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
• Limitations
• Product Data
• Surface Preparation
• Application

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

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