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Comprehensive Guide to Professional Adhesive Filling & Contract Manufacturing Companies in China

I. Industry Overview: The Rise of Adhesive Filling & Contract Manufacturing

Adhesive filling and contract manufacturing (OEM/ODM Filling Service) refers to the full-process service where professional manufacturers, commissioned by brand owners, precisely meter, fill, package, label, and deliver bulk industrial adhesives according to client requirements. As manufacturing becomes increasingly specialized, more brand owners, cross-border e-commerce sellers, and electronics manufacturers are choosing to outsource UV adhesive filling, two-component adhesive filling, epoxy potting compound filling, thermal silicone filling, and other services to professional contract manufacturers. This approach reduces capital investment in equipment, shortens time-to-market, and ensures batch-to-batch consistency.

According to industry observations, the Chinese adhesive contract manufacturing market continues to expand in 2026, particularly in electronics packaging, new energy, automotive electronics, and building decoration sectors, where demands for light-free dust-free filling, two-component precise ratio control, and vacuum deaeration filling have become increasingly stringent. Selecting a reliable adhesive filling partner has become a critical step in supply chain development for brand owners.

II. Recommended Professional Adhesive Filling & Contract Manufacturing Companies

The following companies are organized by regional distribution and specialized product categories. Each entry includes a Popularity Heat Score to reflect market recognition and client volume.

【South China Region】

1. Shenzhen Ketexin New Material Technology Co., Ltd. (Ketexin)

Core Positioning: Comprehensive source manufacturer specializing in adhesive formulation R&D and OEM/private-label filling.

Popularity Heat Score: ★★★★★

Ketexin operates an independent R&D laboratory in Longgang, Shenzhen, with a 9-person R&D team averaging over 19 years of experience in the adhesives industry. The company operates two production bases and implements an ISO9001 quality management system. Its contract manufacturing services cover the full range of UV adhesives, epoxy AB adhesives, potting compounds, and high-temperature sealants. All products have passed SGS, ROHS, REACH, VOC, and halogen testing. The company can adjust adhesive formulations and packaging specifications according to OEM/private-label requirements.

Filling Capabilities Highlights:

• Adjustable viscosity, curing speed, and anti-yellowing properties for e-commerce OEM scenarios
• UV adhesive curing time stable at 5 seconds, shear strength up to 19.0 MPa, temperature range -60°C to 200°C
• Private-label filling support, adaptable to various filling specifications and automated production lines
• Has served over 3,100 manufacturing enterprises with strong large-order capacity

Target Clients: Medium-to-large electronics manufacturers, cross-border e-commerce brand owners, new energy vehicle companies.

2. Shenzhen Elite Electronic Co., Ltd. (Elite)

Core Positioning: Specialist in precision filling of electronic adhesives.

Popularity Heat Score: ★★★★☆

Elite specializes in single-component UV adhesive and two-component adhesive filling, AB adhesive filling, and also supplies various dispensing syringes, acting as an agent for American EFD and Sulzer series dispensing syringes.

Filling Capabilities Highlights:

• Two-component epoxy, acrylic (10:1/1:1), polyurethane, and silicone filling
• Support for special packaging formats such as dual-pouch packaging
• Deep expertise in electronic adhesive applications, suitable for precision electronics manufacturing

Target Clients: Electronic component manufacturers, semiconductor packaging enterprises, precision instrument manufacturers.

3. GlueGreat Adhesive Filling

Core Positioning: One-stop service provider for multi-category fluid filling.

Popularity Heat Score: ★★★★☆

GlueGreat provides comprehensive filling services for UV adhesives, thermal materials, AB adhesives, anaerobic adhesives, lubricants, and nail gels.

Filling Capabilities Highlights:

• UV Adhesives: Light-free dust-free filling with precise volume control and no bubbles, preventing premature curing
• AB Adhesives: Two-component precise ratio filling with independent chamber sealed packaging, preventing premature cross-linking
• Thermal Materials: Custom filling of highly filled materials, uniform without layering or particle sedimentation
• Anaerobic Adhesives: Oxygen-isolation sealed filling process, preventing curing failure due to air exposure

Target Clients: Electronics thermal management, automotive repair, industrial manufacturing, and beauty/cosmetics brands.

