Deliver To:

  • Afghanistan
  • Albania
  • Algeria
  • Amer.Virgin Is.
  • American Samoa
  • Andorra
  • Angola
  • Anguilla
  • Antarctica
  • Antigua Barbuda
  • Argentina
  • Armenia
  • Aruba
  • Australia
  • Austria
  • Azerbaijan
  • Bahamas
  • Bahrain
  • Bangladesh
  • Barbados
  • Belarus
  • Belgium
  • Belize
  • Benin
  • Bermuda
  • Bhutan
  • Bolivia
  • Bonaire, Saba
  • Bosnia-Herz.
  • Botswana
  • Bouvet Island
  • Brazil
  • Brit.Ind.Oc.Ter
  • Brit.Virgin Is.
  • Brunei Daruss.
  • Bulgaria
  • Burkina Faso
  • Burundi
  • C. African Rep.
  • Cambodia
  • Cameroon
  • Canada
  • Cape Verde
  • Cayman Islands
  • Chad
  • Chile
  • Christmas Islnd
  • Coconut Islands
  • Colombia
  • Comoros
  • Congo
  • Cook Islands
  • Costa Rica
  • Cote d'Ivoire
  • Croatia
  • Curacao
  • Cyprus
  • Czech Republic
  • Dem. Rep. Congo
  • Denmark
  • Djibouti
  • Dominica
  • Dominican Rep.
  • Ecuador
  • Egypt
  • El Salvador
  • Equatorial Guin
  • Eritrea
  • Estonia
  • Ethiopia
  • Falkland Islnds
  • Faroe Islands
  • Fiji
  • Finland
  • France
  • Frenc.Polynesia
  • French Guiana
  • French S.Territ
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Gibraltar
  • Greater China (Chinese Mainland)
  • Greater China (Hong Kong SAR)
  • Greater China (Macau SAR)
  • Greater China (Taiwan)
  • Greece
  • Greenland
  • Grenada
  • Guadeloupe
  • Guam
  • Guatemala
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Heard McDon.Isl
  • Honduras
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Iraq
  • Ireland
  • Israel
  • Italy
  • Jamaica
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Kiribati
  • Kosovo
  • Kuwait
  • Kyrgyzstan
  • Laos
  • Latvia
  • Lebanon
  • Lesotho
  • Liberia
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Madagascar
  • Malawi
  • Malaysia
  • Maldives
  • Mali
  • Malta
  • Marshall Islnds
  • Martinique
  • Mauritania
  • Mauritius
  • Mayotte
  • Mexico
  • Micronesia
  • Minor Outl.Isl.
  • Moldova
  • Monaco
  • Mongolia
  • Montenegro
  • Montserrat
  • Morocco
  • Mozambique
  • Myanmar
  • N.Mariana Islnd
  • Namibia
  • Nauru
  • Nepal
  • Netherlands
  • New Caledonia
  • New Zealand
  • Nicaragua
  • Niger
  • Nigeria
  • Niue
  • Norfolk Island
  • North Macedonia
  • Norway
  • Oman
  • Pakistan
  • Palau
  • Panama
  • Pap. New Guinea
  • Paraguay
  • Peru
  • Philippines
  • Pitcairn
  • Poland
  • Portugal
  • Puerto Rico
  • Qatar
  • Reunion
  • Romania
  • Russian Fed.
  • Rwanda
  • S. Sandwich Ins
  • S.Tome,Principe
  • Saint Helena
  • Saint Lucia
  • Samoa
  • San Marino
  • Saudi Arabia
  • Senegal
  • Serbia
  • Seychelles
  • Sierra Leone
  • Singapore
  • Sint Maarten
  • Slovakia
  • Slovenia
  • Solomon Islands
  • Somalia
  • South Africa
  • South Korea
  • Spain
  • Sri Lanka
  • St Kitts&Nevis
  • St. Vincent
  • St.Pier,Miquel.
  • Suriname
  • Svalbard
  • Swaziland
  • Sweden
  • Switzerland
  • Tajikistan
  • Tanzania
  • Thailand
  • Timor-Leste
  • Togo
  • Tokelau
  • Tonga
  • Trinidad,Tobago
  • Tunisia
  • Turkey
  • Turkmenistan
  • Turksh Caicosin
  • Tuvalu
  • Uganda
  • Ukraine
  • United Kingdom
  • United States
  • Uruguay
  • Utd.Arab Emir.
  • Uzbekistan
  • Vanuatu
  • Vatican City
  • Venezuela
  • Vietnam
  • Wallis,Futuna
  • West Sahara
  • Yemen
  • Zambia
  • Zimbabwe

