Professional Languan-690 Self-Leveling Substrate Sealer Primer

Name: Professional Languan-690 Self-Leveling Substrate Sealer Primer
Brand: Shanghai Languan New Building Materials Co., Ltd
SKU: 2001830431

Shanghai, ChinaShanghai Languan New Building Materials Co., Ltd

US$26.00

1 Bag

Product profile

Customization

Available

Transport Package

Pallet

Specification

20kg/bag

Model NO.

LG690

Trademark

LanGuan

Origin

China

Key features

Water-Based Formula: Easy to apply by brush or roller with minimal environmental impact.

Deep Penetration Sealing: Reduces water absorption by over 90% and minimizes air release from pores.

Versatile Substrate Compatibility: Suitable for concrete, cement mortar, gypsum boards, fiber cement, and more.

Prevents Application Defects: Eliminates bubbles, pinholes, and incomplete hydration in self-leveling floors.

Rapid Surface Drying: Surface dries in approximately 1 to 2 hours under suitable conditions.

OEM and Customization Support: Offers customized labels, private labeling, and flexible customization options.

Long Shelf Life: Approximately 24 months when stored unopened in a cool, dry environment.

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: ≤2.52h

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 is LANGUAN-690 suitable for?

It is suitable for concrete, cement mortar, cement screeds, gypsum boards, fiber cement boards, red brick, and other properly prepared indoor surfaces.

Q:How should the substrate be prepared before application?

The surface must be solid, dry, clean, structurally sound, and free from dust, oil, wax, and loose materials.

Q:What are the recommended dilution ratios?

Use undiluted for wood panels; dilute 1:0.5 for dense substrates; 1:1 for pore sealing; and 1:3 for highly absorbent substrates.

Q:How long does it take for the primer to dry?

Surface drying typically takes 1 to 2 hours under suitable conditions before applying the next coat or self-leveling compound.

Q:Does the product support OEM and private labeling?

Yes, we support standard packaging, customized labels, OEM packaging, private label projects, and bulk orders.