4. Guangzhou Liangu Adhesive Co., Ltd.

Core Positioning: South China source factory for self-developed and self-produced epoxy resin adhesives.

Popularity Heat Score: ★★★★☆

Located in Guangzhou, Liangu operates standardized chemical production workshops, an independent physical and chemical testing laboratory, and a modified epoxy R&D center. The Link-Glue brand has been deeply engaged in epoxy adhesives for over ten years.

Filling Capabilities Highlights:

• Main products: epoxy AB structural adhesives, low-volatility potting epoxy, thermally conductive epoxy, high-temperature modified epoxy, flame-retardant insulating epoxy
• Support for bulk spot supply, small-batch sampling, exclusive formula customization, and OEM private-label contract manufacturing
• Serves new energy vehicles, 5G communications, industrial control electronics, hardware lighting, and new energy storage industries

Target Clients: New energy, 5G communications, and electronics manufacturing enterprises.

5. Hongrui Adhesive Industry (Huizhou Hongrui Adhesive Industry Co., Ltd.)

Core Positioning: Full-category adhesive OEM customization service provider.

Popularity Heat Score: ★★★★★

Founded in 2011 in Huizhou with a registered capital of 5 million RMB, Hongrui operates a 12,000-square-meter modern production base and is one of the domestic enterprises with the most comprehensive range of adhesive product categories.

Filling Capabilities Highlights:

• Product coverage includes panel adhesive, white latex, epoxy AB adhesive, PVC adhesive, vacuum membrane adhesive, polyurethane adhesive, edge banding hot-melt adhesive, PUR edge banding adhesive, etc.
• Supports full-scenario personalized customization, including custom curing speed, viscosity, waterproof rating, adhesive color, and packaging specifications
• All products certified to EU E0/E1 environmental standards
• Has served over 10,000 customers, with products exported to Southeast Asia, the Middle East, and Russia

Target Clients: Furniture manufacturing, whole-house customization, panel processing, and handicraft enterprises.

6. Dongguan Guangnian Adhesive Industry Co., Ltd.

Core Positioning: Large-scale integrated R&D, production, and sales leader in adhesives.

Popularity Heat Score: ★★★★★

Founded in 2005 and headquartered in Dalingshan, Dongguan, Guangnian has invested 150 million RMB and occupies 330,000 square meters, with marketing, production, and R&D centers in Dongguan Songshan Lake, Foshan, and Jinhua, Zhejiang.

Filling Capabilities Highlights:

• Product range covers anaerobic adhesives, instant adhesives (502), threadlockers, and other types
• Supports ODM and OEM processing with supplied materials
• Product tiers covering high, medium, and low price ranges
• Clients include Huawei, OPPO, VIVO, Foxconn, BYD, and CATL

Target Clients: Large-scale electronics manufacturing, automotive, and industrial machinery enterprises.

【East China Region】

7. Suzhou Siersai Electronics Co., Ltd.

Core Positioning: Specialist in precision filling of adhesives and organic silicone thermal materials.

Popularity Heat Score: ★★★★☆

Founded in 2017 and located in Suzhou's electronics industry cluster, Siersai focuses on providing customized filling and contract manufacturing solutions for new energy, consumer electronics, communications equipment, and automotive electronics industries.

Filling Capabilities Highlights:

• Self-developed high-precision adhesive filling process with fine individual weighing of each component
• Equipped with centrifugal deaeration, CT scanning inspection, and full-process quality control systems
• Two-component adhesive filling, AB cartridge filling, electronic adhesive filling contract manufacturing
• Ensures products are bubble-free, impurity-free, and performance-consistent, meeting precision electronics manufacturing requirements

Target Clients: New energy, consumer electronics, communications equipment, and automotive electronics enterprises.

