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Product Data Sheet

InstaProof HA80

Two part, Polyurea Hybrid Waterproofing and Protective Coating System


Duram InstaProof HA80 is a two component,100% solids (solvent free), spray applied, elastomeric, hybrid polyurea waterproofing membrane and protective coating.

Duram Instaproof HA80 cures, within seconds to provide a tough, high tensile strength, abrasion and corrossion resistant, seamless membrane and protective coating.


Duram InstaProof HA80 is suitable as a:

• Waterproofing membrane over most construction substrates.
• Abrasion resistant protective coating.
• Corrosion resistant protective coating.
• Chemical resistant coating.
• Protective coating in marine environments.
• Protective liner for landfill and waste materials
• Wear resistant coating / liner for mining operation.
• Protective truck, horse float, ute liner.
• Trafficable membrane for vehicle parking decks and bridges.
• Protective liner for cargo holds and boat liner.
• Sewerage tank liner.

Suitable Surfaces

Duram InstaProof HA80 is suitable for use over suitably primed and prepared:
• Concrete and cementitious surfaces
• Timber
• Steel, aluminium, galvanised metal.
• Fibreglass resin coating

Additional Uses

Duram InstaProof HA80 is an excellent waterproofing, abrasion resistant, chemical reistant, trafficable protective coating and therefore has numerous applications on to numerous substrates.

In all cases, an adhesion test is recommended prior to application.


The information contained in this product data sheet is typical but does not constitute a full specification as conditions and specific requirements may vary from project to project. The instructions should be considered as a minimum requirement but the applicator or contractor must use their skill, knowledge and experience to carry out additional works as may be necessary to meet the requirements of the project. Specification for specific projects should be sought from the Company in writing.


• As InstaProof HA80 is a dual component, fast setting, spray appllied polyurea membrane coating, requiring appropriate skills in machine set-up, machine functionaility and spraying techniques and  it should only be used and applied by an experienced applicator.

• Do not apply if material and substrate temperatures are below 25ºC or 2ºC respectively or if the substrate temperature is greater than 50ºC. 

UV Resistance: Due to its aromatic composition, the product will discolour and yellow when subject to exposure to UV light. It is recomemnded to top coat the product with an aliphatic polyurethane top coat or other suitable coating which should be done with 6 hours of applying InstaProof HA80. 

• Structural movement and crack development must be below the tolerances of the membrane coating or rupture may occur.

Benefits and Advantages

Duram InstaProof HA80 is:
• Fast curing.
• 100% solids (solvent free)
• Flexible - Elongation ± 350%
• High Tensile strength
• Tough
• Seamless
• Abrasion, impact and tear resistant
• Good chemical resistance.
• Single coat application
• Rain resistant within 2 minutes.
• No VOC's

Precautions in Use

Do not spray in confined areas.
Wear suitable breathing respirators.
Gloves, boots and safety goggles or glasses should be worn. 

Mask off areas that are not to be coated.
Be weary of wind conditions to avoid over-spray.
Do not dilute the material. Viscosity can be controlled by the temperature of the material.
Regularly check the machine and equipment particulary the filters for build up of material.

Do not open until ready for use.

Priming and Surface Preparation

Good preparation is essential. Surfaces must be sound, stable, dry, clean and free of dust, loose, flaking, friable material and substances that may diminish adhesion.


All surfaces must be properly and suitably prepared. Problems are mainly attributable to poor surface preparation. Polyurea coatings rely on the soundness and structural entegrity of the substrate to which they are applied.
Substrates vary from project to project and may have differing  porosity, strength, tensile strength, movement, moisture content and water vapour transmissions. Therefore, preparation requirements may likewise vary and information should be sought from the Company.
All surfaces must be clean, dry, sound and free of dirt, dust, lose material, oil, grease, wax, contaminants, laitance, efflorescence, rust, salts and adhesion detracting substances.

Detailing Preparation

• Concrete must be cured for at least 28 days.
• Surface defects such as spalling, concrete cancer, cracks must be suitably corrected. 
• Concrete surfaces must have a reasonable degree of porosity and  surface profile to allow adhesion.
• Shiny, mirror finish or helicopter finished concrete must be suitably abraded by grinding or shot blasting.
• Prime with one or two coats of Duram Primeseal SP as per the product data sheet. Where water vapour transmission is expected apply two coats of Duarm Primeseal SP as per the product data sheet. Apply InstaProof HA80 as soon as the primer is cured and best within 2 hours but must be within 6 hours.
• The product has good tolerance to application in high humidity conditions. However, if applied directly to moist surfaces some surface blistering may occur.

Where Appropriate or necessary:
• Comply with Concrete Surface Preparation ICRI 03732
• Standard for Cleaning Concrete: ASTM D4258.
• Standard for Abrading Concrete: ASTM D4259.
• Comply with Standard for Etching Concrete: D4260.
• Comply with Standard for Measuring Moisture Vapour Emissions: ASTM F1869

For metals, timber, aluminium, galvinised surfaces contact the Company.

Product Preparation Before Use
Thoroughly stir parts A  and B seperately using a clean and dry mechinal stirrer taking care Not to cross-contaminate the products, then ideally every four hours.


Duram InstaProof HA80 is formulated for application through a heated, plural component, high pressure airless spray machine. 

The A & B Components should be at 25ºC to 30ºC.

