Porous Substrate Sealing and Bonding Primer

Name: Porous Substrate Sealing and Bonding Primer
Brand: Shanghai Languan New Building Materials Co., Ltd
SKU: 1997836821

Shanghai, ChinaShanghai Languan New Building Materials Co., Ltd

US$24.00

200 Bucket

Sample price:US$10.00/bucket.Request sample

Product profile

Customization

Available

Appearance

Liquid

Color

White

Model NO.

LG690

Function

Bond Enhancement, Dust Proofing, Pore Sealing

Type

Water-Based Primer / Interface Agent

Drying Time

Surface Dry in 1-3 Hours at Normal Temperature

Product Type

Water-Based Interface Primer

Coverage

Approx. 50-300 G/M²

Dilution Ratio

1:1-1:3 or Undiluted

Transport Package

Pallet

Specification

20KG/ bucket

Trademark

LanGuan

Origin

China

Key features

Dual Function - Interface Hardener & Pore Sealer: Closes capillary pores on porous substrates (concrete, aerated block, brick) to prevent air bubbles and delamination, while creating a strong bondin

Water-based Eco Formula: Solvent-free white synthetic material, low VOC, non-toxic and odourless. Safe for indoor construction on walls, floors and ceilings in both commercial and residential projec

Wide Substrate Coverage: One product works on concrete, cement mortar, aerated blocks, red brick, gypsum board, cement fibreboard and wood compression board - no need for separate primers per substr

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: ≤2.22h

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 is the drying time for LANGUAN 690 interface hardener?

Surface dry within 1 to 3 hours at normal temperature (20 to 25 degrees C). Full curing before applying subsequent layers takes about 12 to 24 hours, depending on substrate porosity and dilution ratio.

Q:What substrates can LANGUAN 690 be applied to?

690 is designed for porous and absorbent substrates including concrete, cement mortar, aerated blocks (AAC), red brick, gypsum board, cement fibreboard, and wood compression board. It is NOT intended for non-absorbent smooth surfaces such as polished tile or epoxy - for those surfaces, please refer to our model 670.

Q:What is the coverage and dilution ratio?

Coverage depends on the application purpose: 1. As interface bonding agent (diluted 1:3 with water): about 50 g/m2 2. For sealing dense concrete pores (diluted 1:1): about 150 g/m2 3. For dense non-porous substrates (diluted 1:1.5): about 200 g/m2 4. Undiluted on wooden boards: about 300 g/m2 Pack size: 20L plastic pail. One pail covers approximately 350 to 400 m2 when used as an interface agent at 1:3 dilution.