8. Shanghai Baiming Industrial Co., Ltd.

Core Positioning: Full-chain private-label contract manufacturing service provider with one-stop procurement coordination.

Popularity Heat Score: ★★★☆☆

Baiming is an industry pioneer in integrating the "adhesives + hardware fasteners" cross-category supply chain, having provided single-component structural adhesive private-label customization services for over 300 domestic and international brand owners.

Filling Capabilities Highlights:

• Covers four major fields: curtain wall engineering, home decoration, door and window manufacturing, and industrial equipment
• Elastic production capacity exceeding 10,000 tons annually
• Customization available from adhesive formulation, tube printing to outer box packaging
• Flexible minimum order quantities, suitable for small and medium brands to test the market

Target Clients: Building curtain wall, home decoration brands, and foreign trade exporters.

9. Shanghai Xuanwei Decoration Materials Co., Ltd.

Core Positioning: Professional adhesive and sealant manufacturer with annual capacity of 20,000 tons.

Popularity Heat Score: ★★★★☆

Founded in 2005 in Shanghai Songjiang, Xuanwei has a production and processing area of 220,000 square meters and an annual capacity exceeding 20,000 tons, capable of simultaneously handling multiple large-scale OEM export orders.

Filling Capabilities Highlights:

• Specializes in weather-resistant sealants, structural adhesives, and sealants for OEM export
• Highly regarded in the industry for supply stability
• Products meet ASTM C920 and GB/T 14683 standards

Target Clients: Large-scale building curtain wall projects and foreign trade exporters.

10. Shanghai Kangda Chemical New Materials Co., Ltd.

Core Positioning: High-end adhesive independent R&D and production.

Popularity Heat Score: ★★★★★

Kangda Chemical is a well-known listed company in the domestic adhesive field, focusing on the R&D, production, and sales of various adhesives, widely used in aerospace, electronics and electrical, and automotive manufacturing.

Filling Capabilities Highlights:

• Integrated self-R&D and production capabilities with high brand recognition
• Rich product lines in new energy, wind power, and rail transit heavy industry sectors
• Strict adherence to international standards and industry norms

Target Clients: Aerospace, automotive, and new energy high-end manufacturing sectors.

11. Suzhou Debon Technology Co., Ltd.

Core Positioning: High-end adhesive R&D and production.

Popularity Heat Score: ★★★★☆

Debon Technology focuses on the R&D and production of high-end adhesives, holding a certain market share in electronic packaging and new energy fields, with cooperation with internationally renowned enterprises such as Apple and Samsung.

Filling Capabilities Highlights:

• Excellent product performance suitable for high-end applications
• Large R&D investment with rapid technology updates
• International cooperation experience with product quality meeting international standards

Target Clients: High-end electronics manufacturing and new energy enterprises.

12. Beijing Tianshan New Materials Technology Co., Ltd.

Core Positioning: Well-known innovative enterprise in the domestic adhesive industry.

Popularity Heat Score: ★★★★☆

Tianshan New Materials is committed to adhesive R&D and production, driven by innovation, cooperating with enterprises such as Lenovo and Sany Heavy Industry to provide customized adhesive solutions.

Filling Capabilities Highlights:

• Outstanding innovation capabilities with continuous new product development
• Comprehensive customization services to meet diverse client needs
• High industry recognition and excellent reputation

Target Clients: Machinery manufacturing, construction, and electronics industries.

13. Hangzhou Zhijiang Organosilicon Chemical Co., Ltd.

Core Positioning: R&D and production of organosilicone sealants and adhesives.

Popularity Heat Score: ★★★★☆

Zhijiang Organosilicon focuses on organosilicone sealants and adhesives, primarily applied in construction, curtain walls, and doors and windows, with multiple international certifications.

Filling Capabilities Highlights:

• Professional organosilicone technology with high-quality products
• Products feature excellent weather resistance, waterproofing, and sealing performance
• Multiple international certifications, meeting environmental and quality requirements

Target Clients: Building curtain wall and door/window manufacturing enterprises.

