• Extremely High Movement Capability: +100% / -50% for dynamic joints
• Moisture-Tolerant Application: Bonds to damp or green concrete
• Non-Sag Formulation: Ideal for vertical or overhead joints
• Fast Cure Profile: Skin time 2–3 hrs; tack-free in 6–8 hrs
• Low Dirt Pick-Up: Reduces surface contamination after curing
• UV Stable: Will not crack, yellow, or degrade in sunlight
• Paintable: Compatible with many coatings (verify with adhesion testing)
• Low VOC & Jet Fuel Resistant: Safe for occupied spaces and demanding environments
• Broad Substrate Compatibility: Bonds to concrete, aluminum, masonry, vinyl siding, coated systems
• Immersion & Fire-Rated: Approved for water immersion and fire-rated assemblies

Ideal For: High-movement and high-performance sealant needs in commercial and industrial construction

Typical Uses:

• Expansion and control joints
• Precast panel joints
• Curtain walls and window perimeters
• Door frame seals
• Rough openings and flashing transitions
• Vertical façade joints
• Air barrier and waterproofing terminations
• Water-immersion environments

Compatible Substrates:

• Concrete (green or cured)
• Masonry and CMU
• Aluminum (anodized or primed)
• Vinyl siding
• Wood (clean and dry)
• Plastics and metals (with proper surface prep)
• Nudura ICF systems

Surface Preparation

• Surfaces must be clean, dry, and free of dust, oil, or debris
• Use two-cloth cleaning method: solvent wipe followed by dry cloth
• Minimize contamination from skin oils, dust, or water
• Use Vulkem® Primer #171 for porous substrates if needed
• Use TREMprime® Non-Porous Primer for metals and plastics if required

Priming

• Project-specific adhesion tests recommended
• Prime only if required based on substrate and adhesion testing
• Seal within 6–8 hours (non-porous) or 8 hours (porous) of priming

Joint Design

• Minimum joint: ¼" x ¼"
• For joints ½"–1" wide, depth should be half the width
• Use backer rod or bond-breaker tape to prevent 3-point adhesion
• Follow ASTM C1193 & C1472 joint design standards

Application

• Use standard or sausage caulking guns
• Apply from back of joint forward to avoid air pockets
• Tool immediately using dry tooling – no water, soap, or lubricants
• Do not disturb sealant during cure phase

Curing

• Skin forms in 2–3 hours
• Tack-free in 6–8 hours
• Full cure time depends on joint size, humidity, and temperature
• Allow 2+ weeks for full adhesion development in critical applications