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5 Gal. Ultra Siliconizer 100% Acrylic Elastomeric Reflective Roof Coating (Silicone-modified)

  • Ultra white finish helps reflect sun's heat
  • Water and weather resistant seal on most surfaces
  • Keeps interiors cooler, helping reduce energy cost
  • See More Details

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Product Overview

Lanco Ultra Siliconizer is a 100% acrylic elastomeric roof sealer that has been silicone-modified to provide a thick high-performance water and weather resistant seal on most roof surfaces. It will significantly lower the interior temperature of the structure. Product will not crack, peel or blister, even under severe weather conditions.
  • Waterproof for immediate repelling of water
  • Reflects 78% of sun rays
  • Changes color for an easier application
  • Excellent mildew and algae-resistant film
  • Can be reinforced with polyester or fiberglass mesh
  • To use with membrane primer or without it
  • Low VOC volatile organic compounds (50 g/l)
  • Silicone-modified for increased strength and crack-resistance
  • Coverage: 50 sq. ft. (4.6 sq. m) per gallon (32 wet mils, 17.5 dry mils)
  • Click here to learn more about Eco Options and Energy Efficiency
  • California residents

Info & Guides

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BrandHenryLancoHenryHenry
Name4.75 Gal. Acrylic Reflective Elastomeric Roof Coating5 Gal. Ultra Siliconizer 100% Acrylic Elastomeric Reflective Roof Coating (Silicone-modified)5 Gal. Acrylic Reflective Elastomeric Roof Coating4.75 Gal. 887G Tropi-Cool 100% Silicone Gray Roof Coating
Price
Ratings
(358)
(267)
(216)
(93)
Coating BaseAluminumAcrylicAcrylicSilicone
Application MethodBrush On,Roll On,Spray OnBrush On,Roll On,Spray On,SqueegeeBrush On,Roll On,Spray OnBrush On,Roll On,Spray On
FeaturesCool Roof Certified,Corrosion Resistant,Energy Star Rated,Extreme Heat,High Reflectivity,Mildew Resistant,Rust ResistantAlgae Resistant,Energy Star Rated,High Reflectivity,High Wind Resistant,Mildew Resistant,Paintable,Water Resistant,WaterproofCool Roof Certified,Corrosion Resistant,Energy Star Rated,Extreme Heat,High Reflectivity,Mildew Resistant,Rust ResistantAlgae Resistant,Extreme Cold & Ice,Extreme Heat,High Impact/Hail Resistant,High Wind Resistant,Impact Resistant,Mildew Resistant,Quick Dry,Waterproof
Approximate Coverage Per Gallon (sq. ft)1005010067
Surface RecommendedCoated Roofs,Metal,Metal Roofs,Rubberrized-Asphalt,Rubberrized-MasticCoated Roofs,Concrete Roofs,Concrete/Masonry,Metal,Metal Roofs,Mobile Home Roof,PVC Membrane,Rubberrized-Asphalt,Rubberrized-Mastic,Rv Roof,Trailer Roof,WoodCoated Roofs,Metal,Metal Roofs,Rubberrized-Asphalt,Rubberrized-MasticCoated Roofs,Concrete Roofs,Concrete/Masonry,Metal,Metal Roofs,Mobile Home Roof,PVC Membrane,Rubberrized-Asphalt,Rubberrized-Mastic,Rv Roof,TPO Membrane,Trailer Roof
Fire Rating (UL 790)No Rating AvailableNo Rating AvailableNo Rating AvailableNo Rating Available
Roofing Product TypeReflective Roof CoatingReflective Roof CoatingReflective Roof CoatingAsphalt Roof Coating
Material Construction Polymeric
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
12
Product Height (in.)
12.75
Product Size (oz.)
640
Product Width (in.)
12

Details

Application Method
Brush On,Roll On,Spray On,Squeegee
Approximate Coverage Per Gallon (sq. ft)
50
Coating Base
Acrylic
Cold Applied
Cold Applied
Features
Algae Resistant,Energy Star Rated,High Reflectivity,High Wind Resistant,Mildew Resistant,Paintable,Water Resistant,Waterproof
Fire Rating (UL 790)
No Rating Available
Number per Package
1
Package size (gallons)
5
Reflectivity Rating (%)
78
Returnable
90-Day
Roofing Product Type
Reflective Roof Coating
Surface Recommended
Coated Roofs,Concrete Roofs,Concrete/Masonry,Metal,Metal Roofs,Mobile Home Roof,PVC Membrane,Rubberrized-Asphalt,Rubberrized-Mastic,Rv Roof,Trailer Roof,Wood

Warranty / Certifications

Manufacturer Warranty
Lanco warrants only that this product is free of defects, since many factors which affects the results obtained from this product (such as weather, workmanship, equipment used and prior conditions of substrate) are beyond our control. We will replace at no charge any product proven to be defective within 15 years of purchase, provided it has been applied per manufacturer’s specifications.