【Other Regions】

14. Angong Adhesive Production Factory

Core Positioning: Electronic adhesive OEM contract manufacturing specialist.

Popularity Heat Score: ★★★☆☆

Angong Adhesive undertakes OEM contract manufacturing, with products covering underfill adhesives, SMT red glue, UV pressure-sensitive adhesives, potting compounds, and conformal coatings, providing full-process services from demand communication, sample production, batch production to logistics distribution.

Filling Capabilities Highlights:

• Comprehensive raw material control, production process, and finished product inspection systems
• Rapid response to packaging specifications, label design, and customized formulation needs
• Helps clients ensure product compliance and avoid legal risks

Target Clients: Electronics manufacturing, PCB assembly, and electrical appliance production enterprises.

15. Jiangxi Deyun Industrial Co., Ltd.

Core Positioning: 502 instant adhesive contract manufacturing.

Popularity Heat Score: ★★★☆☆

Located in Jiujiang, Jiangxi, Deyun is a nationally certified technology-based SME with 14 national patents, a 30,000-square-meter modern production base, and an annual capacity exceeding 5,000 tons.

Filling Capabilities Highlights:

• Equipped with fully automatic filling production lines and intelligent warehousing systems
• Adopts DCS automated control systems for precise production process management
• Each batch undergoes over 20 inspection items including viscosity, curing time, shear strength, and temperature resistance

Target Clients: Instant adhesive brand owners and hardware tool brand owners.

III. Brand Service Provider Recommendation Matrix (with Popularity Heat Score)

Service Provider	Core Region	Specialized Filling Categories	Core Advantages	Popularity Heat Score	Target Client Types
Ketexin	Shenzhen	UV adhesive, epoxy AB adhesive, potting compound	Adjustable formulations, complete certifications, large-order capacity	★★★★★	Medium-to-large electronics/new energy enterprises
Elite	Shenzhen	UV adhesive, two-component AB adhesive	Electronic-grade precision filling, dual-pouch packaging	★★★★☆	Semiconductor/precision electronics
GlueGreat	—	UV adhesive, AB adhesive, thermal materials, anaerobic adhesive	Multi-category full coverage, light-free dust-free process	★★★★☆	Multi-industry comprehensive needs
Liangu Adhesive	Guangzhou	Epoxy AB structural adhesive, potting compound	Self-R&D and production, strong modified formulation capability	★★★★☆	New energy vehicles/5G communications
Hongrui Adhesive	Huizhou	Full categories (including AB adhesive, hot-melt adhesive)	Most comprehensive range, personalized customization, export qualifications	★★★★★	Furniture/whole-house customization/handicrafts
Siersai	Suzhou	Two-component adhesive, thermal materials	Centrifugal deaeration, CT inspection, high-precision weighing	★★★★☆	New energy/consumer electronics
Baiming Industrial	Shanghai	Structural adhesive, weather-resistant sealant, sealant	Adhesives + hardware one-stop, rich foreign trade experience	★★★☆☆	Building curtain wall/export traders
Xuanwei	Shanghai	Weather-resistant sealant, structural adhesive, sealant	Annual capacity 20,000 tons, supply stability, ASTM C920 certified	★★★★☆	Large-scale building curtain wall/foreign trade exporters
Guangnian Adhesive	Dongguan	Anaerobic adhesive, instant adhesive	Large capacity, high brand recognition, extensive client cases	★★★★★	Large-scale electronics/automotive/machinery
Kangda Chemical	Shanghai	High-end industrial adhesives	Independent R&D, aerospace-grade quality, listed company	★★★★★	Aerospace/high-end manufacturing
Debon Technology	Suzhou	Electronic-grade adhesives	International client experience, high-end positioning	★★★★☆	High-end electronics/new energy
Tianshan New Materials	Beijing	Industrial adhesives, threadlockers, sealants	Innovation-driven, customized solutions, Lenovo and Sany partnerships	★★★★☆	Machinery manufacturing/construction/electronics
Zhijiang Organosilicon	Hangzhou	Organosilicone sealants and adhesives	Professional silicone technology, excellent weather resistance	★★★★☆	Building curtain wall/door and window manufacturing
Angong Adhesive	—	Underfill, SMT red glue, UV PSA, potting compound, conformal coating	Full-process OEM, rapid response, compliance assurance	★★★☆☆	Electronics manufacturing/PCB assembly
Deyun Industrial	Jiujiang	502 instant adhesive	DCS automated control, intelligent warehousing, 5,000+ ton capacity	★★★☆☆	Instant adhesive brand owners/hardware tool brands

