Tremco Dymonic FC is a high-performance, fast-curing, single-component hybrid sealant renowned for its versatility and durability in construction applications. Formulated with proprietary silane end-capped polymer technology, it offers exceptional adhesion and flexibility, making it suitable for a wide range of substrates and joint configurations.
Key Features of Tremco Dymonic FC
- Fast Cure Time: Dymonic FC skins in approximately 60 minutes and becomes tack-free within 3 to 4 hours, significantly reducing dirt pickup and enhancing the aesthetic appeal of the sealant.
- Durable and Flexible: With a movement capability of ±35%, it accommodates dynamic joint movement without compromising the integrity of the seal.
- Excellent Adhesion: The sealant adheres tenaciously to common construction substrates, including concrete, masonry, aluminum, and vinyl siding, often without the need for a primer.
- Paintable Surface: Once fully cured, Dymonic FC can be painted, allowing for seamless integration with surrounding materials and finishes.
- Weather and UV Resistance: Engineered to withstand exposure to the elements, it resists cracking and maintains its performance under UV radiation.
Common Applications
Dymonic FC is suitable for various construction scenarios, including:
- Expansion and Control Joints: Effectively seals joints subject to movement, ensuring long-term performance.
- Precast Concrete Panel Joints: Provides a reliable seal between precast elements, accommodating structural movements.
- Perimeter Caulking: Ideal for sealing around windows, doors, and panels to prevent air and water infiltration.
- EIFS Applications: Compatible with Exterior Insulation and Finish Systems, offering a flexible seal that accommodates system movements.
- Vinyl Siding: Seals joints and gaps in vinyl siding installations, enhancing weatherproofing.
Application Guidelines
- Surface Preparation: Ensure surfaces are clean, dry, and free from contaminants. Remove any existing sealant, grease, or debris to promote optimal adhesion.
- Joint Design: Follow proper joint design practices, ensuring the sealant width-to-depth ratio accommodates anticipated movement.
- Backer Rod Installation: Use a closed-cell backer rod to control sealant depth and prevent three-sided adhesion, which can compromise sealant performance.
- Sealant Application: Apply using standard caulking equipment, filling the joint completely. Tool the sealant to ensure contact with joint walls and achieve a smooth finish.
- Curing Conditions: Allow the sealant to cure under appropriate environmental conditions. Full cure typically occurs within 14 to 21 days, depending on temperature and humidity.
FAQ
1. Is a primer required before applying Tremco Dymonic FC?
Dymonic FC typically adheres well to most common construction substrates without a primer. However, for certain materials like high-performance paints or architectural finishes, conducting a field adhesion test is recommended to determine if a primer is necessary.
2. Can Dymonic FC be painted over?
Yes, once fully cured, Dymonic FC can be painted. It’s advisable to perform a compatibility test with the specific paint to ensure proper adhesion and appearance.
3. What is the movement capability of Dymonic FC?
Dymonic FC accommodates joint movement of ±35%, making it suitable for dynamic joints subject to expansion and contraction.
4. How should excess sealant be cleaned?
Excess uncured sealant can be removed using solvents like xylene or mineral spirits. Once cured, removal becomes more challenging and may require mechanical methods.
5. What are the storage recommendations for Dymonic FC?
Store Dymonic FC in its original, undamaged packaging in a clean, dry location with temperatures between 40°F to 110°F (5°C to 43°C) to maintain its shelf life and performance characteristics.
