Looking for Answers about Gardner Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating?

Customer questions and answers for
Gardner Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating

Sta-Kool 770 Ultra White Elastomeric Roof Coating is a tough, highly flexible, rubberized roof coating. This high-performance, 7-year warranted elastomeric roof coating resists cracking and peeling. The coating also provides a highly protective barrier which reflects the sun’s heat and destructive UV rays. This helps to cool roof surfaces and reduce interior temperatures. This product is an investment which can actually pay for itself in savings on cooling costs. Covers approx 50-75 sq. ft. per Gal. depending on porosity of the surface.
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Customer questions and answers for Gardner Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating

Question

Which product should I use on my RV?

Asked by
Smitty
Garden City, Kandsas
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
August 27, 2015
I have a rubberized roof on my motor home, which product should I use, also should I use a primer??
And also which caulk adheres best for this roof?
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answer 1
Asked by
GardnerGibson
August 28, 2015
Great questions Smitty. Those rubber roofs can be tricky to coat so we always recommend doing a peel test to verify surface adhesion. With that in mind, consider the Eterna-Kote Silicone products. S-1 is the roof sealant in a caulk tube, S-10 is the trowel-grade patch and S-100 is the roof coating. For more information about each of those products, you can view the Technical Data Sheet on the product page of our web site, www.gardner-gibson.com. All the best with your motor home roof project!
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Question

how fluid is this coating?

Asked by
borepstein
Somerville, MA
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
August 12, 2015
I have a flat roof covered with slightly cracked asphalt sheeting. So my question is, will this coating work to fill the cracks?
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3 answers
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answer 1
Asked by
CommunityAnswer
August 13, 2015
Yes, this product is compatible with flat roofing.
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answer 2
Asked by
GardnerGibson
August 14, 2015
The 770 Sta-Kool Coating product is designed to coat and protect the roof. If you have cracks, fill them in first with Sta-Kool 440 White Flash patching cement.
These are the proper steps to have years of trouble free experience with your roof.
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answer 3
Asked by
GardnerGibson
August 14, 2015
Thanks for your question borepstein. If you have incidental ponding water areas, consider Eterna-Kote S-100 silicone for those areas. Sta-Kool 770 can be applied with a roof brush which will help you coat into the fine cracks. Please visit our web site RESOURCES tab if you'd like to view some quick tips for applying your coating. www.gardner-gibson.com
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Question

Can this be used on a dark roof?

Asked by
branar
Southern Indiana
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
August 4, 2015
Can this product be used on a dark mobile home roof? It isn't currently white, but looking at this product for it.
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answer 1
Asked by
GardnerGibson
August 12, 2015
Thanks for your question branar. Sta-Kool can be applied to dark roof surfaces with the exception of EPDM, TPO, PVC or other rubber/synthetic surfaces. All the best with your project!
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Question

can this product be applied to a commercial PVC roof?

Asked by
Greg
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
July 26, 2015
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answer 1
Asked by
GardnerGibson
July 27, 2015
Thanks for your question Greg. We don't recommend this for a PVC roof.
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Question

Instead of painting over it. Could a dye be add to change the color?

Asked by
firefighterbve
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
July 23, 2015
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answer 1
Asked by
CommunityAnswer
July 24, 2015
This product should not be tinted.
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answer 2
Asked by
GardnerGibson
July 25, 2015
This product can be tinted with 3-4 ounces of tint per gallon. This will typically result in lighter colors. Custom colors can be done for orders over 250 gallons.
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Question

can I use this over self adhesive roof underlayment

Asked by
Bill
Florida
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
July 22, 2015
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answer 1
Asked by
GardnerGibson
July 24, 2015
Hi Bill. We wouldn't recommend coating the underlayment directly. Elastomeric coatings like Sta-Kool 770 are better suited for coating roof surfaces like cement tle (flat or barrel), metal roofs (aged galvanized), and aged roofs previously coated with asphalt, aluminum, or tar. Visit our web site www.gardner-gibson.com for more information about Sta-Kool 770 application as well as other tips and tools. You'll find a variety of information under the Resources tab. Thanks for your question!
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Question

can this product be color tinted?

Asked by
mikey
home west texas
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
July 22, 2015
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answer 1
Asked by
GardnerGibson
July 23, 2015
Mikey, Thanks for your question. A typical addition of 3-4 ounces per gallon of universal colorant can be added resulting in light pastel color. Please note that color tinting will disclaim warranty.
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Question

Without quoting the guidelines word for word, can this product be applied with a first thin coat and then normal coats.

Asked by
Bruce
Windsor, Calif
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
June 8, 2015
What happens when thin coats are used. Will this cause bubbling.
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2 answers
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answer 1
Asked by
CommunityAnswer
June 8, 2015
Yes, this product can be applied as a thin coat and then as regular coats.
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answer 2
Asked by
GardnerGibson
June 9, 2015
Bruce, Thin coats do not cause bubbling.
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Question

can this be used to coat RV rubber roof

Asked by
Ranger
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
June 8, 2015
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answer 1
Asked by
CommunityAnswer
June 8, 2015
Yes, this product will work on an RV.
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answer 2
Asked by
GardnerGibson
June 9, 2015
Thanks for your question Ranger. For applications on RV Rubber roofs, we would recommend our Eterna-Kote Silicone Coating. This product is more costly, but it is the only product that will adhere to that surface. You will also need to pressure wash the roof before applying the coating. For more product info you can our web site. www.gardner-gibson.com/products/cool-roof-coatings-repairs/white-silicone-roof-coating/eterna-kote-5570-1-30
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Question

On my mobilehome can St-Kool 770 be applied with multiple thin coats.