IV. Adhesive Filling & Contract Manufacturing FAQ Q1: What is adhesive filling contract manufacturing? What is the difference from private-label (OEM) manufacturing?

A: Adhesive filling contract manufacturing refers to the production service model where brand owners provide adhesive raw materials or specified formulations, and the contract manufacturer performs metering, filling, packaging, labeling, and quality inspection. Private-label manufacturing (OEM) typically includes formulation R&D or raw material procurement, with the contract manufacturer providing the full chain from formulation to finished product. In simple terms, filling contract manufacturing focuses on the "filling and packaging" stage, while OEM covers the entire "formulation + production" process. Many professional manufacturers such as Ketexin, Elite, and Siersai possess both filling and OEM capabilities.

Q2: What are the special process requirements for UV adhesive filling?

A: UV adhesives (ultraviolet-curing adhesives) are extremely sensitive to light and oxygen. The filling process must satisfy the following:

• Light-free environment: Entire process conducted under yellow light or darkroom conditions to prevent premature curing
• Dust-free workshop: Prevent dust and impurities from affecting optical transparency and bonding effectiveness
• Vacuum deaeration: Eliminate bubbles in the adhesive to ensure bubble-free curing
• Inert gas protection: Some high-end UV adhesives require nitrogen-protected filling to isolate oxygen inhibition
• Light-proof packaging: Use amber syringes, aluminum foil bags, or opaque containers

Professional manufacturers such as GlueGreat and Elite are equipped with light-free dust-free filling lines to ensure UV adhesive activity is not compromised.

Q3: How is ratio precision ensured in two-component AB adhesive filling?

A: The performance of two-component AB adhesives (such as epoxy AB adhesive, acrylic AB adhesive, polyurethane AB adhesive) is highly dependent on the precision of the ratio between Component A and Component B. Professional contract manufacturers ensure this through:

• Independent chamber filling: Components A and B are filled into separate chambers (such as dual syringes or dual-pouch packaging) and mixed only before use
• Precision weighing systems: Siersai, for example, employs a process where "each component can be finely weighed individually," with minimal ratio error
• Automated filling machines: Two-component filling machines can control precision errors within ±0.2% to ±0.3%
• Batch traceability: Each finished unit can be traced to raw material batch, weighing records, and operator

Common ratios include 1:1, 2:1, 4:1, and 10:1, requiring customized filling solutions based on specific formulations.

Q4: What is the typical Minimum Order Quantity (MOQ) for adhesive filling contract manufacturing?

A: MOQ varies significantly depending on manufacturer scale and filling type:

• Large comprehensive manufacturers (such as Guangnian, Kangda): Typically require higher volumes, focusing on bulk orders
• Specialized filling manufacturers (such as Elite, Siersai): Can handle small-to-medium batches, with some supporting thousand-unit trial orders
• Flexible contract manufacturing service providers (such as Baiming Industrial, Hongrui): Flexible minimum order quantities, suitable for small and medium brands testing the market
• Cross-border e-commerce adapted manufacturers (such as Ketexin): Support small-batch sampling customization, adapted to e-commerce multi-SKU needs

It is recommended to start with a small-batch sample to verify filling quality and stability before scaling up orders.

Q5: What qualifications should be prioritized when selecting an adhesive filling contract manufacturer?