Weatherproofing

House building and city construction concept

Weatherproofing

Weatherproof your construction with silicone sealants and coatings

Usher in greater sustainability and reduce lifetime costs with high-performance weatherproofing solutions for your entire building envelope. Whether renovating or building new, you can stop air and water infiltration to achieve your energy-efficiency goals with our broad range of silicone sealants, coatings and pre-formed sealants.

From long-lasting sealants featuring versatile movement capabilities and precise color match, to breathable silicone elastomer coatings that fight seasonal thermal expansion-contraction, to pre-formed sealants that offer a more efficient way to repair failed building weatherseals, our weatherproofing solutions give you competitive edge in protection and performance. 

Across all weatherproofing applications, our silicone solutions offer significant benefits such as:

Three employees looking at blueprints and schematics

Submittal Generator Tool

Dowload and organize your submittal documents. (Available in North America)

Featured silicone weatherproofing solutions

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Sealants

Find silicone weatherproofing wet sealants designed for lasting performance, versatile movement and precise color match. 

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Coatings

Find coating products that solve seasonal thermal expansion-contraction, even on EIFS panels.

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Pre-formed Sealants

Find durable and attractive pre-formed sealants that offer an efficient way to repair weatherseals without removing the old caulk.

DOWSIL™ Contractors Paintable Sealant

This one-part, fast-curing, non-sagging, elastomeric hybrid sealant cures quickly and is paintable as soon as it is tack-free. 

DOWSIL™ ALLGUARD Silicone Elastomeric Coating

Designed to waterproof above-grade exterior masonry substrates. DOWSIL™ ALLGUARD Silicone Elastomeric Coating is available in 55 standard colors and unlimited custom colors. Safety Data Sheets are available for each of the three tint bases: Pastel, Mid Tone, and Deep. 

DOWSIL™ 123 Silicone Seal

A pre-formed, ultra-low modulus silicone extrusion that is bonded to substrates using DOWSIL™ 791 Silicone Perimeter Sealant or DOWSIL™ 795 Silicone Building Sealant. This product can be used in both new and remedial construction applications. 

DOWSIL™ Membrane Dual

For indoor and outdoor use.* Provides vapor control according to EN 13984High water vapor resistance factor (μ-value = 100 000). 


* The substrate must be clean, tight and dry prior to the application of the adhesive.

DOWSIL™ Membrane Outside 0.6mm

For outdoor use only.* Provides vapor control according to EN 13984. Open to water vapor diffusion, permitting trapped moisture to dry out.

* The substrate must be clean, tight and dry prior to the application of the adhesive.

DOWSIL™ 300 Adhesive

Adhesive for DOWSIL™ Membrane installation (SMP technology). Excellent durable adhesion performance under wet conditions* and isocyanate-free. 

Learn more about our silicone weatherproofing solutions

Building, Construction & Infrastructure Case Studies

Explore Dow’s library of case studies from across the world to learn more about how customers are using DOWSIL™ products to solve their challenges. 

Commercial skyscrapers 
Baycrest Condominiums located at 201 Harrison St in San Francisco, California

Restoring with EIFS?

Full guidelines for EIFS restoration and field-testing. 

Explore lasting solutions

We are committed to connecting you with experts and resources to tackle any challenge. 

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