GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating
    • GacoPro Roof Coating

    GacoPro Roof Coating

    GRGPS28-1

    We no longer stock this product, but can recommend Cromar Hydrosil Silicone Roof Coating as a great alternative.

    Please note: it is important to check that any alternative product is suitable for your requirements, as our suggestion is given in good faith but without warranty. If you are in any doubt please first contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to discuss your project.

    GacoPro Roof Coating is a single component elastomeric air-dry 100% silicone roof coating that can be applied year-round on properly prepared substrates.

    • Designed as a protective coating to seal and repair existing roofs, protect against leaks, and the damaging effects of severe weather
    • Permanently withstands ponding water and exposure to ultra-violet radiation (UV)
    • Excellent adhesion to metal roofs, concrete, and aged single ply membranes
    • Excellent solvent and chemical resistance
    • Excellent durability, colour stability and chalking resistance
    • Suitable for use on Flat Roofs less than 1:12 Pitch (5°) and Pitched Roofs greater than 1:12 Pitch (5°)

    £0.00(ex. VAT)
    £0.00 (inc. VAT)
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    This Product has been Discontinued

    Description

    GacoPro Roof Coating is designed as a protective coating to seal and repair existing roofs, protect against leaks, and the damaging effects of severe weather. GacoPro permanently withstands ponding water and exposure to ultra-violet radiation (UV).

    GacoPro meets the requirements of ASTM D 6694. This product is list by Underwriters Laboratory Available in SCAQMD compliant versions.



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    Features & Benefits


    • Excellent adhesion to metal roofs, aged asphaltic roofs, concrete, and aged single ply membranes
    • Excellent solvent and chemical resistance
    • Will adhere to most surfaces without a primer
    • Excellent durability, colour stability and chalking resistance
    • Suitable for use on Flat Roofs less than 1:12 Pitch (5°) and Pitched Roofs greater than 1:12 Pitch (5°)



    Limitations


    • Not for use on roofs comprised of individual asphalt shingles. Multiple coats are required to create a seamless membrane
    • An adhesion test is recommended to ensure adequate adhesion
    • NOTE: DO NOT WASH ASPHALTIC ROOFS
    • NOTE: FOR AGED ASPHALTIC ROOFS, LIGHT GREY IS NOT SUITABLE FOR USE
      • Colour variants will lead to blistering and failure of the waterproofing membrane and is not warrantable though any warranty offering(s) of Gaco. Only White is suitable for this use

    Please contact Rawlins Paints' Technical Support Team on 0113 2455450 or [email protected] for more information.



    Product Data


    PropertyDescription
    ADHESION
    • Excellent adhesion to metal roofs, aged asphaltic roofs (see Limitations above), concrete, and aged single ply membranes
    • An anti-corrosive metal primer may be used on ferrous metal roofs to help prevent corrosion from spreading
    CHEMICAL RESISTANCEExcellent solvent and chemical resistance
    COVERAGE
    • Applying 1 gal / 100 ft² (3.8 L / 9.3 m²) yields approximately 11 mils Dry Film Thickness (DFT) on smooth surfaces
    • Coverage rate is decrease on textured surfaces and more product will be used on the first coat versus additional coats
    • Heavily textured surfaces may require 3-4 coats to achieve a final 22 mil Dry Film Thickness (DFT) build
    SOLIDS
    • Weight: 80% - Method 4041
    • Volume: 69% - Fed. Std. 141
    STORAGE STABILITYThree years from date of manufacture when stored in unopened containers
    between 40 °F – 85 °F (4.5 °C – 29.5 °C)
    TOXICITYNot for use in contact with edible substances or potable water
    V.O.C.≤ 240 g/L (SCAQMD compliant version is 32.2 g / L)
    WEATHERABILITYExcellent durability, colour stability and chalking resistance



    Surface Preparation


    Thinning

    • Product should not be thinned

     

    Mixing

    • Mix before application to assure uniform colour and consistency
    • Power mixing is recommended
    • Do not use a paint shaker to mix

     

    Pot Life

    • Once a container of GacoPro is opened, the curing process has started
    • Use the entire product on your project if possible
    • Allow any remaining product in the container to solidify and dispose of in accordance with all waste disposal requirements applicable in your region

     

