Tremco sealants protecting a glass curtainwall high-rise building

Building Envelope Systems Since the 1950s

Tremco Sealants — Specification-Grade Performance for Every Joint

From ASTM C920-rated polyurethane joint sealants to silicone curtainwall glazing compounds and ExoAir air barrier membranes — Tremco delivers tested, compliant building envelope solutions trusted by architects and contractors across 40+ countries.

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ASTM C920 Rated ISO 9001:2015 LEED Contributing ICC-ES Listed

Professional sealant application on concrete expansion joint

70+ Years of Expertise

12 Product Lines

2,800+ Certified Applicators

40+ Countries Served

95% ASTM-Compliant Products

Product Lines

Engineered Solutions for Every Building Envelope Challenge

From joint sealants and waterproofing membranes to air barriers and traffic coatings — Tremco manufactures complete building protection systems specified by name.

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Tremco Dymonic polyurethane joint sealant application

Sealants

Dymonic® Polyurethane Sealant Series

High-performance one- and two-component polyurethane sealants for perimeter, curtainwall, and plaza deck joints. Movement accommodation up to ±25% to ±50%.

ASTM C920 Type S/M, Grade NS Get Specs

Tremco Spectrem structural silicone sealant for curtainwall glazing

Sealants

Spectrem® Structural Silicone Systems

Neutral-cure and acetoxy silicone sealants formulated for structural glazing, weathersealing, and sanitary applications. Available in 50+ standard colors.

ASTM C1184 Structural Get Specs

Sealants

Tremco Acoustical Sealant

Non-hardening, non-shrinking sealant for fire-rated and sound-attenuating wall assemblies. Maintains STC ratings in UL-listed partition systems.

UL Listed Fire-Rated Get Specs

Tremco ExoAir fluid-applied air barrier membrane installation

Air Barriers

ExoAir® Air Barrier Systems

Fluid-applied and sheet-applied air barrier membranes that pass ASTM E2357 air barrier assembly testing. Reduces heating and cooling loads by up to 40% vs. no-barrier baseline.

ASTM E2357 Assembly Tested Get Specs

Waterproofing

Below-Grade Waterproofing Systems

Vulkem® and sheet-applied below-grade membrane systems with integral drainage mat and protection board. Engineered for hydrostatic pressure up to 150 ft of head.

ASTM D412 Elongation Tested Get Specs

Tremco Puma polyurethane traffic coating on parking deck

Traffic Coatings

Puma® Traffic Coating System

Aliphatic polyurethane traffic deck coatings for parking structures, plaza decks, and pedestrian areas. UV-stable, abrasion-resistant, and crack-bridging up to 1/16”.

ASTM C898 Crack Bridge Get Specs

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Why Tremco

Specification Confidence Backed by Tested Data

Every Tremco product enters the market with a Technical Data Sheet that includes measured test values — not typical values or estimates — so you can specify with confidence.

Chemistry-Backed Performance

Every Tremco formulation undergoes ASTM-method validation — movement accommodation, adhesion peel, and accelerated weathering — before release. Measured values. No guesswork.

Specification-Grade Compliance

Tremco sealants meet ASTM C920, Federal Specification TT-S-00230, and ICC-ES criteria. TDSs include tested values, not estimates, giving specifiers the data needed for Section 079200.

Certified Applicator Network

2,800+ Tremco-certified applicators across North America ensure correct surface preparation, primer selection, and tooling technique — protecting warranty integrity from day one.

Complete System Warranty

Unlike distributor-model brands, Tremco provides manufacturer-backed system warranties — covering primer, sealant, and substrate adhesion — for qualifying commercial projects.

LEED & Sustainability Support

Tremco ExoAir air barriers and low-VOC sealant options contribute to LEED EA Credit (reduced energy loads) and IEQ Credit (low-emission materials) for green building projects.

Technical Field Support

Tremco Technical Representatives conduct on-site mock-up reviews, pre-construction meetings, and application inspections on specified projects — reducing callbacks and RFIs.

What Specifiers Say

Trusted by Architects and Contractors Nationwide

"We specified Dymonic 100 for the curtainwall perimeter joints on our 32-story glass tower project in Chicago. Tremco's Technical Representative attended our pre-construction mock-up and flagged a substrate compatibility issue before a single tube was opened. That kind of proactive field support is rare in the sealant industry — and it's why we continue to specify Tremco on every major building envelope project."

Margaret Lowell, AIA

Senior Project Architect, Halloran + Macey Architects, Chicago

Technical FAQ

Common Questions from Architects & Contractors

Dymonic 100 is a one-component, moisture-cured polyurethane sealant with ±50% movement accommodation, suited for high-movement perimeter and curtainwall joints. Dymonic FC (Fast Cure) uses a two-component polyurea chemistry that achieves walk-on traffic cure in 4 hours vs. 7-14 days for moisture-cure products — ideal for horizontal plaza deck and parking deck joints where early return to service is required. Both meet ASTM C920 Type S, Grade NS, Class 50.

Polyurethane sealants (Dymonic, Vulkem) are paintable, abrasion-resistant, and adhere well to concrete, masonry, and wood — making them the standard choice for perimeter joints, precast concrete, and plaza decks. Silicone sealants (Spectrem) are UV-stable, non-paintable, and maintain flexibility at extreme temperatures (-65°F to 400°F), making them the specification choice for curtainwall glazing, structural bonding, and any application requiring long-term weatherseal performance without primer on glass or aluminum.

Primer requirements are substrate-specific and documented in each product's Technical Data Sheet. Tremco Primers 171 (polyurethane-based) and 191 (non-porous surfaces) are required on porous cementitious substrates and certain metals for Dymonic and Vulkem sealants. Spectrem silicone sealants typically bond unprimered to clean glass and aluminum. Always consult the TDS and conduct adhesion pull tests on-site prior to production installation — substrate coatings, release agents, and environmental conditions affect adhesion.

Tremco offers system warranties on qualifying commercial projects installed by Tremco-certified applicators. Warranty terms vary by product line and project scope — typically 5 to 10 years on sealant systems, with extended coverage available for ExoAir air barrier and Puma traffic coating systems under the BuildingProtection warranty program. Contact your Tremco Technical Representative early in the design phase to register the project and confirm applicator certification.

All Tremco Technical Data Sheets, Safety Data Sheets, color charts, and MasterSpec-format specification sections are available in our Technical Specifications Library. You can also use the Tremco Sealant Calculator to estimate product quantities for joint dimensions and download pre-filled CSI Section 079200 specification language for Dymonic, Spectrem, Vulkem, and ExoAir products.

Tremco Sealants — Specification-Grade Performance for Every Joint