CRL Buff Tremco® DyMonic® FC Polyurethane Sealant — Expansion Joint

• Fast skin time reduces dirt pick-up for cleaner joints
• Primerless adhesion on most common construction substrates
• Available in sausage packs for bulk use

CRL Tremco® DyMonic® FC is a fast-skinning, high-performance, low-modulus, one-component moisture-curing polyurethane sealant engineered for construction joints, curtainwall, precast and tilt-up panels. DyMonic® FC cures to a smooth, consistent surface and provides strong, long-lasting adhesion without primer on most common substrates when surfaces are dry, clean, and free of contaminants. Its non-sag consistency guns easily with conventional caulking equipment, and it skins in about one hour at 70°F (21°C), minimizing dirt pick-up compared to standard polyurethane sealants with longer skin times. SKU: 960807323


Basic Uses
DyMonic® FC is ideal as a polyurethane construction sealant for sealing dynamic moving joints in precast concrete panels, curtainwall systems, tilt-up panels, expansion and control joints, perimeter caulking of windows and doors, and bedding of mullions, frames, and panels. It offers excellent weather resistance, high recovery, and shear resistance, providing durable performance for building envelope and architectural joints.

Technical Data
Meets U.S. Federal Specification TT-S-00230C, Type II, Class A; Canadian standard CAN/CGSB-19.13-M87; and ASTM C 920, Type S, Grade NS, Class 50 (DyMonic® FC) Class 25 (DyMonic®), Use NT, M, A and O.

Limitations
Do not apply to damp or contaminated surfaces. Some substrates may require priming, such as certain high-performance paints and architectural finishes. Painting over DyMonic® is not recommended since paint may crack and peel when joint movement occurs. Check cartridge label and the Specification Data Sheet for additional limitations and substrate guidance.

Comparable Sealants
CRL: M66 Polyurethane Sealant, M64 Polyurethane Sealant, M65W PermaWhite. Tremco®: Vulkem® 116, Vulkem 921, TremGlaze U1400, TremPro 626. Sika®: 1A, 15LM. Sonneborn: NP1. Pecora: Dynatrol 1. OSI: PR-255. Schnee Moorehead: 7100. Bostik: Chem-Calk 900.


Product Warning:

Do not apply to damp or contaminated surfaces. Some substrates may require priming, such as certain high-performance paints and architectural finishes. Painting over DyMonic® is not a recommended practice since paint may crack and peel when joint movement occurs. Check cartridge label and Specification Data Sheet for additional limitations.