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Black Jack

4-3/4-Gallon Externa-Kote Silicone Waterproofing Technology

Mfg.#
5576-1-30
Sku#
618314
  • Strongest waterproof seal
  • 100% silicone rubber
  • Ideal for flat roofs with standing water
  • High solids formula
  • Seals, reflects and protects roofs

* Estimated stock levels as of Thu, Apr 2, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

ETERNA-KOTE S-100 Silicone+ Roof Coating is a 100% white silicone coating that provides the ultimate durability and longevity to your roof surface. This product has the highest degree of waterproofing protection and provides superior protection to the underlying roof surfaces. It is ideally suited for flat roofs that have a tendency to pond water, as well as on installations that require the best waterproofing coating available. The bright white finish keeps roofs cool, which in turn can help lower cooling costs. In hot or cold climates, this coating forms a seamless layer of waterproofing coating that will stretch to prevent cracking and peeling. This is our best liquid waterproofing coating.

Specifications

General

Composition Dimethyl Polysiloxe, Silica Quartz, Polydimethyl Siloxane, Methyltrimethyl Siloxane, Titanium Dioxide, Fumed Silica, Aminopropyl Trimethoxy Silane
Flash Point >247° F
Form Liquid
Odor/Scent Paint-Like Odor
PH Range 8
Series EternaFlex Liquid Rubber
Specific Gravity 1.33 Water=1
Temperature Range 45 - 99° F
Type Roof Coating
Usage For Flat Roofs With Standing Water, Seals, Reflects and Protects Roofs
VOC Content <10 g/l

Manufacturing Details
The following information is subject to change without notice

Country of Origin US
Manufacturer Warranty Limited Lifetime
Prop 65 Warning Warning WARNING: This product can expose you to chemicals including Titanium dioxide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Shop USA Yes

Dimensions

Size 4-3/4 gal

Label Information

Certification, Codes, Standards Florida Building Code, MIAMI-DADE COUNTY Approved, NSF Certified

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