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Adheseal PU 25 FC Polyurethane Sealant

Adheseal PU 25 FC Polyurethane Sealant

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Price Per Unit: $10.30

Price Per Box: $9.27

PU 25 FC: A versatile, fast-curing polyurethane sealant with high flexibility and excellent adhesion for diverse construction and industrial applications.
Vendor: Adheseal
SKU: PU25BL/SSG
Availability: In Stock
$10.30
$10.30
Prices do not include GST
Physical Properties
Type of product: Polyurethane
Curing system: Moisture cured
Density (specific gravity): 1.2
Movement capability: +/-25%
Shore a hardness: 25
Chemical resistance: Excellent to water, detergent solutions, diluted acids & alkalis, petrol and oil for short periods.
Sealant classification as per iso 11600: Type f class 25 lm
Sealant classification as per astm c920: Type s, grade ns, t1
Astm c793: Pass: for uv and cold & bend
Astm c794. adhesion in peel: Pass: mortar & aluminium
Astm c719. adhesion & cohesion under cyclic movement: Pass: mortar & aluminium
Astm c510. stain & colour change: Pass
As/nzs 4020: Suitable for contact with potable water
As/nzs 1530.3-1999. simultaneous determination of ignitability: Less than 1
Service temperature: -30ºc to +90ºc
Elongation at break: 600%
Storage: Cool dry between 10ºc and 35ºc
Tack free time: 2hrs @ 23ºc & 60% rh
Cure time: 3mm/24 hrs.
Skin time: 30-40 min
Voc 2010/75/ue isolemfi 50134c mono: <1.5g/l
Shelf life: 12 months in original packaging
Packaging: 600ml sausage / 20 per carton
Colour’s: Grey, white, black
Tensile strength iso 37: 1.1 mpa
Tear strength iso 34: 6.5n/mm
As1530.3 test report 23-000124 awta ignitability index: 0
Spread of flame index: 0
Heat evolved index: 0
Smoke developed index: 0-1
Shipping & Delivery

$15.95 + GST for Australia-wide shipping, excluding DG, oversized, long-length, and bagged items over 15kg. Rural, remote areas and site deliveries are also ineligible. If your order includes any of these, we will contact you to arrange additional freight fees. Online purchases only.

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Adheseal PU 25 FC Polyurethane Sealant
Adheseal
Adheseal PU 25 FC Polyurethane Sealant
$10.30
Adheseal PU 25 FC Polyurethane Sealant
Adheseal
Adheseal PU 25 FC Polyurethane Sealant
$10.30
Size: 600ml
Colour: Black
Package Type: Single Buy
Description  
Use PU 25 FC Polyurethane Sealant for: Movement joints, perimeter sealing, and general construction applications requiring flexibility and fast curing.

Adheseal PU 25 FC is a single-component, moisture-curing polyurethane sealant designed for movement and connection joints in both indoor and outdoor applications. Known for its fast curing and high elasticity, PU 25 FC accommodates movement up to ±25% of the original joint width. This versatile sealant is ideal for diverse applications, including perimeter sealing, expansion joints, and general construction, providing a durable, flexible, and mould-resistant seal. Its exceptional adhesion to common building materials, combined with its potable water safety and low ignitability, makes it a reliable choice for professional trades.

Key Features of PU 25 FC Polyurethane Sealant

  • Fast Curing (FC): Reduces downtime and accelerates project completion, enhancing job site efficiency.
  • High Flexibility (±25% Movement): Accommodates structural movement, preventing cracks and failures in dynamic environments.
  • Potable Water Safe (AS/NZS 4020): Suitable for use in contact with drinking water, expanding application possibilities.
  • Mould and Mildew Resistant: Ideal for humid environments, ensuring long-lasting, hygienic seals.
  • Low Ignitability (AS 1530.3): Enhances safety in fire-prone areas, providing added peace of mind.
  • Excellent Adhesion: Bonds strongly to various substrates, including concrete, metal, wood, and plastics, ensuring reliable performance.

Technical Overview

PU 25 FC is formulated for professional use, offering a Shore A hardness of 25, indicating its flexibility. It cures at a rate of 3mm per 24 hours at 25°C and 50% humidity, ensuring rapid project progression. Its high elongation at break of 600% and tensile strength of 1.1 MPa provide robust performance in demanding conditions.

Chemical Properties: Polyurethane-based sealant with excellent resistance to water, detergent solutions, diluted acids, and alkalis.

Application Temperature Range: 5°C to 40°C (41°F to 104°F), allowing for use in various climatic conditions.

Application Information

  • Required Tools: Sausage gun, spatula, masking tape, Xylene (for cleaning).
  • Trade-Specific Tips: Use a backing rod for deep joints. Apply sealant in a continuous bead for optimal adhesion. Ensure surfaces are clean and dry.
  • Common Issues and Solutions: Bubbling can occur if the substrate is damp or if air is trapped. Ensure proper surface preparation and apply sealant firmly.

Storage and Shelf Life

  • Storage Requirements: Store in a cool, dry place between 10°C and 35°C (50°F and 95°F).
  • Shelf Life Information: 12 months in original packaging.
  • Temperature Considerations: Avoid storing in extreme temperatures to prevent premature curing or degradation.

