Geocel 2300 Product Benefits
- Will not crack
- Asphalt shingle compatible
- Exceptional elongation and flexibility
- Excellent adhesion to many building surfaces, even when damp
- UV resistant
- Resealable, may be applied over itself
- Easily applied, non-stringing formulation
- Available in crystal clear, colors, and specially designed metal roof colors
- Cured sealant is mildew resistant
- Most non-traffic-bearing joints, including those where structural movement or stress is expected.
- Primerless application to brick, concrete, metal, glass, treated and untreated wood, asphaltic materials, and vinyl.
- Where UV resistant material is required.
- Where a paintable sealant is required
- As a trim sealant for a metal components
Asphalt shingles, modified bitumen, coated steel (Kynar 500 based finishes), concrete, vinyl, steel, and other common building substrates.
Composition and Materials:
Geocel 2300 Sealant is based on a proprietary formulation of polymers designed to provide optimum flexibility, adhesion, weather resistance, and durability. Geocel 2300 Sealant retains its flexibility due to the absence of plasticizers, which tend to migrate out causing hardening and reduced durability. Due to the mild solvent blend contained in the sealant, 2300 Sealant is not a flammable liquid according to NFPA liquid guidelines. It is weather and UV resistant. Its clear formulation is literally clear as glass from the moment of application.
- Do not use on traffic-bearing surfaces
- Do not use on extruded polystyrene insulating sheathing (foam board, etc.)
- Do not use on acrylic skylight glazing surfaces
- Do not use in areas where food is stored or processed
- For exterior use only due to odor emitted during cure
- Do not use for portable water applications
Joint Design: For optimum results, joints should be a minimum of 4 times greater than anticipated movement. Minimum recommended joint size is ¼” x ¼”. Maximum joint size should be ½” x 3/8” in depth.
Surface Preparation: Priming is not required unless specified above. For best results, joints should be basically clean and surface dry, although dampness from dew will not interfere with adhesion. Do not use xylene or MEK to clean joints or to remove surface coatings unless surface can be allowed to dry before application of sealant. If the joint is wet with solvent, the sealant will not adhere properly. Use of a dry rag or brush to remove dust, dirt, or other contaminants is recommended. Contamination from curing agents and from releases should be avoided.
Joint Backing: Joint depth should not exceed 3/8”. An open cell backer rod should be used to control joint depth. In shallow joints, a bond breaker tape should be installed to prevent three-point contact.
Application and Tooling: Apply with conventional caulking equipment, filling joint completely. When temperature is below 40˚ F (4.5˚ C), application will be easier if sealant is warmed. When temperature of surface to be sealed exceeds 140˚ F (60˚ C), do not apply sealant until surface cools. A soap solution or a solvent such as Xylene may be used as a lubricant for tooling. Follow manufacturer’s instruction for safe use. Do not allow tooling agents to contaminate open joints.
Painting: Sealant may be painted after 24 hours. If using a relatively inflexible paint, allow sealant to cure for four days before painting. 2300 Sealant may be coated with any latex and most oil-based paints. Some paints may crack when used on dynamic joints. See paint manufacturer’s specifications.
Cleaning: Remove 2300 Sealant from gun and tools before it cures. This may be done by scraping and use of solvents such as MEK (lacquer thinner), Xylol, Toluol, or chlorinated solvents. Cured materials may be removed by cutting with sharp tools. Observe manufacturer’s precautions when using toxic or flammable solvents.
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