Questions & Answers

210Questions14Answers

I have this on my roof but already crack should i use this over Emulsion with polymesh?

Asked by Ka May 13, 2021
1
Answer

Hi Ka, clean the surface and make sure is out of dirt, grease, oil or any debris; then re-coat the surface to correct the imperfections a let it dry for 24 before expose it to the rain.

How long does it take to dry? And I have a 1000 ft asphalt flat roof what would be the best b pr...

Asked by Matt May 1, 2021
1
Answer

Hi Matt, for your asphalt flat roof I would recommend the Lanco Ultra Siliconizer. We highly suggest waiting 24 hours in between applications. When necessary you can prime the entire roof surface with Acrylic Primer Sealer AS-210 at a rate of 250 sq./ft.gal. as this product is specially formulated to penetrate and seal internal cracks and porous surfaces. Then you need to apply two perpendicular coats of the Ultra Siliconizer (recommended product for the asphalt roof), at a rate of 50 sq./ft. per gallon.

For those who has sprayed this (I know it can be sprayed but most of you have used a roll but the...

Asked by sox2014 April 30, 2021
1
Answer

Hi sox2014, the brand that you can use is GRACO, just make sure it is not electric but gas. The most important thing is that the machine needs a pump with 1500-2000 psi on a pump also 1-2 gallon delivered per minute.

I have a gable metal roof and would like to use the coating just for heat deflection. spraying se...

Asked by sox2014 April 16, 2021
2
Answers

I wouldn't know about spraying in on, it's very thick, almost a gel.I rolled mine on by dumping and spreading it with the roller.

What percentage of the product is silicone?

Asked by Ted April 10, 2021
1
Answer

Hi Ted, the Ultra Siliconizer which is 100% acrylic, has the enough amount of silicon to make it waterproof and seal your roof, but with the advantage of any 100% acrylic roof coating which allows you to paint on top and re-coat in a future with any acrylic elastomeric product.

can I use this on shingles roof?

Asked by Mario March 22, 2021
2
Answers

That is not recommended. I think it causes the shingles to become brittle.

How many square feet per 5 gallon pail?

Asked by Rey March 18, 2021
3
Answers

I'd say 250 sq.ft. but I put it on really thick with a roller.

How many gallons per square foot.

Asked by Sagebrush February 26, 2021
1
Answer

Hi Sagebrush, Ultra Siliconizer™ is a single component 100% acrylic silicone elastomeric for roofs and walls with outstanding adhesive properties that will provide a thick, high performance, water and weather resistant seal on most surfaces, usually without need of a primer coating. The recommend coverage is 50 ft.2/gal. (4.65 m2/gal.) @17 dry mils, 32 wet mils per application and we recommend two applications.

If apply this on the wood, is it okay to put underlayment on top of it for added protection? If ...

Asked by Ernie February 20, 2021
1
Answer

Hi Ernie, the Ultra Siliconizer™ is a premium high solids, 100% acrylic roof coating modified with a very small amount of silicone, that adheres tightly to most roofing substrates and provides a long lasting water and weatherproof seal. It has excellent energy savings properties due to its sun and heat reflectance. Miami-Dade County approved. But our recommendation is to use Aqua-Proof™ Primer which is a monolithic membrane made of styrene/butadiene latex that provides an easy alternative for many waterproofing applications as a base or primer. Aqua-Proof™ performs best when used as a primer over existing surfaces and tested extremely well during continuous water immersion. It waterproofs concrete and protects from silage attack. You can also use over wood, but you always have to topcoat in which case you can use the Roof Coating, paint, stucco or thin set and tile. It's a great product.

Can this be applied over plywood treated with water sealant?

Asked by VardoBuilder February 8, 2021
1
Answer

Hi Vardo, unfortunately we recommend not to use the Ultra Siliconizer on a plywood previously treated with water sealant.

