What certifications do you hold?

K28 complies with JCT985-2017; our plants hold ISO 9001/14001/45001, CE marking, and national green building material certification. COA provided per shipment.

Can you provide OEM packaging with our brand?

Yes - custom packaging, private labeling, multilingual manuals (English, Arabic, French, Spanish, Portuguese, Russian), and formulation adjustments for regional climates.

High Strength Self Leveling Cement Floor Leveling Compound

Name: High Strength Self Leveling Cement Floor Leveling Compound
Brand: Shanghai Languan New Building Materials Co., Ltd
SKU: 1997042961

Shanghai, ChinaShanghai Languan New Building Materials Co., Ltd

US$7.00

200 Bags

Sample price:US$0.00/set.Request sample

Product profile

Customization

Available

Application

Commercial Construction, Decorative Concrete, Industrial Construction, Residential Construction

Color

Gray

Model NO.

K28

Setting Time

Normal-Setting

Special Additives

Fiber-Reinforced, Shrinkage-Reducing

Type

Ready-Mix Concrete

Recommended Thicknessrecommended Thickne

2-10 mm Per Layer

Consumption Reference

About 1.7 Kg/M²/mm

Compressive Strength

>=45 MPa After 28 Days

Flexural Strength

>=8 MPa After 28 Days

Fire Resistance

Transport Package

Bag

Specification

25kg/bag

Trademark

Lan Guan

Origin

China

Key features

>= 45 MPa Compressive Strength: 28-day strength reaches >= 45 MPa - over double standard leveling mortars (~20 MPa) - making K28 ideal for commercial and light-industrial floors that demand a durable.

Single-Component, Just Add Water: factory-batched powder needs only clean water on site, eliminating the mixing-ratio errors and quality variation common with two-component systems.

Self-Leveling Flow, 60% Less Labor: flows to a flat finish with minimal troweling; a 2-3 person crew covers 200-500 m2day versus 50-80 m2 by manual screeding.

Fast Track, Walkable in 4-6 h: ready for floor coverings in 24-48 h, completing the screed-to-finish cycle in 2-3 days instead of the 7-14 days required by wet screed.

Low Consumption ~1.7 kg/m2/mm: one 25 kg bag covers 3-5 m2 at 4 mm thickness, lowering total installed cost versus lower-grade products needing more bags.

Crack-Resistant Formula: polymer-modified with controlled shrinkage for a dense, delamination-free layer that resists surface crazing under curing and light load.

Bonds to Concrete, Tile & Screed: compatible with LG660 (absorbent) / LG670 (non-absorbent) primers for diverse substrates, simplifying contractor inventory.

Zero VOC, A1 Fire Rating: non-combustible cement-based system, safe for hospitals, schools, and high-rise where fire codes demand non-combustible subfloors.

Company profile

High Repeat Buyers ChoiceFast DeliveryFull CustomizationQuality Assurance

Shanghai Languan New Building Materials Co., Ltd

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.41h

AI-Powered supplier vetting

SummaryShanghai Languan New Building Materials Co., Ltd. is described as a developer, manufacturer, and seller of environmentally friendly building decoration materials. Its stated scope covers building materials, floor-related solutions, machinery and equipment, hardware, chemical products, communication equipment, and import/export and technical services. The supplier reports OEM service for well-known brands, quality assurance, documented complaint-handling and corrective-action procedures, and facilities including mixing, self-leveling, and automatic packaging lines. However, it has no available SDK, no stated AI-based decision-management practice, no inventory capability, no overseas warehouse or showroom, and no valid manufacturing-capacity contract with affiliated subcontractors. Financial information is limited to years identified as 2021–2023 without performance values. Certification, customer cases, and detailed customization evidence are not sufficiently documented.

Supplier typeThe supplier is presented as Shanghai Languan New Building Materials Co., Ltd., focused on R&D, production, and sales of environmentally friendly building decoration materials. Its business scope includes building materials, insulation materials, sealing fillers, cement products, machinery, hardware, chemical products, and related sales and import/export activities, supporting classification as a building-material manufacturer and supplier.

After-Sales capabilityThe supplier reports clear procedures and records for corrective and preventive actions and customer complaint handling, and describes providing technical guidance and comprehensive customer services. However, it lacks overseas warehouse and showroom capabilities, so the evidence supports structured service handling but not broad overseas after-sales infrastructure.

R&D capabilityThe company describes R&D activity and the ability to develop new materials using existing technology, and its culture emphasizes innovation. However, it explicitly has no available SDK and has not established an AI model for big-data decision support; these limitations prevent a broad conclusion that its innovation capability exceeds requirements.

Production capacityThe supplier states that it conducts production and lists processing and manufacturing activities, with a mixing line, self-leveling production line, and automatic packaging robot. Quality assurance and documented corrective-action procedures are also reported, although there is no valid contract with affiliated subcontractors and no in-stock capability.

Customization capabilityThe supplier reports OEM services for well-known brands and says it provides solutions for difficult floors, technical guidance, and development of various new materials using existing technology. This directly supports some customization and OEM capability, although the slices do not specify product scope, minimum quantities, lead times, or engineering resources.

Product Q&A

Q:What substrates can K28 be applied on?

Concrete (new/old), ceramic tiles, and cement screeds. Use LG660 primer for absorbent substrates, LG670 for non-absorbent. Suitable for indoor floors.

Q:How strong is K28 compared with standard leveling?

K28 reaches >= 45 MPa at 28 days - over double a typical sand-cement screed (~20 MPa), making it a high-strength yet economical choice for commercial and light-industrial bases.

Q:How soon can I install flooring over K28?

Walkable in 4-6 h, ready for floor coverings in 24-48 h at 20C/60% RH. Cold or humid conditions extend curing.

Q:Is K28 single or two-component?

Single-component powder - just add clean water (24-26%). This avoids the ratio errors of two-component systems and simplifies on-site work.

Q:What is the difference between K28 and K18?

K18 is a two-component high-strength compound (>= 18 MPa) that can serve as a finish layer or over steel. K28 is a single-component leveling enhancer (>= 45 MPa) for economical high-strength underlayment - different positioning, not competing.