulation of up to 150 mm of conventional fibreglass or styrofoam an R rating of 20 in terms of heat gain. Temperature in roof space may be reduced by 20% and result in a 30% decrease in load on an air conditioning system.
  • Protects metals from rust corrosion and concrete from carbonation.
  • Reduces required size of air conditioning plant in new building or reduces load by 30-40% in old buildings.
  • The cured waterproof membrane is elastomeric and can tolerate substrate movement without cracking or flaking.
  • Stabilises rusty steel halting rusting.
  • Reduces thermal shock and hence metal fatigue and increases the working life of the roof.

Thermal Conductivity Comparisons:

The K value of various common building materials is shown below which provides the heat transfer property or the thermal conductivity of the material. The higher the K value the faster heat is transferred through a particular material.

Material K Value
Copper 386.00
Aluminium 204.00
Steel 54.00
Concrete 1.00
Brick 0.70
Asbestos 0.17
Elastoclad HR 0.10


CONCRETE - Remove all debris and contaminants from the surface. Optimum preparation will be achieved by high pressure water blasting. Ensure the substrate is sound and carry out repairs using a polymer modified repair material Conpatch Conpatch from Cormix. Cormix Upstands, pipes, penetrations, roof fixing, joints etc. must be detailed and flashing used as appropriate. Ensure there is no moisture trapped in the concrete, if moisture is present dry or apply Contite Moisture Barrier at a Contite Moisture Barrier min. of 300 microns D.F.T. in 2 coats. Allow any repaired areas to cure before coating, prime the entire surface using Elastoclad Elastoclad Elastoclad Clear Sealer Primer before Clear Sealer Primer applying the Elastoclad HR.

METAL -Inspect metal surfaces for any signs of corrosion. Corroded areas must be thoroughly cleaned and mechanically prepared to remove all rust scale and surface contaminants. Apply suitable anti-corrosive metal primer to entire surface area and allow minimum 4 hours to cure e.g. Congard ST Congard ST before top coating. For metal sheets such as zincalume apply etching primer such as Elastoclad 160 Primer Elastoclad 160 Primer before coating.

Proper preparation of the roof deck is essential to the long term performance of any roofing system. Any concrete and metal roofs with existing asphalt, bituminous or water based coatings must be water jet power-washed or scraped to assure proper adhesion of the Elastoclad HR Waterproof Ceramic Coating System

Furthermore, metal roof areas subject to surface rust should be treated with Congard ST. Congard ST This will protect the long term integrity of the affected areas to prevent further rust deterioration. Metal roofs with loose and defective bolts, screws, and fastener heads must be tightened or replaced and sealed. All loose seams should be secured with additional fasteners or lap screws. Finally, any open seams which remain must be sealed with Conflex LM or Conflex LM reinforced with Elastoclad and Elastoclad Elastoclothe Elastoclothe polyester membrane fabric to ensure a strong and durable waterproofing seal protection over areas subject to thermal movement and shearing activity. Once all fasteners, seams and openings are properly sealed, the metal deck is watertight. The roof should now be coated using Elastoclad HR.


Elastoclad HR may Elastoclad HR be applied using a brush, roller or airless spray. In some circumstances, particularly if applying by airless spray equipment, the viscosity of Elastoclad HR may warrant Elastoclad HR the addition of 5-10% of water for improved spray viscosity. In accordance with conventional good coating practices, it is recommended Elastoclad HR be Elastoclad HR applied in 2 coats to avoid pin holing and other imperfections that may result due to surface variations


The optimal thicknesses are as follows applied in 2 coats. These will also provide long life in various atmospheric conditions


20 Litre plastic pails.

Surface Min. DFT
Metal Wall Cladding 300 micron
Metal Roof Deck 300 micron
Cement Wall Render 300 micron
Concrete Roof Deck 300 micron
Asbestos Roof 300 micron


Apply only between 5° - 40° C ambient. If temperatures exceed this range contact your technical sales representative. Elastoclad HR should be kept tightly sealed and stored in a cool dry place. HR Always wear protective clothing, gloves and goggles during use. Do not use in unventilated areas. Please refer to Material Safety Data Sheet for detailed safety precautions.



Certified by

ISO 9001 : 2000 Cert . No. 04100 2001 0136 Quality Management System Certified


Elastoclad HR coating provides measurable thermal resistance and energy saving by deflecting heat and cold and significantly reducing substrate thermal radiation penetration.

Elastoclad HR

is a successful hybrid of the highest quality acrylics and space age ceramics developed in response to the needs of Space Exploration programme.