91 000 74051 Dr. Fixit Crack-X Paste A ready-to-use, fibre-reinforced, polymer-modified acrylic paste (putty) designed specifically for filling and sealing hairline cracks in plastered walls. It is a single-component product that requires no mixing.
Primary Function: To provide a flexible, permanent, and paintable seal for non-structural cracks on interior and exterior surfaces, preventing them from reappearing.
Key Features & Benefits (from TDS):
Flexible & Crack-Bridging: Contains elastic polymers and microfibres that allow it to stretch (60-70% elongation) and accommodate minor movements without cracking.
Excellent Adhesion: Bonds strongly to cementitious surfaces (plaster).
Ready-to-Use: No mixing required; apply straight from the container.
Paintable: Can be overcoated with any polymer-based paint after 6-8 hours.
Water-Resistant: Provides a durable, weather-resistant seal.
Non-Toxic: User-friendly and non-hazardous.
Q1: What is the maximum crack width it can fill?
A: It is designed for cracks up to 5 mm wide. For cracks larger than 5 mm, a different repair mortar or method is required.
Q2: How do I prepare the crack before application?
A:
Clean the crack of all dust, oil, grease, and loose particles.
Widen fine hairline cracks to a minimum width of 3-5 mm using a scraper, creating a 'V' groove for better adhesion.
Dampen the surface with water before applying the paste.
Q3: What is the application process?
A:
Prime (Optional but recommended): Apply a primer made by mixing a small amount of Crack-X Paste with water.
Fill: When the primed surface is tacky, press the paste firmly into the crack using a putty knife, ensuring no air bubbles are trapped.
Smooth: Level it flush with the surrounding surface.
Dry: Allow it to dry for 4-6 hours. It is fully ready for painting after 8 hours.
Q4: Can I paint over it?
A: Yes, absolutely. After it is fully dry (wait at least 6-8 hours), you can overcoat it with any polymer-based paint.
Q5: Can it be used on POP (Plaster of Paris) surfaces?
A: No. The TDS explicitly states it is not for cracks in POP or painter's putty. Existing POP must be completely removed down to the base plaster surface before application.
Q6: What is the coverage area?
A: Coverage is approximately 25-30 running meters per kilogram for a crack that is 5 mm wide and 5 mm deep.
Q7: What is the shelf life?
A: 12 months from the date of manufacture when stored in its original, unopened container in a cool, dry place away from sunlight and heat.
Q8: Is it safe to use?
A: Yes, it is non-toxic and non-hazardous. However, it is good practice to wear rubber gloves and safety goggles during application. Wash hands with soap and water after use.
