Dymonic FC is a one-part moisture curing, caulk-gun applied polyurethane sealant.
Dymonic FC is low modulus, durable, flexible, and offers excellent performance
in seams and moving joints. Dymonic FC does not require a primer on most materials,
but it adheres very well to cured epoxy-coated surfaces and fiberglass laminates.
Dymonic FC is an excellent general purpose sealant designed for use on bare wood,
epoxy-treated wood, fiberglass laminates, concrete and masonry construction joints,
and vinyl siding. Dymonic FC is suitable for continual immersion in water. Dymonic
FC is designed for interior and exterior use.
Do not apply over damp or contaminated surfaces. Substances that will
contaminate a surface include glycols or products suspended in glycol,
waxes or products with a wax base, substances that contain or contained
silicones. Surfaces should be dry and clean to the base substrate.
Penetrating epoxy coatings on the substrate should be fully cured before
Dymonic FC is applied. Use with adequate ventilation.
Immediately available in 10.1 oz. (300 ml) gun cartridges.
|Stocked in 10 oz. cartridges in gray.
Dymoinc FC meets or exceeds the requirements of the following specifications:
- ASTM C 920, Type S, Grade NS, Class 35, Use NT, M, A, and O
- U.S. Federal Specification TT-S-00230C, Class A, Type II
May be used in any vertical or horizontal joint, seam or crack. Application tube
should be cut to the width of the joint and Dymonic FC applied to a depth at least
equal to the width of the joint. Closed cell polyethylene rods or adhesive-backed
polyethylene tape can be used to control the depth of the sealant bead on very
For best adhesion, the joint interface must be clean and dry. The joint surface
may require a thorough wire brushing, grinding, sandblasting, or solvent washing.
A primer such as CPES™ (Clear Penetrating Epoxy Sealer) can be used if desired.
Primed surfaces should be cured before Dymonic FC is applied.
Dymonic FC is easy to apply with conventional caulking equipment. Fill joint completely
and tool. At 75°F (24°C), 50% R.H. a durable skin forms within 24
hours. Curing continues at the rate of 1/16 inch (1.6mm) depth per day. The cure
rate is lengthened at lower temperatures and less humidity. Dymonic FC can be
painted after it has cured.
Tooling & Cleaning
Tooling is recommended immediately after application to insure firm, intimate
contact with the joint or seam interface. Dry tooling is preferred, although tooling
agents (such as soapy water) can be used. Excess sealant and smears adjacent to
the joint can be removed with xylene, toluene or mineral spirits before sealant cures. After sealant cures excess compound can be cut away with a blade.
Here is a chart that will help you estimate how many cartridges you will need
for any application:
For additional information, refer to the Dymonic
FC Material Safety Data Sheet.