    Surface Preparation

    • It is extremely important to get the roof clean and dry
    • First remove heavy deposits of dirt, leaves and other debris from the roof using broom or air broom, then inspect the entire roof surface and flashings for any open seams, tears, cuts, etc.
    • Repair these flaws so water is not blown in under membrane during the cleaning process
    • Pressure wash roof with water and allow to dry completely
    • For general cleaning, apply a suitable Concentrated Cleaner according to label instructions
    • On all single-ply membrane roofs, after application of cleaner, power scrub the roof surface until clean and then power wash to remove debris and continue rinsing until all suds are gone
    • Biological Control:
      • Areas of algae, mildew or fungus on the roof membrane or the existing coating should be treated with a solution of 1 part household bleach and 3 parts water, followed by a power washer rinse using clear water
    • Drying:
      • After cleaning and rinsing the roof, ensure no dirt or debris is present
      • Allow surfaces to thoroughly dry to prevent blistering
      • Examine roof, paying particular attention to areas of physical damage to determine that residual water has fully dried before applying coating
      • NOTE: Drying time depends on weather conditions such as temperature, humidity and air movement

     

    Priming

    • GacoPro will adhere to most surfaces without a primer. However, some substrates may require a primer for optimal adhesion
    • An adhesion test is recommended to ensure adequate adhesion
    • If the test reflects poor adhesion, prime all surfaces with a suitable primer*
    • On aged asphalt surfaces (Please note: Light Grey is not suitable for this application), apply a suitable 'bleed trap' Base Coat* to help prevent bleed-through of asphaltic oils into the finished coating. When a primer is necessary, apply the 'bleed trap' Base Coat prior to primer application (EXCLUDING GRAVEL-SURFACED BUR MEMBRANES)

    *Please contact Rawlins Paints' Technical Support Team on 0113 2455450 or [email protected] for more information

     



    Application


    • Do not apply in temperatures below freezing, above 120 °F (49 °C) or if rain is expected within 2 hours
    • Do not walk on GacoPro other than for periodic maintenance
    • A minimum of 2 coats are required
    • A minimum Dry Film Thickness (DFT) of 22 mils must be achieved
    • Ensure complete coverage during application
    • Mix prior to application to ensure uniform colour and consistency

     

    Flat Roofs less than 1:12 Pitch (5°)

    • Use a solvent-resistant 0.75 in (19 mm) or 1 in (25 mm) nap roller cover and depending on type of roof, dip roller directly into pail and apply, or pour product onto flat roof surface and roll out evenly
    • For very smooth surfaces, pour out product and spread with an 0.125 in (3 mm) notched squeegee then immediately back roll for a smooth, even finish

     

    Pitched Roofs greater than 1:12 Pitch (5°)

    • Follow all safety guidelines to avoid injury
    • Use a solvent-resistant 0.75 in (19 mm) or 1 in (25 mm) nap roller cover, dip roller directly into pail, and apply
    • A roof pitch greater than 4:12 (19°) is not considered walkable; additional reach equipment may be needed to properly apply the product safely and effectively
    • Allow the first coat to dry for 3-12 hours
    • Apply second coat as soon as the first coat can be safely walked on
    • The coverage rate of GacoPro is 100 ft² / gal (9.3 m² / 3.8 L) in each coat on a smooth surface; coverage rate may decrease on textured surfaces, and more coating will likely be used on first coat than on additional coats
    • Smooth roofs can be completed in 2 coats, lightly textured surfaces often 3 coats, and heavily textured surfaces may require 4 coats to achieve a minimum Dry Film Thickness (DFT) of 22 mils

     

    Clean Up 

    • Application tools and equipment can be cleaned with a suitable silicone solvent* or 100% Pure Mineral Spirits
    • DO NOT USE WATER OR RECLAIMED SOLVENTS
    • NOTE: Once a container of GacoPro is opened, the curing process has started. Use the entire product on your project if possible. Allow any remaining product in the container to solidify and dispose of in accordance with all waste disposal requirements applicable in your region

     

    Maintenance

    • Roof structures may settle over time
    • A periodic inspection of your roof, which includes transition areas, flashing, vents and skylights, is recommended
    • Keep drains cleared at all times
    • Roofs become slippery when wet
    • Use extreme caution
    • Do not recoat GacoPro with acrylic, urethane or Hypalon coatings
    • Recoat cleaned GacoPro only with more GacoPro

     



    Product Details
    GRGPS28-1

    Data sheet

    Manufacturer
    Gaco
    For Use By
    Industrial Use
    Interior / Exterior Use
    Exterior
    For Use On
    Metal, Concrete
    Application Method
    Roller, Squeegee
    Colour
    Standard / Ready Mixed
    Single, Two or Three Pack
    Single
    Coverage
    2.44m² per litre/per coat
    Tensile Strength
    300 psi (2 MPa)
    Solids by Volume
    69%
    VOC
    ≤240 g/L
    Shelf Life (from date of manufacture)
    Three years from date of manufacture when stored in unopened containers between 40°-85°F (4°-29°C)
    Touch Dry
    3-12 hours
    UN Number
    UN1268
    Resistance to chemicals
    Excellent chemical resistance
    Suitable For Use On
    Metal Roofs
    Suitable For Use On
    Concrete Roofs
    Suitable For Use On
    Flat Roofs
    Suitable For Use On
    Roof
    Application Method
    Squeegee
    Application Method
    Roller
    Manufacturer
    Gaco
    Usages
    Pitched Roofs
    Usages
    Flat Roof Paints
    Usages
    Flat Roofs
    Usages
    Roofs
    Product Type
    Roof Coating
    Fastest Delivery
    Next Working Day
    Attachments
    Download


    Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


    questions Fred on 2023-04-11 13:28:35
    Question: 

    Hi i have a very large asphalt roof .I would like to use GacoPro Sillicone Roof paint in white for solar protection ,is this available ! Thanks Fred

    Answer from Rawlins’ Technical Team: 

    Unfortunately this product is temporarily unavailable at this time, we can offer the Cromar Hydrosil Silicone Roof Coating as an alternative silicone based roof coating but this is only available in grey.

    questions geoff overington on 2021-10-20 11:37:58
    Question: 

    hi i want to use this product GacoPro Roof Coating on a metal corrugated roof 5 metres x 5 metres ? will this product seal the overlaps be able to cover flash band and cope with expansion and shrinkage of the metal , would one coat be sufficient many thanks

    Answer from Rawlins’ Technical Team: 

    Assuming the metal roof is bare metal, it is clean, dry, sound and prepared as detailed in the technical data sheet and primed with GacoFlex E5320 2-Part Epoxy Primer/Filler it can be used.

    Overlaps could be sealed with Gaco Liquid Roof Tape prior to application, then two coats of GacoPro Roof Coating should be applied.

    this is solar reflective so should aid with reducing thermal contraction and expansion, it is also remains flexible in varying temperatures.

    questions John Taylor on 2021-05-11 16:39:28
    Question: 

    I Have a felt roof which is painted over with reflecting paint. would this Gaco Pro paint cover this surface .the area is 150 sq feet how much do I require to cover this area. Thanks

    Answer from Rawlins’ Technical Team: 

    This paint can be applied directly to many substrates and existing roof coatings, we would recommend testing for compatibility and adhesion prior to full applicaton on the painted roof.

    Assuming this goes well, the roof is clean, dry. sound and prepared as detailed in the technical data sheet this could be used.

    For 2 coats of 150ft² you will require approximately 11.5ltr.

    questions Paul S on 2021-03-09 18:35:31
    Question: 

    Are seagulls likely to damage the painted surface on a flat roof? We live by the sea and seagulls are often on the roof.

    Answer from Rawlins’ Technical Team: 

    Assuming the coating is applied correctly as detailed in the Technical Data Sheet seagulls walking on the roof should be fine.

    questions Jon-Luke kirton on 2019-12-02 12:28:02
    Question: 

    Will this product adhere to silicone six flex sealant?

    Answer from Rawlins’ Technical Team: 

    We're not familiar with 'six flex' but GacoPro Roof Coating does adhere and can be applied over general silicone sealants.

    questions Neil on 2019-10-09 07:40:43
    Question: 

    Hi I need to address blowback under tiles for a shallow pitch shed roof. Considering stripping back the tiles and forming a draining 'box' section under the roof from additional vertical battens and drainage gaps in horizontal battens and then covering roof and battens with Gaco before reinstating tiles giving a waterproof under roof as well. Will Gaco go over the underlying roof (strand board or ply) with batten to roof seams sealed with roof tape successfully? Any primer needed and would liquid or fixed roof tape be needed?

    Answer from Rawlins’ Technical Team: 

    GacoPro Roof Coating can be applied to plywood directly but we recommend 3 coats are applied instead of the usual 2. 

    questions Michael Hope on 2019-09-22 07:39:24
    Question: 

    Can this product be used as a final coating to provide a flexible and waterproof coat to protect the chimney crown which is a fine concrete made from pea gravel/sand/cement ( or is another product recommended). Thanks.

    Answer from Rawlins’ Technical Team: 

    Yes this should be fine for this application assuming there are no high temperature considerations to take into account in this instance.

    questions terry robinson on 2019-07-13 02:24:42
    Question: 

    could you tell me how many litres of this product id need to cover q 150sqm flat roof

    Answer from Rawlins’ Technical Team: 

    You would require 123 litres to apply the required 2 coats to 150m².

    questions Andrew Hopper  on 2019-03-27 15:36:47
    Question: 

    Hi is this available in the uk and if so are there any stockists in or around maidstone Kent .I see from your write up this product is suitable for covering old grp flat roofs once the old flacking paint has been scrapped off and the roof cleaned, then the product should stick to the old surface with out the use of a primmer is that correct ? How much Gaco wash & pro roof coating would I need for 22m2 (2 coats I understand )

    Answer from Rawlins’ Technical Team: 

    This is available to purchase from ourselves either via our website or by phone on 0113 2455450. To apply the required 2 coats to 22m² you would need 21 litres of GacoPro Roof Coating. 1 x 3.8lt of GacoFlex GacoWash would be plenty for 22m² if required.

    questions Lorna on 2019-01-28 19:42:32
    Question: 

    Is the Gaco pro roof coating suitable for a corrugated asbestos garage roof?

