Geocel 4350 Hybrid Metal Roofing and Siding Construction Sealant

Geocel 4350 is a chemically curing hybrid sealant in a gun-grade, non-sag consistency. It adheres to coated steel, aluminum, wood, glass, tile, brick, asphalt shingles, EPDM, fiber cement board, skylights, primed TPO and primed PVC. It is UV resistant, applies in damp or dry conditions and is paintable with latex-based paints.

It seals metal roofing and siding laps, seams, fasteners, joints and valleys, roof penetrations, gutters and trim. It also serves in metal roof restoration and repair work such as sealing fasteners and pipe flashings. It is used inside and outside on most non-traffic-bearing joints.

• Chemistry: hybrid technology, chemically curing
• Standard: ASTM C 920, Type S, Grade NS, use NT, A, M and G
• Consistency: gun grade, non-sag
• Shore A hardness: 27 (ASTM C661)
• Tensile strength: 220 psi (ASTM D412)
• Elongation: 254% (ASTM D412)
• Tear strength: 27 pli (ASTM D624)
• Adhesion (ASTM C794): vinyl 13.0 pli, aluminum 11.1 pli, steel 13.7 pli, Kynar 500 12.0 pli
• Application temperature: 0 to 120°F
• Service temperature: -40 to 200°F
• Shelf life: 18 months
• Paintable immediately after application with latex-based paints
• Joint width: a minimum of 4 times the anticipated movement

• Metal roofing and siding laps, seams, fasteners, joints and valleys
• Roof penetrations such as pipes, vents, stacks, curbing, chimneys, cupolas and pipe boots
• Through-roof penetrations and flashings
• Gutters, downspouts, drip edges and eaves
• Skylights, windows, doors and dormers
• Trim sealant for metal components
• Solar panel installation
• Underdecking installation
• Most non-traffic-bearing joints, inside and outside
• Primer-less application to brick, concrete, metal, glass, treated and untreated wood, asphaltic materials and vinyl

Not for traffic-bearing surfaces, areas where food is stored or processed, or potable water applications.

1. Joint surfaces must be dry, clean and free of all contamination.
2. Wipe glass, metal and other non-porous surfaces clean with solvent so they are free of any coatings.
3. Sand blast or mechanically abrade precast panels that used form-release agents other than polyethylene film, then blow or brush them free of dust.
4. Keep joint depth to no more than 3/8 in. Use an open cell backer rod to control joint depth.
5. Install bond breaker tape in shallow joints to prevent three-point contact.
6. Trim the nozzle to between 1/4 in and 3/8 in and puncture the inner foil liner.
7. Place the cartridge in a conventional caulking gun and apply with steady pressure, filling the joint completely.
8. Tool into seams and cracks immediately after application.
9. Remove uncured sealant from the gun and tools by scraping or with solvents. Cured material is removed by cutting with sharp tools or sandpapering.

• Colors: Stonework, Saddle Tan, Desert Sand, Dove Gray, Fawn, Nantucket Gray, Granite, Black, Chestnut, Burnished Slate, Deep Bronze, Buckskin, Crimson, Radiant Red, Rustic Red, Countryside Red, Maroon, Hemlock, Evergreen, Fern, Hawaiian Blue, Cobalt Blue, Linen White
• Cartridge: 10.1 fl oz (298 ml), plastic
• Case: 24 cartridges (9.5 lbs.)