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Internet # 202086638

Model # RC905-4

Store SKU # 548858

Ultra Siliconizer 1 Gal. 100% Acrylic Elastomeric White Reflective Roof Sealer

$27.98 /gallon
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  • For commercial, residential, and mobile home roofs
  • Silicone-modified formula for increased durability and adhesion
  • Provides waterproof seal
  • View More Details
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Product Details

About This Product

Ultra Siliconizer is a thick, high performance silicone-modified 100% acrylic elastomeric roof sealer. The silicone-modified formula is designed to promote excellent resistance to cracking, peeling, and blistering, even under severe weather conditions. It provides a full waterproof and weatherproof seal on most roof surfaces, which significantly lowers the interior temperatures of the structure.

Highlights

  • May be applied with roller, brush, squeegee or sprayer
  • Covers approximately 50-100 sq. ft. per gallon per coat depending on the substrate. Two coats recommended.
  • For previously coated roofs, concrete/masonry, metal, rubberized asphalt, rubberized mastic, trailers and wood
  • Dry to touch: 1 hour; Dry to recoat: 24 hours
  • Click here to learn more about Eco Options and Energy Efficiency
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Product Information

Internet # 202086638

Model # RC905-4

Store SKU # 548858

Specifications

Dimensions: H 7.5 in, W 7 in, D 7 in

Dimensions

Product Depth (in.)

7 in

Product Height (in.)

7.5 in

Product Size (oz.)

128

Product Width (in.)

7 in

Details

Application Method

Brush On, Roll On, Spray On, Squeegee

Approximate Coverage Per Gallon (sq. ft)

50

Coating Base

Acrylic

Cold Applied

Non Cold Applied

Features

Algae Resistant, Cool Roof Certified, High Reflectivity, High Wind Resistant, Mildew Resistant, Paintable, Quick Dry, Water Resistant, Waterproof

Fire Rating (UL 790)

No Rating Available

Number per Package

1

Package size (gallons)

1 gal

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 10 years of purchase, provided it has been applied per manufacturer’s specifications.

Questions & Answers

477Questions
caret
Q:I bought the 15 year. Lanco coating Can I use this product on an exterior stucco fireplace enclosure?
by|Apr 29, 2024
0 Answer
Answer This Question
caret
Q:What size (thickness) roller do I need to apply over new OSB?
by|Apr 25, 2024
1 Answer
Answer This Question

A:  Hi Kevin, for the Ultra SIliconizer Lanco recommends a 1/4" Nap roller.

by|Apr 26, 2024
    caret
    Q:How many 5gal Buckets would be needed to cover an area of 1,100 sq ft?
    by|Apr 16, 2024
    1 Answer
    Answer This Question

    A:  Hi Chris, our suggestion is that one gallon should cover 50 square feet, in your case you will need 9 buckets as you need 22 gallons for each application.

    by|Apr 17, 2024
      caret
      Q:Can I use this product at RV rubber roof?
      by|Apr 11, 2024
      1 Answer
      Answer This Question

      A:  Hi Hertz, for your EDPM rubber roofs we recommend the Coolguard. If you want to use the Ultra Siliconizer, then we recommend to use the Aqua-Proof Primer first, and the the Ultra SIliconizer.