Asked by
Bruce
Windsor, Calif
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
June 7, 2015
My first coat was applied with a thin coat, can I now continue with thin coats or do I have to now apply normal thick coats. I'm using a 3/4" roller.
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answer 1
Asked by
GardnerGibson
June 8, 2015
Thanks for your question Bruce. We aim to apply two uniform coats, avoiding excessive rolling. Make sure to apply the second coat perpendicular to the first with at least 24 - 48 hours between coats.
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answer 2
Asked by
CommunityAnswer
June 8, 2015
This coating can be used for a mobile home roof.
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Question

will this work on a tin roof

Asked by
william
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
June 5, 2015
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answer 1
Asked by
CommunityAnswer
June 6, 2015
Yes, this product will work on a tin roof.
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answer 2
Asked by
GardnerGibson
June 8, 2015
Thanks for your question William. Yes Sta-Kool 770 can be applied to a tin roof.
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Question

can i use this on a stucco wall?

Asked by
hank
las vegas nevada
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
June 3, 2015
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answer 1
Asked by
GardnerGibson
June 4, 2015
Great question Hank! I can appreciate looking for new ways to get things done. At the same time, Sta-Kool is a designed as a roof coating so we can't recommend application on a stucco wall.
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answer 2
Asked by
CommunityAnswer
June 4, 2015
This product does not work with stucco.
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Question

Will it work on a Rubber Roof asthis is what my RV Roof is?

Asked by
karin
Austin texas
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
May 8, 2015
Your product says also Rubberized, so is it ok on a rubber Roof, or will it peel?
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answer 1
Asked by
GardnerGibson
May 8, 2015
For applications on RV Rubber roofs, the correct product to use would be our Eterna-Kote Silicone Coating. This product is more costly, but it is the only product that will adhere to that surface. You will also need to pressure wash the roof before applying the coating. For more product info you can go to this web page.... http://www.gardner-gibson.com/products/cool-roof-coatings-repairs/white-silicone-roof-coating/eterna-kote-5570-1-30
Thanks for your question.
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Question

can this be used on fiberglass flat roof on houseboat that doesn't move any where

Asked by
Patty
Middle river md
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
April 29, 2015
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answer 1
Asked by
GardnerGibson
April 29, 2015
Thanks for your question Patty. This product is not recommended for use on synthetic surfaces.
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Question

What is the difference between the 770 & 780 model?

Asked by
toolman
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
April 3, 2015
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answer 1
Asked by
GardnerGibson
April 6, 2015
Thanks for your question. Sta-Kool 780 expands and contracts up to 300% and offers a 10 year warranty while Sta-Kool 770 expands and contracts up to 250%, offering a 7 year warranty.
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Question

Will one 5gl tub be enough for a 30ft rv?

Asked by
gator
TX.
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
March 31, 2015
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answer 1
Asked by
GardnerGibson
March 31, 2015
Thanks for your question. The coverage rate for Sta-Kool 770 is approximately 50 – 75 sq. ft. per gallon per coat.
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Question

Does this roof coating come in any colors or can it be tinted?

Asked by
Grams
Parker, Arizona
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
March 30, 2015
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answer 1
Asked by
GardnerGibson
March 31, 2015
Yes, you can order tan or gray with a minimum order quantity of 250 gallons. You can get you local paint shop to tint it as well.
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Question

My R/V has a rubber roof. It is chalking and need to be recoated. Will Sta-Kool 770 work on a recoat

Asked by
KOFISH
Folsom,Ca
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
March 18, 2015
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answer 1
Asked by
GardnerGibson
March 19, 2015
Thanks for your question. St-Kool 770 is not manufactured for use on EPDM, TPO, PVC or other rubber/synthetic surfaces.
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Question

I havbe aflat roof on my porck .it was put up in 3section i beleave the are alum. some one put tar on the seams this has cracked what can i do?

Asked by
donnie
fl
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
February 20, 2015
I put flexable rubber fill but dint work
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answer 1
Asked by
GardnerGibson
February 21, 2015
If you have a leak, it must first be repaired with a patching repair and reinforcement. The Sta-Kool 440 White Flash, is a thick flexible white patch that will seal cracks and stop leaks. After it is repaired, you can apply the Sta-Kool 770 Cool Roof Coating. Thanks for the question, and good luck with the project. We would love to hear how it turns our too!
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Question

how do i get this in a gray tint

Asked by
kevin
croton,ny
about Sta-Kool 5 Gal. 770 Cool Roof Elastomeric Coating on
January 31, 2015
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answer 1
Asked by
GardnerGibson
February 3, 2015
Thanks for your question. A typical addition of 3-4 ounces per gallon of universal colorant can be added, which will result in light pastel colors. Please note that color tinting will disclaim warranty.
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