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Use FulasealPRO 840NS for: Sealing joints in cool rooms, refrigeration units, and insulation panels where moisture resistance and a non-skinning sealant are required.
FulasealPRO 840NS is a premium butyl-based sealant designed for professional use in cool room and refrigeration applications. Its non-sagging and non-skinning properties make it ideal for concealed lap joints and areas requiring a durable, permanently plastic seal. Offering excellent adhesion to various substrates, including metals, sandwich panels, and plastics, this sealant provides reliable moisture resistance and long-lasting performance in controlled environments.
Key Features of FulasealPRO 840NS
- Excellent Low Temperature Properties: Maintains flexibility and performance in cold environments, crucial for refrigeration applications.
- Non-Skinning: Ensures a permanently plastic seal, ideal for concealed joints where a surface skin is undesirable.
- Mould and Mildew Resistant: Provides a hygienic seal, essential in environments where mould growth is a concern.
- Excellent Adhesion: Bonds strongly to various substrates, including steel, aluminium, and sandwich panels, ensuring a durable seal.
- Non-Corrosive: Safe for use on metal surfaces without causing corrosion over time.
- Gunnable and Non-Sagging: Easy application with a standard caulking gun, ensuring precise placement without sagging.
Technical Overview
FulasealPRO 840NS is formulated to provide a reliable seal in environments where moisture and temperature control are critical. Its butyl-based composition ensures a permanently plastic seal that resists moisture and remains flexible at low temperatures. This product's non-skinning property is particularly beneficial in concealed joints, preventing surface hardening and maintaining a consistent seal.
Chemical Properties: Butyl-based sealant with excellent moisture resistance and non-skinning characteristics, ensuring a permanently plastic seal.
Application Temperature Range: +5°C to +35°C (41°F to 95°F). Apply within this range for optimal adhesion and sealant performance. Ensure surfaces are within this temperature range for best results.
Application Information
- Required Tools: Standard caulking gun, isopropyl alcohol (IPA), lint-free cloths, wax and grease remover (for heavy contamination).
- Trade-Specific Tips: For metal substrates, lightly abrade the surface before cleaning with IPA to enhance adhesion. Always use the 2-rag wipe method for surface preparation to ensure thorough cleaning.
- Common Issues and Solutions: Ensure surfaces are completely clean and dry to prevent adhesion failures. For heavily contaminated surfaces, use a wax and grease remover before IPA cleaning.
Storage and Shelf Life
- Storage Requirements: Store in a dry area between +5°C and +25°C (41°F and 77°F), away from direct sunlight.
- Shelf Life Information: Indefinite shelf life when stored correctly in unopened packaging.
- Temperature Considerations: Avoid storing in extreme temperatures to maintain product consistency and performance.
Certifications
- Complies with industry standards for cool room and refrigeration sealant applications.
Frequently Asked Questions About FulasealPRO 840NS
Q: Can FulasealPRO 840NS be used in external applications?
A: No, FulasealPRO 840NS is not suitable for applications exposed to weathering and dirt pick-up. Use HB Fuller 770 Sanitary Silicone for external applications.
Q: What surfaces can this sealant adhere to?
A: FulasealPRO 840NS adheres to steel, stainless steel, aluminium, sandwich panels, polystyrene, and most plastics. Pre-testing is recommended for specific plastics.
Q: How do I prepare surfaces for application?
A: Surfaces must be clean, dry, and free of contaminants. Use isopropyl alcohol (IPA) for light contamination and a wax and grease remover for heavy contamination, followed by a final IPA wipe.
Q: Is FulasealPRO 840NS suitable for applications with movement?
A: No, this is a non-elastomeric sealant and is not suitable for applications where joint movement is expected or where there is dynamic stress.
Q: What is the shelf life of this sealant?
A: FulasealPRO 840NS has an indefinite shelf life if stored correctly between +5°C and +25°C in unopened packaging, away from direct sunlight.
Use FulasealPRO 840NS for:
- Cool room construction and sealing.
- Refrigeration unit construction.
- Insulation panel construction.
- Concealed lap joint applications.
Why Use FulasealPRO 840NS:
- Excellent low temperature properties for refrigeration applications.
- Non-skinning formula ensures a permanently plastic seal.
- Mould and mildew resistant for hygienic seals.
- Strong adhesion to various substrates for reliable performance.
- Easy application with a standard caulking gun.
How to apply FulasealPRO 840NS:
- Cut the seal at the top of the cartridge.
- Screw on the nozzle and cut it to the desired bead size.
- Hold the gun at a 45° angle and apply the sealant to one surface.
- Combine the surfaces to seal.
- Clean up excess sealant with mineral spirits.
FulasealPRO 840NS limitations:
- Not suitable for applications with joint movement or dynamic stress.
- Not suitable for external applications exposed to weathering and dirt pick-up.
- Not suitable for applications involving vibration, such as truck bodies or caravans.
- Not paintable.
Safety precautions when using FulasealPRO 840NS:
- Personal Protective Equipment: Wear gloves and eye protection to avoid skin and eye contact.
- Ventilation: Ensure adequate ventilation during application.
- Handling: Store in a dry place below 25°C and keep out of reach of children.
FulasealPRO 840NS can be used on the following substrates:
- Steel (light abrasion recommended for improved adhesion)
- Stainless Steel
- Galvanised Iron
- Aluminium
- Sandwich Panels
- Alucobond
- Polystyrene
- Zincalume
- Fiberglass
- Most plastics (pre-testing recommended)
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