Flexible, durable sealant for demanding construction joints.

Struggling with joint sealants that attract dirt, crack with movement, or delay finishing work due to slow curing?

Tremco® Dymonic FC cures fast (skins in ~60 minutes, tack-free in 3–4 hours), stays flexible with ±35% joint movement, and resists dirt pickup—delivering long-lasting, clean, and reliable seals without slowing your project.

Compatible with other Tremco systems

Paintable after cure

UV-resistant, won’t yellow or crack

Accommodates extreme joint movement

Bonds to damp concrete instantly