Self-Leveling Gypsum-Based Mortar Suitable for Commercial Office Backfill

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Product Description

Basic Specifications
Model NO.K30
FunctionMoisture-proof, Wear-resistant
TypePre-mixed Mortar
Compressive StrengthAbout 15-18 MPa (28 Days)
Flexural StrengthAbout 6 MPa (28 Days)
Fire ResistanceA1 Rating
Drying Time24-48 Hours
Specification25kg/bag
Product Description

The Gypsum-based K30 self-leveling compound stands as a testament to cutting-edge engineering prowess. Crafted meticulously from a sophisticated slurry, handpicked fine aggregates, and top-tier polymer spray-dried powder resin sourced from prestigious international brands, it symbolizes superior quality. Further enriched with a spectrum of eco-friendly additives, this compound boasts exceptional self-leveling capabilities, guaranteeing remarkable fluidity and outstanding plasticity.

Application Scope

Discover the limitless potential of our versatile Self-Leveling Mortar with High Performance and 15-18 MPa Strength Assurance. This product is the quintessential solution for an extensive array of applications, including:

  • Home renovation primary leveling tasks
  • Underfloor heating backfill for optimal heat distribution
  • Commercial office backfill with unparalleled robustness
  • Preparing commercial hubs and high-traffic living spaces
Product Advantages
  • High Fluidity: Superior leveling performance for a flawless, smooth finish.
  • Micro-expansion System: Meticulously designed to eliminate shrinkage and accelerate drying.
  • Crack Resistance: Confidently control construction thickness with precision and consistency.
  • Durability: Moisture-proof and resistant to degradation, extending flooring lifespan.
  • Eco-Friendly: Sustainable, pollution-free, and contributes to a healthier planet.
Technical Data
Mixing ratio25kg : 10L - 11L
Dry power densityAbout 1.2kg/L
Drying timeAbout 24-48 hours
Consumption1.2kg/m²/mm
Compressive strength~6 MPa (1 day) / 15-18 MPa (28 days)
Flexural strength~2 MPa (1 day) / 6 MPa (28 days)
Fire resistance ratingA1
APPLICATION THICKNESS

Our premium gypsum-based self-leveling mortar offers adaptable thickness options ranging from a finely-tuned 3mm to a solid 30mm in a single construction phase.

Subfloor Preparation
  • Eliminate oil stains, dust, loose debris, and old coatings.
  • Sand down uneven patches and remove loose concrete.
  • Maintain a dry base, completely free of puddles.
  • Apply appropriate interface agents (LG660 for absorbent or LG670 for non-absorbent surfaces).
Construction Process

1. Priming: Clean the base and apply a suitable primer. Allow 2-6 hours to dry before self-leveling application.

2. Mixing: Add 25kg of compound to 10L of clear water. Mix until lump-free. Spread evenly using a notched trowel to the desired thickness.

3. Finishing: Use a defoaming roller to remove air bubbles before setting. For efficiency, pumps with 20-40 L/min flow rates can be used.

Important Notes
  • Temperature range: 5°C to 30°C with low relative humidity.
  • Follow the water-to-material ratio (41%-44%) with precision.
  • Use mixed material within 20 minutes to prevent premature setting.
  • Avoid skin and eye contact; protect the surface from water and heavy impacts during curing.
Storage & Transportation

Store in a dry, well-ventilated space away from direct sunlight. Handle with care to avoid packaging damage during transport.

Frequently Asked Questions
Q: What is the ideal application thickness for K30 self-leveling mortar? A: The thickness is highly adaptable, ranging from 3mm for fine leveling to 30mm for more substantial backfill requirements in a single application.
Q: How much water should be mixed with one 25kg bag? A: For optimal consistency and strength, mix 25kg of dry powder with approximately 10 to 11 liters of clean water (a ratio of 41% to 44%).
Q: How long does it take for the floor to be ready for use? A: The initial drying time is between 24 and 48 hours. However, full compressive strength (15-18 MPa) is typically achieved after 28 days of curing.
Q: Can K30 be used with underfloor heating systems? A: Yes, K30 is excellently suited for underfloor heating backfill as it ensures uniform heat distribution and high thermal efficiency.
Q: Is the K30 self-leveling compound environmentally friendly? A: Absolutely. It is formulated with eco-friendly additives, is pollution-free, and poses no hazards to the public or the environment.
Q: What should be done if the substrate is very absorbent? A: For absorbent substrates, we recommend applying a water-based absorbent interface treatment agent (like LG660) to ensure proper adhesion and prevent air bubbles.

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