Spectrem 3 low-modulus silicone sealant for EIFS and masonry
Spectrem 3 is a non-staining, neutral-cure, low-modulus silicone sealant developed with advanced technology to seal porous substrates such as EIFS, masonry, precast concrete, and stone. Its low polarity reduces dirt pickup and staining, making it ideal for exposed facades and sensitive surfaces. Spectrem 3 bonds without a primer in many applications and is GREENGUARD Gold certified for use in sensitive environments, including healthcare and schools.
Key Benefits of Spectrem 3
- Non-staining and low polarity reduces dirt pickup
- Primerless adhesion to most porous materials
- Textured finish enhances façade aesthetics
- GREENGUARD Gold certification for sensitive environments
- ±50% movement capability for expansion and contraction
- 20-year warranty when tested under ASTM C1248
Common Applications
- Sealing EIFS systems
- Precast concrete joints
- Stone and masonry façades
- Metal panels and building exteriors
Storage & Packaging
- Application Method: Caulk gun, trowel
- Application Temperature: 40 to 90 °F (4 to 32 °C)
- Chemistry: Silicone
- Coverage Rate: 12 ft @ .5″ x .25″ (10.1 oz)
- Drying/Cure Time: 14 to 21 days
Product Properties
| Property | Value |
|---|---|
| Modulus | Low-modulus |
| Movement Capability | ±50% |
| VOC Compliance | Yes |
| Warranty | Up to 20 years (ASTM C1248 compliant) |
| Color Availability | Standard and custom color matching |
| Certification | GREENGUARD Gold |
For similar medium-modulus applications, see Spectrem 2. For full product documentation, visit Tremco Sealants.
