Titebond WeatherMaster Gutter & Seam Sealant is a long-lasting, superior polymer sealant that maintains resiliency and flexibility. It provides a highly weather-resistant seal against water, wind, dust and dirt. It is designed to expand and contract with the change of weather and will not crack.

Features & Benefits

  • IDEAL FOR: Sealing aluminum, galvanized and vinyl clad gutters and downspouts.
  • SEALS: Aluminum, galvanized steel, PVC, metal, copper, masonry, wood and most common building materials.
  • Superior adhesion to prevent leaks
  • Remains flexible in extreme temperatures
  • Joint movement capability ± 50%
  • Weather-resistant
  • Paintable
  • Compatible with all types of foam


  • ASTM C920 Type S Grade NS Class 50 Use T, NT, M, A & G
  • Federal Specification TT-S-00230C Type II Class A
Meets the requirements of:
  • CAN/CGSB-19 13-M87 Classification MCG-2-25-A-N

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 10-15 minutes, depending on temperature and humidity.
  • Application Directions: 1. Surfaces must be clean and free of any material that may prevent adequate adhesion. 2. Remove nozzle, cut tip of the nub and puncture inner foil seal. 3. Screw nozzle onto cartridge and cut tip on slant for 1/4" to 3/8" bead and place in cartridge gun. 4. Force sealant into clean joint. Always apply sealant in bead form. No tooling is required. It is the sole responsibility of the user to thoroughly test any proposed use with all substrates to determine project suitability.
  • 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.
  • Painting: Sealant is intended for exterior use. If used indoors, sealant may need to be painted. In most cases, painting may occur one hour after application with a high-quality acrylic, water-based (latex) paint that does not contain plasticizer. It is recommended to paint over sealant with a shellac-based primer before painting. For other paint types, a compatibility test is recommended.
  • Cleanup: Clean uncured material with acetone or isopropyl alcohol. After curing, excess sealant must be cut or scraped away. Follow solvent vendor's precautions when using solvents.
  • Coverage:
    Container1/8” Bead1/4" Bead 3/8" Bead 1/2" Bead
    9.5 oz. Cartridge116 ft. 29 ft. 13 ft. 7 ft.

Physical Properties

  • Type: Elastomeric superior polymer
  • Reactive VOC: <50 g/L (<2%)
  • Color: White and aluminum gray
  • Flashpoint: Solvent free/Not applicable
  • Solids: 100%
  • Freeze / Thaw Stability: Stable
  • Viscosity: 102,000 cps
  • Storage Life: 24 months in a dry location at or below 75°F (24°C)


Not designed for continuous submersion or use below the waterline. Air, sealant and surface temperature should be above 0°F. Copper should be coated to eliminate oxidation before sealing. Once sealant is applied, do not wipe with solvents or tooling aids such as soaps or oils. It is highly recommended to use backing material for all joints. For best results, store in a dry location at or below 75°F. Due to high heat, it is NOT recommended to store sealants above the second shelf (>20 feet high) in a warehouse.

Product SKUs

Part NumberUPCCase UPCSizeWeightUnits Per PackagePackages Per PalletColor
7321037083073218100370830732159.5 Oz. Cartridge - White12.4112108
7331037083073317100370830733149.5 Oz. Cartridge - Aluminum Gray12.4112108

Warranty Statement

Liability is limited to product replacement only.

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