Recommended Machine Parameters
Primary and hose heaters: 55ºC to 60ºC.
Spray Pressue at nozzle:  Minimum of 2000 psi.
Suitable spray machines include Gusmer H-3500 or Graco Topcoater using a Gusmer GX7-400 spray gun with a 452 or 453 module. A Probler gun with 00 or 01 round pattern mix chamber of flat spray tip gretaer than 0.043" is suitable. For further information regarding the equipment contact the Company.
Transfer pumps of at least 2:1 ratio are required to prevent cavitation of the proportioning pumps.

Mix Ratio
Parts A:B    1:1 (v/v)

Spray in a single coat using a 50% overlap to ensure that the coating is evenly applied over the surface at 0.5mm to 0.7mm per pass. The product can be sprayed in multiple passes to any desired thickness. Spraying should be continuous and avoid triggereing the gun. The applicator should be aware of even small changes in pressure as this may effect the product and if so, spraying should be suspended and the machine and other factors checked before continuing. Check filters regularly for material build up.

Dry Film Thickness (Minimum)
Waterproofing membrane:    1.5mm
Abrasion, chemical or protective resistant coating:    2mm to 4mm 
The guidelines are subject to membrane or coating performance and function requirements, project requirements and conditions of substrates and usages must be increased accordingly.  Usage should be project specific and confirmation should be sought from the Company.

Application Temperatures
Material  (minimum)      25ºC       
Substrate (minimum)    2ºC         Maximum 50ºC

Recoating of Older Coatings
Clean with high pressure water spray, Allow to dry.
Remove contaminates.
Abrade surface by lightly grinding to remove top film and oxidised material.
Re-apply the product.


The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique.


The coating can be build up to any thickness, provided it is done in a single, continuous application in a sweeping overlapping technique.

Theorectical Coverage
1mm of thickness requires 1 liter applied to 1m².

Minimum Usage and Dry Film Thicknesses
As a waterproofing membrane:1.5 litres per 1m² (1.5mm thick)
As a chemical or corrosion resistant coating: 2 litres to 3 litres per 1m² (2mm to 3mm thick).
As an abrasive resistant coating: 3 litres to 4 litres per 1m² (3mm  to 4mm thick).


Natural: Cream colour

Tinting: The product can be tinted to a variety of colours. For UV and colour resistance deeper colours are recommended.

Drying and Curing

Drying and curing of the product is affected by type, dryness and porosity of the surface, temperature, humidity, ventilation, climate conditions and application technique and therefore drying and curing can only be given as a guide.


Tack free:                 5 to 10 seconds of spraying.
Full Cure:                  24 hours
Rain resistant:          2 minutes
Foot Trafficable:       2 to 4 hours
Vehicle Trafficable:   24 hours to 48 hours

Note: The product attains its full properties, strength and resiliaence over a 7 day period. It is recommended to allow the product this period before being subjected to heavy traffic.


Store in dry, cool, ventilated area away from direct sunlight.
Storage Life: 6 months at recommended temperatures of 20ºC to 25ºC and minmum of 10ºC. Temperatures below 10ºC may result in cystallisation of the product requiring the product to be pre-heated before use. Protect from frost. 
Rotate drums periodically if stored for long periods.
If crystallisation occurs then contact the Company for melting instructions.

Clean Up

The product cures very fast and is chemical and abrasion resistant making the clean up of spills very difficult requiring surface grinding.
Protect, cover or mask off areas that are not to be coated. Protect unwanted areas from application and over-spray.
Drums should be placed on plastic sheets so as to avoid product from contacting the substrate. 
Wet spills of umixed product, should also be avoided, but should be able to be wiped with cloth and Duram solvent.

Tiling, Topping or Top Coating

Exposed Areas:
The cured membrane / coating should be protected from exposure to sunlight and uv by overcoating it with an aliphatic top coat (Multithane ATC A80) which must be applied as soon after the product has been applied but must be within 6 hours.

Not usually directly tiled but can be landscaped.

Safety & Precautions

When spraying or using InstaProof HA80, observe usual good industrial safety standards and hygiene.
The following safety equipment should be worn: Appropriate gloves, safety glasses, respirator, D-grade protection suit and boots.
Avoid breathing in mist.
Although the product does not contain volatile or flammable solvents , keep all sources of ignition away from uncured product.


For full safety data refer to the products Material Safety Data Sheet. Observe precautions as per label.

Tests and Technical Data

Hardness Shore A:    ± 85 (± 45 D)                               
Elongation:                ± 350%
Tensile Strength        12 MPa     ASTM D 412-92   
Tear Strength:          44 N/mm   ATM D 624-86     
Abrasion resistance:  175mg     H18 whee, 1000g, 1000 revsl    


Issued: 1st January 2013 | Valid to: 30th June 2020

Conditions of Use and Disclaimer

The information contained in this Material Data Sheet is given in good faith based upon our current knowledge and does not imply warranty, express or implied. The information is provided and the product is sold on the basis that the product is used for its intended purpose and is used in a proper workmanlike manner in accordance with the instructions of the Product Data Sheet in suitable and safe working conditions. Under no circumstances will the Company be liable for loss, consequential or otherwise, arising from the use of the product.


DURAM PTY LTD ABN 50 612 836 718
The Ultimate in Waterproofing & Protective Coating Technology

Duram Offices:
NEW SOUTH WALES: 51 Prince William Drive, Seven Hills, NSW 2147

 Tel (02) 9624 4077  Fax: (02) 9624 4079

QUEENSLAND: Unit 4, 29 Collinsvale St Rocklea, QLD 4106

Tel (07) 3255 6478  Fax: (07) 3255 6258