Titebond® WeatherMaster™ Gutter & Seam Sealant provides a highly weather-resistant seal against water, wind, dust and dirt. This long-lasting advanced polymer sealant retains resiliency and flexibility for years. Gutter & Seam Sealant was formulated specifically for sealing aluminum, galvanized and vinyl clad gutters and downspouts. This sealant has excellent adhesion to wood, metal, aluminum, steel, plastics, masonry and glass. It expands and contracts with the change of weather and will not crack.

Features & Benefits

  • Designed for gutters, downspouts and flashing
  • Superior adhesion to prevent leaks
  • Remains flexible in extreme temperatures
  • Adheres to wood, metal, masonry, glass and plastic
  • Weather-resistant
  • Paintable*
  • Compatible with all types of foam



Application Guidelines

  • Application Temperature: Above 0°F (-18°C)
  • Service Temperature Range: -75°F. to 300°F (-59°C to 149°C).
  • Method of Application: Cartridge/caulking gun
  • Tooling Time: For a 1/4" bead, approximately 20-40 minutes, depending on temperature and humidity. Recommended times are based on 70°F and 50% RH. Cool dry conditions will slow cure, hot and humid conditions will reduce cure times.
  • Working Surfaces: Surfaces must be cleaned down to the original substrate and free from any material that may deter adhesion. It is the sole responsibility of the user to thoroughly test any proposed use with all substrates to determine project suitability prior to using product on your application. To ensure neat sealant lines, mask areas adjacent to joints. Once the sealant is dry to the touch and does not transfer, remove the masking tape. Not for use with nail holes or butt joints. Not designed for continuous submersion or use below the waterline.
  • Cleanup: Uncured material may be cleaned with isopropyl alcohol or equivalent solvent. After curing, excess sealant must be cut or scraped away. Follow solvent vendor’s precautions when using solvents. NOTE: Test solvent on an out-of-the-way area to make sure it will not mar or attack the surface.
  • Substrate Compatibility: Excellent adhesion to Kynar™ coated materials. For use on polycarbonate, check with polycarbonate supplier on compatibility. For questions, please call our Help Line at 1-800-347-4583.
  • Storage: Store unused product in tightly closed container, in a dry location at or below 75°F (24°C).
  • Coverage:
    Container 1/4" Bead 3/8" Bead 1/2" Bead
    10.1 oz. Cartridge 31 ft. 14 ft. 8 ft.

Physical Properties

  • Type: Advanced polymer
  • Reactive VOC: 0 g/L (10 g/L [<2% wt.] during cure)
  • Color: White and aluminum gray
  • Weight Per Gallon: 12.52 lbs.
  • Flashpoint: Solvent free/Not applicable
  • Solids: 98%
  • Freeze/thaw Stability: Stable
  • Viscosity: 500,000 cps
  • Storage Life: Up to 24 months in tightly closed containers below 75°F (24°C)


Air, sealant and surface temperature should be above 0°F(-18°C). WeatherMaster Gutter & Seam is intended for exterior use. If light colors are used indoors, the sealant must be painted.* Always apply sealant in a bead form. Once the sealant is applied, do not smear or feather sealant to a thin film unless it is painted due to accelerated aging under UV exposure. Do not wipe with solvents or tool with soap or alcohols. If joint depth exceeds 1/2”, use backing material. NOTE: Highly recommend using backer rod/backing material for all joints. For use on polycarbonate, check with polycarbonate supplier on compatibility. For questions, please call our Help Line at 1-800-347-4583.

*Painting may occur two hours after application with a water-based (latex-based) paint. For other paint types, a compatibility test is recommended.

Product SKUs

Part NumberUPCCase UPCSizeWeightUnits Per PackagePackages Per PalletColor
73210370830732181003708307321510.1 Oz. Cartridge - White14.9212108
73310370830733171003708307331410.1 Oz. Cartridge - Aluminum Gray14.9212108

Caution Statement

CAUTION: EYE AND SKIN IRRITANT. Do not swallow. Do not allow eye contact or prolonged skin contact. First Aid: If swallowed, do not induce vomiting; contact physician. If eye contact occurs, flush with water for 15 minutes. Wash skin contact areas with soap and water. If irritation from eye or skin contact areas persists, contact physician. Product releases methanol during cure. For additional information, refer to Safety Data Sheet. KEEP OUT OF THE REACH OF CHILDREN.

Important Notice: Our recommendations, if any, for the use of this product are based on tests believed to be reliable. Since the use of this product is beyond the control of the manufacturer, no guarantee or warranty, expressed or implied, is made as to such use or effects incidental to such use, handling or possession or the results to be obtained, whether in accordance with the directions or claimed so to be. The manufacturer expressly disclaims responsibility therefore. Furthermore, nothing contained herein shall be construed as a recommendation to use any product in conflict with existing laws and/or patents covering any material or use.

2020 Bruck Street, Columbus, Ohio 43207
CUSTOMER SERVICE 1-800-669-4583
TECH SERVICE 1-800-347-4583

Franklin International