Dr. Fixit Flexi PU 270(I) Solvent Based Polyurethane Water Proofing

About Dr. Fixit Flexi PU 270(I) Solvent Based Polyurethane Water Proofing

 91 000 74051 Dr. Fixit Flexi PU 270(I) A high-performance, solvent-based, one-component, polyurethane waterproofing membrane. It is liquid-applied, cures upon contact with air moisture, and forms a highly flexible, seamless, and elastic protective layer.
Primary Function: To provide a durable, long-lasting, and root-resistant waterproofing barrier for a wide variety of structures, capable of bridging cracks and withstanding significant structural movement.
Key Features & Benefits (from TDS):
Highly Elastic & Flexible: Exceptional elongation (400%) to bridge cracks up to 2mm and accommodate movement.Seamless Membrane: Forms a continuous, joint-free layer, eliminating weak points.Excellent Adhesion: Bonds strongly to most substrates (concrete, metal, asbestos, etc.).Breathable: Allows water vapour to escape from the structure (permeable).Durable: Resistant to water, frost, chemicals, oils, detergents, and plant roots.Wide Temperature Range: Maintains properties from -40C to +80C.Root Resistant: Certified as resistant to plant roots (EN 13948), making it ideal for roof gardens.
Q1: How is this product applied?A: It is typically applied in 2 or 3 coats by roller, brush, or airless spray.Surface Prep: Surface must be clean, sound, and absolutely dry (<5% moisture). New concrete must cure for 28 days.Priming: Absorbent surfaces must be primed with Dr. Fixit Primer PU or Dr. Fixit Pidipoxy MIFP.Application: Apply the first coat. Apply the second coat after 12-18 hours (but within 48 hours).Reinforcement: Reinforce critical areas (corners, joints, pipes) with Geotextile Fabric embedded in the wet coating.Q2: What is the coverage area?A: The total consumption is approximately 1.2 1.5 kg per square meter for a 2 or 3-coat system. Actual consumption depends on surface porosity and application method.Q3: How long does it take to cure?A:Tack-free: 5-6 hours (at 20C, 50% RH)Light foot traffic: 24 hoursFinal cure: 7 daysQ4: Does it need a protective layer?A: Yes, protection is mandatory.For terraces: Protect with a 40-50mm concrete screed (M20 grade) laid over a geotextile separation layer.For roof gardens: Follow the screed with finishing layers (brickbat coba, tiles, etc.).Alternatively, it can be finished with Dr. Fixit PUTC (polyurethane top coat) for UV stability and colour.Q5: Can it be applied on wet surfaces?A: No. Absolutely not. The surface must be completely dry (<5% moisture content). The TDS explicitly warns: "Do not wash surface with water." before application.Q6: What is the shelf life?A: 9 months from the date of manufacture when stored in its original, unopened container in a dry, cool place (5C to 30C), protected from moisture and direct sunlight.Q7: Is it safe? What precautions are needed?A: Caution Required. The product contains isocyanates. During application, you must wear:Protective clothingChemical-resistant glovesEye gogglesAvoid contact with skin and eyes. Ensure adequate ventilation. Always refer to the Material Safety Data Sheet (MSDS) before use.Q8: How does it handle cracks?A: It has excellent crack-bridging capabilities:It can bridge dynamic cracks up to 2mm wide.Larger cracks and joints must be pre-sealed with Dr. Fixit PU Sealant and reinforced with geotextile fabric before the general membrane application.

Advanced Waterproof Protection

Dr. Fixit Flexi PU 270(I) offers industrial-grade, solvent-based polyurethane protection, forming a flexible, high-elongation membrane that adapts to building movements and bridges cracks. Its superior UV resistance ensures durable waterproofing, making it ideal for both indoor and outdoor applications such as terraces, bathrooms, and water tanks.


Easy Application and Quick Drying

Apply Dr. Fixit Flexi PU 270(I) using a brush, roller, or airless spray. The viscous liquid spreads smoothly and achieves surface dryness within 6-8 hours at room temperature. Complete waterproofing effectiveness is attained after a full 7-day curing period, ensuring maximum performance with minimal downtime.