Certifications

  • AS/NZS 4020 (Potable Water Safe)
  • AS 1530.3 (Low Ignitability)
  • ASTM C793 (UV Resistance)
  • ISO 11600 F 25 LM, ASTM C920
Common Questions  

Frequently Asked Questions About PU 25 FC Polyurethane Sealant

Q: Can PU 25 FC be used for sealing around drinking water pipes?

A: Yes, PU 25 FC is tested to AS/NZS 4020, making it suitable for contact with potable water, ensuring safe use around drinking water pipes and tanks.

Q: How flexible is PU 25 FC?

A: PU 25 FC offers a movement capability of ±25%, allowing it to accommodate significant structural movement without cracking or failing.

Q: Is PU 25 FC suitable for outdoor applications?

A: Yes, PU 25 FC is suitable for both indoor and outdoor applications. It has passed UV testing as per ASTM C793 and resists mould and mildew, making it ideal for external use.

Q: How quickly does PU 25 FC cure?

A: PU 25 FC cures at a rate of 3mm per 24 hours at 25°C and 50% humidity, providing a fast-curing solution for efficient project completion.

Q: What safety precautions should I take when using PU 25 FC?

A: Ensure proper ventilation, wear appropriate PPE (gloves, safety glasses), and avoid skin and eye contact. Refer to the Safety Data Sheet (SDS) for detailed safety information.

Uses & Benefits  

Use PU 25 FC Polyurethane Sealant for:

  • Perimeter sealing of windows and curtain walls.
  • Expansion joints in precast and tilt-up panels.
  • Metal cladding and bolted lap joints.
  • Pavement joints, car parks, and driveways.
  • General construction sealing and adhesion.
  • Floor mouldings and skirting boards.
  • Acoustic ceiling tiles and seam sealing.
  • Aluminium fabrication and fibreglass applications.
  • Vehicular and marine manufacturing.

Why Use PU 25 FC Polyurethane Sealant:

  • Fast Curing: Speeds up project timelines and reduces downtime.
  • High Flexibility: Accommodates movement, ensuring long-lasting seals in dynamic structures.
  • Potable Water Safe: Expands application possibilities to include water-related projects.
  • Mould and Mildew Resistance: Ideal for humid environments, ensuring hygienic seals.
  • Low Ignitability: Enhances safety in fire-prone areas.
  • Excellent Adhesion: Bonds strongly to various substrates, providing reliable performance.
How To Apply  

How to apply PU 25 FC Polyurethane Sealant:

  1. Surface Preparation: Ensure surfaces are sound, clean, dry, and free from contaminants. Prime if necessary, especially for porous substrates or critical applications.
  2. Priming: Apply appropriate primer (Adheseal 50A for non-porous, Everflex Supaprime for porous) and allow to dry for 30 minutes to 2 hours.
  3. Joint Design: Aim for a 2:1 width-to-depth ratio. Use backer rod for joints over 10mm deep and bond breaker tape to prevent three-sided adhesion.
  4. Application: Cut nozzle at 45° for sealant or 90° for adhesive. Apply in a continuous bead, ensuring good contact with both sides of the joint.
  5. Tooling: Tool off with a moistened spatula within 5 minutes. Remove masking tape while sealant is still wet.
  6. Clean-Up: Clean tools and spills with Xylene while sealant is wet. Cured sealant can be removed mechanically.
Limitations and Safety Info  

PU 25 FC Polyurethane Sealant limitations:

  • Not suitable for totally confined spaces due to moisture-curing requirements.
  • Avoid use in aquariums or internal swimming pool applications with high chlorine levels.
  • Not recommended for adhering mirrors or structural glazing without testing.
  • May discolour copper and brass.
  • Avoid contact with materials containing cleaning agents, solvents, or alcohol during curing.
  • Not for use on bituminous, natural rubber, or EPDM rubber surfaces.

Safety precautions when using PU 25 FC Polyurethane Sealant:

  • Personal Protective Equipment: Wear gloves, safety glasses, and respiratory protection in poorly ventilated areas.
  • Ventilation: Use in well-ventilated areas. Avoid inhaling fumes.
  • Handling: Wash hands thoroughly after handling. Avoid skin and eye contact.
  • Storage: Store in a cool, dry place away from direct sunlight and extreme temperatures.
Suitable Substrates  

PU 25 FC Polyurethane Sealant can be used on the following substrates:

  • Masonry: Seals joints in masonry structures.
  • Brick: Fills gaps and joints in brickwork.
  • Metal: Seals joints in metalwork, including aluminium and powder coat.
  • Timber: Seals joints in timber structures.
  • Plastics: Bonds to various plastic surfaces.
  • Stone: Seals joints in stone structures.
  • Painted Surfaces: Adheres to painted surfaces.
  • Rubber: Bonds to rubber materials.
  • Fibreglass: Bonds to fiberglass materials.
  • Porcelain: Seals joints in porcelain surfaces.
  • Waterproof Membranes: Adheres to various waterproof membranes.

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