Weidun®LQ003 Polyurethane Water-Based Liquid Membrane

Weidun®LQ003 Polyurethane Water-Based Liquid Membrane
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Suitable for both indoor and outdoor applications. Rich color options providing strong decorative aesthetics. Eco-friendly, low VOC, easy application by roller/brush. Available guarantee of up to 15 years.

Top:
Fine Sand
Middle:
Bitumen with polyester Reinforced Mat
Bottom:
Substrate
  • Specially formulated modified asphalt gives a lasting performance.
  • Easy to apply by torching.
  • Available guarantee of up to 20 years.

Application Areas

  • Substrate Preparation, Priming, Torching Equipment,
  • Installation, Bonding, Storage,

Product Highlights

Features & Benefits

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Superior Durability

Strong, durable and manufactured to consistent dimensions

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Lasting Value

Enjoy a zero-maintenance with a 20-year warranty for the quality you can trust

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OEM Available

Offer superior performance based on your region's unique climate needs

Product Details

Weidun®LQ03 Polyurethane Water-Based Liquid Membrane is a water-based liquid products.​

lt is safe and environment-friendly, highly cost-effective and widely used to waterproof non-exposed roofs and indoor areas.​

Advantages
  • Excellent waterproofing and immersion
  • Weather resistant and high elongation
  • Environmental friendly
  • Single component, ease of apply
Uses

Weidun®LQ03 Polyurethane Water-Based Liquid Membrane is designed for areas that need to be waterproofed such as toilet, bathroom, non-exposed roof and etc

Storage and Handling

To prevent damage, store liquid emulsion and cement in a clean, dry location, covering as necessary to protect from environment damage.
Monitor environmental conditions during storage, handling, and application.

Technical Data Sheet

Property Standard Minimum Value Weidun Value
Solid content (%) 65 67
Surface dry time (%) 4 2.8
Through dry time (hour) 8 6
Tensile Strength at 23°C (MPa) 1.0 1.0
Elongation at 23°C ±2°C (%) 300 324
Low temperature flexibility at -10°C No crack No crack
Water penetration (1.5 bar for 7 days) Non-penetration Non-penetration

Product Specifications

Parameter Value
Bucket Size 254.3 L
Bucket Height 34.0 cm
Bucket Diameter 27.0 cm
Bucket Weight 20 kg
Full Pallet Weight 1.2 ton
Product Application Processes

Weidun®LQ003 Polyurethane Water-Based Liquid Installation Guide

Versatile water-based polyurethane coating suitable for both indoor and outdoor use. Available in vibrant colors to combine decorative appeal with waterproofing.

More About Installation
Weidun®LQ003 Polyurethane Water-Based Liquid Installation Guide
FAQ’s

Frequently Asked Questions

Clear, honest answers about how our Product.

Where is water-based polyurethane waterproofing commonly used?
Water-based polyurethane waterproofing is commonly used for indoor waterproofing and other applications where a neat finished appearance is desirable. After curing, it forms a smooth membrane that can provide both waterproofing performance and a visually clean decorative effect, depending on the selected system.
What application method gives the best result for water-based polyurethane waterproofing?
For demanding areas, a reinforced system using one layer of fabric with three coating applications can provide a more reliable result. The reinforcing fabric helps strengthen the waterproofing layer, while multiple coating passes improve continuity and coverage. Application should follow the required consumption and drying intervals.
What is the shelf life and recommended storage condition?
The product should be stored sealed in a cool, ventilated place at 5°C–30°C and protected from direct sunlight. Under proper storage conditions, the typical shelf life is 6 months. Always check the production date and packaging condition before use.
Does water-based polyurethane have a strong solvent odor?
Water-based polyurethane is designed for water-based application and is generally more suitable for indoor environments than conventional solvent-rich systems. Ventilation should still be maintained during application, and project-specific environmental or indoor-use requirements should be checked against the product documentation.
How should the substrate be prepared before coating?
The substrate should be thoroughly cleaned and should be sound, stable and free of dust, oil, loose material and standing water. Cracks, corners, pipe penetrations and other detail areas should be treated before the main waterproofing layer is applied.

FAQ’s

Most Asked Questions