    Answer from Rawlins’ Technical Team: 

    Yes, after cleaning (follow local guidelines), GacoPro Roof Coating can be applied directly to corrugated asbestos/fibre cement roof sheets.

    questions Rani on 2018-10-29 12:06:59
    Question: 

    Hi Which product can I use for cement flooring? Thanks

    Answer from Rawlins’ Technical Team: 

    GacoPro Roof Coating is a roof paint, you can see all our floor paints HERE.

    questions Ahmed Farooqui on 2018-10-29 11:42:25
    Question: 

    Hi I've had installed 3 layered felt on flat roof. Which product can I use to give the roof a longer life? Occasionally the roof will be walked on to clean first floor windows

    Answer from Rawlins’ Technical Team: 

    For occasional foot traffic we would recommend Britannia Aquashield Aggregated Coating.

    questions Roger Clay on 2018-08-30 12:53:14
    Question: 

    I am going to apply Gaco Pro Roof Coating to an old lead roof. Can you please advise the best preparation? Many thanks, Roger.

    Answer from Rawlins’ Technical Team: 

    Preparation advice can be found in the product data sheet available to download from the 'Download' section on the product page.

    questions Paul fallows on 2018-08-14 21:46:19
    Question: 

    Hi can this be walked on once cured?

    Answer from Rawlins’ Technical Team: 

    Roofs coated in GacoPro Roof Coating that require areas to be walked on should have GacoFlex SF2036 WalkPad applied.

    questions Paul on 2018-07-18 09:02:04
    Question: 

    Is this coating FAA, AB or Ac rated for use on roofs within 6m of the boundary?

    Answer from Rawlins’ Technical Team: 

    GacoPro Roof Coating is an American product and as such hasn't been tested to British Standards, however we can offer the Tor Elastaseal and Elastaseal Z systems which both have external fire exposure roof tests meeting "EXT. F.AA".

    questions Craig  on 2018-07-15 08:14:06
    Question: 

    What coverage will a can do thanks.

    Answer from Rawlins’ Technical Team: 

    Allowing for the 2 coats that should be applied a 3.8lt will cover 4m² and a 19lt will cover 20m².

    questions DAVID on 2018-06-12 21:24:12
    Question: 

    I have a fiberglass roof about 22 years old. Should I start thinking about replacing roof or should I paint it with solar reflective paint? Thanks Dave

    Answer from Rawlins’ Technical Team: 

    We can't advise on whether you need to replace your roof or not, you would need to refer to a local roofer for advice on that. However if the roof is found to be OK then GacoPro Roof Coating would be an excellent way of extending the life.

    questions James sails on 2018-02-17 20:49:02
    Question: 

    Hi, you state that the white can reflect 85% of the sun's rays but can you tell me what the grey will reflect. Thanks.

    Answer from Rawlins’ Technical Team: 

    We do not have any reflectivity factors for the grey, but the darker the colour, the more heat it will absorb which means that grey would be a lot better than black felt etc, but the white would ultimately be the most reflective.

    questions james on 2017-05-23 14:11:45
    Question: Can it be used:1)over existing aluminium painted bitumen roof 2) over Flag Roofix (single pack elastomeric acrylic based (non bitumastic) compound)cheers
    Answer from Rawlins’ Technical Team: 

    GacoPro Roof Coating is suitable for use over both scenarios you have explained after adequate preparation (clean & dry).

    questions David Hughes on 2017-03-15 09:49:13
    Question: Does it need more than one coat and how often do you recommend repainting
    Answer from Rawlins’ Technical Team: 

    In most instances 2 coats are all that is required and the life expectancy of the system is 20 years to first maintenance.

    See the product information supplied on our website and in the 'DATASHEETS' tab for this product.

    questions Tony west on 2016-01-20 18:17:53
    Question: 

    Does GacoPro Roof Coating adhere to lead and epdm?

    Answer from Rawlins’ Technical Team: 

    Yes, GacoPro Roof Coating can be applied directly to EPDM and Lead without the need of a primer after cleaning.

    questions dave pickup on 2015-08-23 09:51:37
    Question: 

    Can GacoPro Roof Coating be over painted?

    Answer from Rawlins’ Technical Team: 

    No, due to the silicone technology the product is based on it can only be over coated with further coats of GacoPro Roof Coating.

      

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    IMPORTANT SHIPPING & DELIVERY INFORMATION

    GacoPro Roof Coating is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

    Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

    Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

    All delivery costs below are excluding VAT


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