Titebond WeatherMaster Ultimate Multi-Purpose Sealant is a premium-grade, superior polymer, multipurpose exterior sealant that offers unbeatable adhesion to most common building materials. It is specifically formulated to outperform all other sealant technologies, including VOC solvent, silicones, tripolymers and urethanes. It can b...


Features & Benefits

IDEAL FOR: Exterior applications like: windows, doors, shutters, exterior trim, metal/vinyl siding, gutters, vents, RVs, metal roofs, tractor trailers and buses.
SEALS: PVC, wood, concrete, masonry, stucco, wall panels, vinyl, glass, fiberglass, plastic, siding, flashing, sheet metal, Kynar™ coated metals, aluminum, galvanized steel, copper and most common building materials.
Outperforms silicone, tripolymer and urethane sealants
Applies in extreme weather conditions
Joint movement capability ± 50%
UV-resistant and VOC-compliant
Compatible with all types of foam
Permanently flexible - Will not crack

Application Guidelines

Application Temperature:
Above 0°F (-18°C)
Service Temperature Range:
-75°F to 212°F (-59°C to 100°C)
Method of Application:
Cartridge/caulking gun, bulk/sausage 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. To ensure neat sealant lines, mask areas adjacent to joints. Once sealant is dry to the touch and does not transfer, remove masking tape. 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. Do not apply Metal Roof Translucent to polycarbonate due to solvent cracking. For questions, please call our Help Line at 1-800-347-4583.
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. For other paint types, a compatibility test is recommended.
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.
Container 1/8” Bead 1/4" Bead 3/8" Bead 1/2" Bead
9.5 oz. Cartridge 116 ft. 29 ft. 13 ft. 7 ft.
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. DO NOT TOOL – DO NOT SMEAR. It is highly recommended to use backing material. Application of sealant at high temperatures may cause the sealant to sag in some applications. Check with poly-carbonate supplier on compatibility. Sealant releases methanol during cure, check with substrate manufacturer for compatibility. For best results, store in a dry location at or below 75°F. Contact with asphalt or butyl may cause discoloration, but will not affect product performance.

Physical Properties

Elastomeric superior polymer
Reactive VOC
<50 g/L (<2%)
Reactive VOC
102,000 cps.
Freeze / Thaw Stability
Solvent free/Not applicable
Storage Life
24 months in a dry location at or below 75°F


  • ASTM C920 Type S Grade NS Class 50 Use 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

Warranty Statement

Liability is limited to product replacement only.