Dr. Fixit Bitufix (Bitumen Adhesive): Cold-Applied Bonding for Membranes and Boards
For demanding waterproofing and insulation projects where heat application is impractical or unsafe, Dr. Fixit Bitufix provides a reliable, cold-applied solution. This is a ready-to-use, bituminous adhesive formulated to bond a wide range of materials, including bituminous membranes, protective layers, and thermal insulation boards, to concrete, masonry, and metal surfaces.
Unlike traditional hot-melt bitumen, Dr. Fixit Bitufix (Bitumen Adhesive) eliminates the need for heating equipment, making application safer, faster, and simpler. It cures to form a tough, flexible, and waterproof bond, providing long-term reliability in specialized construction and industrial applications.
Why Choose Dr. Fixit Bitufix (Bitumen Adhesive)?
This cold-applied adhesive simplifies complex bonding tasks on roofs and basements:
- Cold Application: Eliminates the dangers and complexity associated with heating bitumen, improving site safety and speeding up the process.
- Strong Adhesion: Exhibits excellent bonding strength to common substrates like concrete, brickwork, metal, and wood.
- Waterproof Bond: The cured bituminous film is inherently waterproof, contributing an extra layer of protection to the overall waterproofing system.
- Versatile Bonding: Primarily used for sticking asphalt membranes (felts), vapor barrier sheets, and rigid insulation boards (like expanded polystyrene/EPS).
Key Features of Dr. Fixit Bitufix
- Ready-to-Use: Supplied in a paste form, ready for application by trowel or brush.
- High Flexibility: The cured product is flexible and accommodates minor structural movements without cracking the bond.
- Durable: Resistant to mild chemicals and biological growth common in underground or roof applications.
- Economical: A cost-effective solution for large area coverage bonding jobs.
Recommended Application Areas
This **bitumen adhesive** is ideally suited for:
- Roofing: Bonding glass fiber felts, asphalt felts, and other bituminous sheets to concrete roofs.
- Basements: Adhering bituminous membranes to retaining walls and foundation structures.
- Thermal Insulation: Fixing EPS, XPS, and other rigid insulation boards onto horizontal and vertical surfaces.
- Vapour Barriers: Securing various types of vapour barrier membranes in construction assemblies.
Technical Specifications: Dr. Fixit Bitufix (Bitumen Adhesive)
| Feature | Details |
|---|---|
| Brand | Dr. Fixit (Pidilite) |
| Product | Bitufix (Bitumen Adhesive) |
| Type | Cold-Applied Bituminous Adhesive |
| Application Temp. | 5°C to 35°C |
| Form | Thick Black Paste |
| Coverage | Varies (approx. 0.5 – 1.0 kg per sq. mtr depending on application) |
How to Apply Dr. Fixit Bitufix (Bitumen Adhesive) (Step-by-Step)
- Surface Preparation: The surface must be clean, dry, and free from loose material, dust, oil, and grease. Any porous concrete surface should be primed with a thin bitumen solution (like diluted Bitufix) if necessary.
- Application: Apply Dr. Fixit Bitufix uniformly onto the substrate using a notched trowel or stiff brush. The thickness depends on the material being bonded; typically 1-2mm.
- Bonding Membranes: For membranes, lay the sheet immediately onto the wet adhesive, pressing firmly to remove any trapped air and ensure full contact.
- Bonding Boards: For insulation boards, apply the adhesive either by trowel to the substrate or by dabs/beads directly onto the board and press into place.
- Curing: Allow the bond to cure completely before applying subsequent layers or backfilling. Protect the area from foot traffic until the bond is fully set. Proper application is key to prevent membrane failure.
Frequently Asked Questions (FAQ)
Q: Is Dr. Fixit Bitufix flammable?
A: Yes, being a solvent-based product, it is flammable during application. Ensure adequate ventilation and keep away from open flames and sparks.
Q: Can I use this on vertical walls?
A: Yes, it is suitable for vertical application for bonding membranes or boards, provided the surfaces are clean and well-prepared. Use temporary supports if necessary for heavy boards.
Q: How long does it take to dry?
A: Initial tack develops within an hour, but full cure and maximum bonding strength can take several days, depending on ambient temperature and humidity.
Q: Can I dilute this product?
A: Generally, it is used as supplied. If thinning is necessary for priming porous substrates, use a recommended petroleum solvent specific to bitumen products (consult the technical datasheet).
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