Dymonic 100 High-Movement Polyurethane Sealant

Tremco Dymonic® 100

High-Performance, High-Movement Single-Component Polyurethane Sealant | Brand: Tremco

Tremco Dymonic 100 is a single-component, moisture-curing polyurethane sealant for high-movement joints in commercial and institutional construction. Designed for specifiers, glazing contractors, and building envelope professionals. Confirm suitability, primer requirements, joint design, and substrate compatibility against the current Tremco TDS, SDS, and project specification before use.

Professional note: Dymonic 100 is rated for ±50% joint movement. Joint design, substrate preparation, and correct tooling are critical to achieving a durable, watertight seal. Always confirm substrate compatibility and primer requirements against the current TDS before application.

Product Description

Dymonic 100 cures by reaction with atmospheric moisture to form a flexible, permanently elastic seal. Its single-component formulation eliminates on-site mixing. The cured sealant is formulated for UV exposure, weathering, and temperature cycling on exposed exterior joints; confirm UV and weathering performance against the current TDS for your specific exposure conditions.

With a ±50% movement capability, Dymonic 100 is designed to accommodate the thermal expansion, structural movement, and substrate deflection typical of modern commercial construction. It is paintable after full cure and available in a range of colours; confirm colour availability with Canopus Supply before specifying.

Key Characteristics

±50% joint movement capability — designed for high thermal and structural movement in commercial building joints; confirm joint design requirements against the TDS.
Single-component, moisture-curing — no mixing required; apply directly from the cartridge or sausage pack.
Adhesion to multiple substrates — designed for adhesion to concrete, masonry, metal, glass, aluminum, and many coated surfaces; confirm primer requirements by substrate against the current TDS.
UV and weather resistance properties — formulated for exposed exterior joints; confirm UV and weathering performance against the TDS for your specific exposure conditions.
Paintable after full cure — accepts latex and oil-based paints; do not paint over uncured sealant.
Non-sag formula — designed for vertical and overhead joint applications; confirm suitability against the TDS.
Colour range — available in multiple standard colours; confirm current availability with Canopus Supply before specifying.

Typical Applications

Expansion and control joints in concrete and masonry facades
Curtain wall and storefront perimeter sealing
Precast concrete panel joints
Window and door perimeter sealing
Metal panel and composite cladding joints
Parking structure and podium deck perimeter joints
General building envelope joint sealing

Performance Highlights

Movement Capability ±50% — confirm joint design against TDS	Components Single-component	Cure Mechanism Moisture-curing polyurethane
Application Vertical, horizontal, overhead — confirm against TDS	Paintable Yes, after full cure	Primer Confirm by substrate against TDS

Surface Preparation & Application

Substrates must be clean, dry, sound, and free of dust, oil, grease, laitance, and incompatible coatings. Install backer rod to the correct depth to achieve the joint width-to-depth ratio specified in the TDS. Apply sealant by gun, tool immediately to ensure full contact with joint faces, and finish smooth. Remove masking tape before the sealant skins. Refer to the current Tremco TDS for primer requirements by substrate, application temperature range, and cure times.

Limitations

Not for use in joints subject to continuous water immersion unless specifically approved by Tremco.
Do not apply to wet, frozen, or contaminated substrates.
Do not apply below 4°C or above 40°C ambient temperature; confirm temperature requirements against the TDS.
Not recommended for structural glazing or load-bearing applications.
Do not paint until fully cured — premature painting may cause adhesion failure.
Confirm primer requirements for porous, coated, or non-standard substrates against the current TDS before application.

Storage & Shelf Life

Store in original, unopened cartridges or sausage packs in a cool, dry area away from direct sunlight and moisture. Do not freeze. Confirm shelf life and storage temperature requirements against the product label and current TDS.

Health & Safety

Read the current Safety Data Sheet (SDS) before use. Contains isocyanate prepolymers — wear gloves, eye protection, and ensure adequate ventilation. Refer to the SDS for full hazard classification and first-aid measures.

Frequently Asked Questions

Does Dymonic 100 require a primer?

In many applications, Dymonic 100 is designed for direct application without primer. However, primer is recommended on certain porous, coated, or non-standard substrates. Always confirm primer requirements against the current Tremco TDS or contact Canopus Supply for guidance.

What joint movement can Dymonic 100 accommodate?

Dymonic 100 is rated for ±50% joint movement. Confirm joint design requirements against the current TDS for your specific application.

Can it be used on exterior exposed joints?

Dymonic 100 is formulated for exposed exterior building envelope joints. Confirm UV and weathering performance against the current TDS for your specific exposure conditions.

Is it paintable?

Yes, Dymonic 100 is paintable with latex or oil-based paints after the sealant has fully cured. Do not paint over uncured sealant.

Purchasing Note: All sales are intended for professional and trade purchasers. Before ordering, confirm product suitability, quantity, colour, joint design, substrate compatibility, pickup timing and delivery requirements. Product use and installation are the responsibility of the purchaser and installer.

Canopus Supply Inc. — Authorized Tremco Distributor, Metro Vancouver & BC

Technical information is provided for professional reference only. Product selection, joint design, substrate preparation, installation method, cure time, and final performance remain the responsibility of the purchaser, installer, project specifier and/or manufacturer documentation. Always confirm suitability against the current TDS, SDS, project specification and site conditions before use.