Sealants & Adhesives

SEALANTS & ADHESIVES FOR EXTERIOR ENVELOPE SYSTEMS

Rainier Building Supply supplies sealants, adhesives, and related products for siding, waterproofing, flashing, WRB, and exterior building envelope assemblies. We work with contractors, builders, and installers to help source products that fit the application, substrate, and project requirements.

Sealant & Caulking Products We Supply

We supply a range of sealants and related products used throughout exterior assemblies, including:

  • High-performance exterior sealants
  • Joint and transition sealants
  • Sealants for siding, trim, and panel systems
  • Air and water sealing products
  • Adhesives and bonding agents
  • Specialty sealants for envelope applications

Key Manufacturers

We supply sealants and caulking products from leading manufacturers known for performance, testing, and system compatibility, including:

If a specified product is not part of our standard offering, we work to source it quickly and cost-effectively through our supplier network.

PRODUCT SUPPORT FOR EXTERIOR DETAILS

Our team can help with product selection, compatibility, and availability for exterior details involving siding, WRB, flashing, fasteners, and custom sheet metal. Whether the project calls for a standard sealant or a specific manufacturer product, we can help source the right option.

Coordinated Exterior Systems

Sealant performance depends on proper coordination with the full exterior assembly. Rainier Building Supply helps align:

  • Sealants and adhesives
  • Siding and cladding systems
  • Weather-resistive barriers (WRB)
  • Flashing tapes and membranes
  • Fasteners and accessories
  • Custom sheet metal flashing and trim

Our in-house Sheet Metal (Custom Fabrication) operation produces job-specific flashing components that work together with sealants to support effective water management.

Why Rainier

Family-owned
and locally operated

10+ years
in business
50+ years of combined
industry experience
Focused on the
building envelope

Reliable service and
clear communication
Custom Sheet
Metal Expertise

Trusted by Our Clients

Our team is available to assist with pricing, availability, and product selection.