      by|Apr 14, 2024
        Showing 1-4 of 477

        Customer Reviews

        4.7 out of 5

        • 4.7 out of 566 reviews
        • 89% recommend this product
        Filter by:
        Showing 1-10 of 566 reviews
        • Verified Purchase
        Split and cracked
        I followed manufacturers instructions and the product did not work
        by
        Response from Lanco Product ExpertJan 22, 2024
        Hi Kyle, we are sorry to hear of your less than satisfactory experience. There are various situation that may have caused this during the application. Please feel for to contact our technical support team at 786-495-5944.
          Wish the dry time was a little faster and a little thicker but stuff works great
          by
            Professional grade stuff!
            I use this on all my roof resealing jobs. Whether it’s resealing an rv roof, Florida room roof, mobile home roof, etc it’s seals all gaps cracks and leaks leaving your roof bright white and water tight. It also reflects a ton of heat off the roof and uv protects it
            by
              • Recommended
              2 found this review helpful
              Lanco Ultra siliconzer
              This stuff works perfect It seals fast perfect for roofing
              by
              • Verified Purchase
              1 found this review helpful
              Must try product
              I wanted to see how good Silicone will work on my flat roof as the review's said. It went on very well and so far it block the leaks and covers the surface from wear and only to see if it really reflects the sun to keep the house cool.
              by
              • Verified Purchase
              • Recommended
              1 found this review helpful
              118 outside temp inside 77
              Seals out water and works great lowers inside temp. it goes on heavy and it sticks anywhere you apply it, over a week to completely dry in warm weather, don't use it if raining or high water condensation washes off.
              by
              • Verified Purchase
              • Recommended
              3 found this review helpful
              Great product. Used as a primer coat on asphalt
              Great product. Not too difficult to put down over asphalt using a roller with the proper nap thickness. Used as a primer for a flat roof before putting on a second coat with Henry's. I'm not sure how well it will work or how many coats you would need just using this product alone but it worked perfect as a primer
              by
              • Verified Purchase
              • Recommended
              1 found this review helpful
              So far, so good
              I have a flat roof on the back side of my house with roll roofing that was installed 8 years ago. That room always gets really hot in the Summer so I decided to try this on it. I bought two five gallon buckets which was just barely enough for two coats. (440 sq ft.) It dropped the roof temperature by 60º and the room beneath is a lot more comfortable. I think I may buy a third bucket and hit it one more time but so far, it's doing great.
              by
                • Recommended
                6 found this review helpful
                Ruined new roof
                2018 2-3 layers onto new shingle's. Sept. 21 one leak at the edge of the roof. Damaged wood and water under ALL the singles. From Florida condensation. The roof will be needing complete re-roofing. No big label on product advising how to use on shingles.
                by
                Response from Lanco Product ExpertNov 20, 2021
                Hi Harold, we apologize for all the inconveniences this has brought you. We are aware of this issue and highlight it on the product label, we highly recommend all of our customers to read the product label before starting any project. For future reference this is what is stated on back of the Ultra Siliconizer product label:

                NOTE FOR ASPHALT SHINGLES - Prior to application over asphalt shingle roofs the attic area should be very well ventilated (gable vent fan works best) to prevent condensation on the roof or in between the layers of the shingles or decking. Follow proper cleaning and preparation as described above.
                  5 found this review helpful
                  Showing 1-10 of 566 reviews

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                  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

                  Concrete/Masonry

                  Coated Roofs, Concrete Roofs, Concrete/Masonry, Metal, Metal Roofs, Mobile Home Roof, PVC Membrane, Rubberrized-Asphalt, Rubberrized-Mastic, Rv Roof, Trailer Roof, Wood

                  Concrete Roofs, Metal Roofs

                  Coating Base

                  Acrylic

                  Acrylic

                  Acrylic

                  Acrylic

                  Application Method

                  Brush On, Roll On, Spray On, Squeegee

                  Brush On, Roll On, Spray On

                  Brush On, Roll On, Spray On, Squeegee

                  Brush On, Roll On, Spray On

                  Features

                  Algae Resistant, Cool Roof Certified, High Reflectivity, High Wind Resistant, Mildew Resistant, Paintable, Quick Dry, Water Resistant, Waterproof

                  Algae Resistant, Corrosion Resistant, Extreme Heat, High Wind Resistant, Ice and Water Shield, Mildew Resistant, Paintable, Rust Resistant, Water Resistant

                  Algae Resistant, Cool Roof Certified, Corrosion Resistant, Extreme Heat, High Impact/Hail Resistant, High Reflectivity, High Wind Resistant, Impact Resistant, Mildew Resistant, Paintable, Rust Resistant, Water Resistant, Waterproof

                  Algae Resistant, Cool Roof Certified, High Reflectivity, Mildew Resistant, Water Resistant

                  Approximate Coverage Per Gallon (sq. ft)

                  50

                  200

                  50

                  50