5 Gal. Ultra Siliconizer 100% Acrylic Elastomeric Reflective Roof Coating (Silicone-modified) - page 2

Customer Reviews

  • 4.7
    out of 267 reviews
  • 88% recommend this product
Filter by:
Showing 1-10 of 267 reviews
Excellent product...
Excellent product
by Floridana
Fabulous Stuff !!
Let me tell you. 4 months ago we put 10 gallons (2 - 5 gallon buckets of Ultra Siloconizer on our 1620 s/f roof. Thin coat. That alone sealed 5 leaks !! We were AMAZED !! And we noticed a big diference as far as coolness in the house, even with the neighbor's tree removed that used to give us shade. (We have 3 rooms with no attic space for insulation and WOW, what a difference !!) Because we realized we didn't use the correct amount for the square footage 1st time before reading comments here nor applying it correctly, we spent 7 hours dipping roller into bucket and applying. WRONG !! This weekend we added 7 more buckets (35 gallons). No mixing. Next year we will add the UV protectant. GREAT STUFF !! Note: be sure to prep your roof. Sweep debris off or use blower pack and make sure roof is dry. We found BEST WAY TO APPLY - pour and sweep - get a $1 soft bristle broom from Dollar Tree and sweep it. Soft bristle broom better than a roller or squeegee. We have shingles with flat rolled roofing. Pour couple gallons and sweep against the shingles to mat them down. You won't believe the appearance, nor the time saver applying with a broom. Took 2 people 3 hours (if that). You can't tell it's shingles anymore. NO wind nor rain will get under any shingle. Great Appearance!! Thank you, Lanco !! Roofer wanted $16,000 for new roof. We spent $1,000 - a FRACTION of the cost - 1/16th. This was also advertised on The Weather Channel during this past Hurricane Season. Don't hesitate; take it from an amateur here; and I'm female 67. If I can do it, anyone can -- Heavy stuff; we also used a pulley to hoist buckets up. Thank you again, Lanco !!
by SunnySouthFlorida
12 people found this helpful
This product was easy to use and very easy to clean up my 5th wheel rv roof looks brand new i pu...
This product was easy to use and very easy to clean up my 5th wheel rv roof looks brand new i put it on just in time before this hot heat wave came in it helped keep the interior cooler i highly recommend it as an alternative way to the high price of rv materials
by John
1 person found this helpful
Applied easily with a roller. I swept the roof with a broom as prep. Did about 1000 sq ft of roo...
Applied easily with a roller. I swept the roof with a broom as prep. Did about 1000 sq ft of roof with one bucket. House can now be seen from space. Took about 4-5 hours. Seemed to seal everything. Might do a second coat just as insurance and to get any thin spots.
by criticaljames
8 people found this helpful
So far so good! I applied it myself - female, 57 years old!!! =) no leaks!!
So far so good! I applied it myself - female, 57 years old!!! =) no leaks!!
by Davey28Fan
8 people found this helpful
You can "feel" the difference on the roof after painting. The temperature of the roof lowers by q...
You can "feel" the difference on the roof after painting. The temperature of the roof lowers by quite a lot, allowing you to kneel directly on roof to finish up caulking, etc!
by HomeDepotCustomer
2 people found this helpful
I use Elastomeric Coating to seal my concrete tiles on my roof. Not only does it seal and attach...
I use Elastomeric Coating to seal my concrete tiles on my roof. Not only does it seal and attach tiles to the roof it makes the roof completely waterproof. A small doll house of concrete construction was tested in a wind tunnel at Pratt & Whitney and only shook a little at 225 miles per hour. Lanco Ulta Siliconizer was the product I used for the past 15 years. Once I had to remove two tiles that cracked when a heavy oak limb from a nearby oak tree fell on the roof and I needed a small ballpoint hammer and chisel to remove same.
by HENRYETTA
7 people found this helpful
dried to a rubber like consistency, applied easily with a 3/4" nap roller (no mixing like Liquid ...
dried to a rubber like consistency, applied easily with a 3/4" nap roller (no mixing like Liquid Rubber products, and about 1/3 of the price for a 5 gal. can). Used Eternabond tape and Ultra siliconizer to completely restore a 13 yr old EDPM travel trailer roof. 5 gal used to cover the roof of Palomino Puma 25RKS, hoping to get another 5 years out of completely restored trailer, roof was my biggest concern and this product certainly fit the bill
by justjoe
7 people found this helpful
The product performed exceptionly well. It stopped a leak that was there for 25 years, even after...
The product performed exceptionly well. It stopped a leak that was there for 25 years, even after a new roof was installed. The only bad thing was I got a bad can the first time. This was with only one coat, and I still have enough for 2 more coats. Great stuff!!
by Maybe
10 people found this helpful
AWESOME Product! Works Great
I installed this product in April 2015. Installation was quick and easy. Clean up was also easy and quick. I used a total of 9 five gallon buckets. How well did it work. It has been working flawlessly. It has sealed the roof well. It also prevents heat gain very well. I took Thermo pictures of the roof prior to starting and then after the two coats were applied. The results were very positive. Over a 60 degree surface temperature drop. I attached a report of the surface temperature difference. This is a very good product. I will follow up in two years.
by warmnsunny
33 people found this helpful
Showing 1-10 of 267 reviews