Spectrem 1 Moisture-Cure Silicone Sealant
Spectrem® 1 moisture-cure silicone sealant is a premium, single-component, ultra-low modulus sealant engineered for extreme movement in demanding construction joints. Designed to perform reliably in dynamically moving joints, it offers outstanding adhesion—even on challenging substrates—and excellent weather resistance. Spectrem 1 is especially well-suited for curtain walls, metal panels, precast concrete, and perimeter caulking.
Why Choose Spectrem 1?
- Exceptional movement capability of ±100% / -50%
- Excellent primerless adhesion to most substrates
- GREENGUARD Gold certified for use in hospitals and schools
- Compatible with Tremco air barriers, Willseal® joints, and Proglaze® ETA systems
- Available in many color options with custom matching available
Common Applications
- Dynamically moving joints
- Aluminum curtain walls and metal panels
- Precast concrete wall panels
- Perimeter sealing around windows and doors
- Detailing over ExoAir® air barrier systems
Packaging and Product Performance
Spectrem 1 is applied using a standard caulk gun or trowel and offers excellent weathering characteristics with cure times between 14 and 21 days depending on temperature and humidity. It delivers 12 linear feet of coverage at ½” x ¼” joint size per 10.1 oz unit.
Product Properties
| Property | Value |
|---|---|
| Application Method | Caulk gun, trowel |
| Coverage Rate | 12 ft @ ½” x ¼” (10.1 oz) |
| Drying/Cure Time | 14 to 21 days |
| Movement Capability | +100% / -50% |
| Certification | GREENGUARD Gold |
For a versatile polyurethane sealant with fast cure and strong adhesion, consider our Dymonic FC Sealant. You can also find more options in our product catalog or visit tremcosealants.com for additional resources.