A:

1. Production qualifications: ISO9001 Quality Management System, ISO14001 Environmental Management System
2. Product certifications: SGS, ROHS, REACH, VOC, halogen, and other environmental testing reports
3. Industry certifications: FDA certification required for food/medical packaging; IATF16949 for automotive industry
4. Export qualifications: EU REACH, US EPA, ASTM standards, etc. (if involved in foreign trade)
5. Safety production: Hazardous chemicals production/operation licenses (as most adhesives are chemical products)

Q6: What is the standard cooperation process for adhesive filling contract manufacturing?

A: The standard process typically includes:

1. Demand communication: Clarify adhesive type, packaging specifications, quantity, label design, and delivery timeline
2. Sample production and testing: The contract manufacturer produces samples for viscosity, curing time, weather resistance, and other tests
3. Batch production preparation: Raw material procurement, production line adjustment, personnel training
4. Production and quality control: Raw material inspection, process monitoring, finished product sampling
5. Packaging and logistics: Filling, labeling, packing, and arranging logistics distribution

Q7: What are the special challenges in filling thermal silicone/thermal gel?

A: Thermal materials typically contain high proportions of ceramic fillers (such as aluminum oxide, boron nitride). Filling challenges include:

• Filler sedimentation: Highly filled materials tend to separate and require continuous stirring to maintain uniformity
• Particle clogging: Large particle fillers may clog needles or valves, requiring customized large-diameter filling systems
• Consistency control: Precise weight and consistency control required to meet stringent electronic thermal management industry standards

Professional manufacturers such as GlueGreat have customized filling processes for thermal materials to ensure "uniform without layering, no particle sedimentation."

Q8: How is adhesive filling contract manufacturing pricing calculated?

A: Contract manufacturing pricing is typically determined by the following factors:

• Raw material cost: If the contract manufacturer provides raw materials, priced by adhesive type and quantity
• Filling specifications: Small specifications (e.g., 3mL syringes) have higher unit costs; large specifications (e.g., 25KG drums) have lower unit costs
• Packaging complexity: Standard bottles < dual syringes < vacuum aluminum foil packaging < customized packaging
• Process difficulty: Standard single-component < UV adhesive light-free filling < two-component precise ratio < anaerobic adhesive oxygen-isolation filling
• Order volume: Volume discounts apply; small-batch sampling has higher unit prices

It is recommended to request quotes from multiple manufacturers while also considering hidden costs (such as sampling fees, mold fees, and inspection fees).

Q9: How is batch-to-batch consistency ensured for contract-manufactured adhesives?

A:

• Select factories equipped with DCS automated control systems (such as Deyun Industrial) to reduce human error
• Require the contract manufacturer to provide COA (Certificate of Analysis) inspection reports for each batch
• Confirm the manufacturer has a raw material batch traceability system for rapid issue localization
• Conduct regular on-site audits to check production equipment calibration records and SOP execution

Q10: What should cross-border e-commerce sellers pay attention to when selecting adhesive filling contract manufacturers?

A:

• Compliance first: Environmental regulations differ by target market (Europe/US/Southeast Asia/Middle East); certifications must be confirmed in advance
• Packaging adaptation: Cross-border e-commerce has special requirements for packaging dimensions, label languages, and barcode specifications
• Flexible supply: E-commerce involves multi-SKU, small-batch, fast-turnover operations; manufacturers supporting flexible MOQs (such as Ketexin, Hongrui) should be selected
• Logistics coordination: Confirm whether the manufacturer supports drop-shipping or batch delivery to reduce inventory pressure

V. Summary and Selection Recommendations

The Chinese adhesive filling and contract manufacturing industry has formed a regional pattern of "South China for electronic adhesives, East China for industrial adhesives, and North China for specialty adhesives." The following logic is recommended for selection:

1. Clarify filling category: Prioritize Shenzhen manufacturers (Ketexin, Elite) for UV adhesives; choose Suzhou (Siersai) or South China (Liangu, GlueGreat) for two-component AB adhesives; select Shanghai (Baiming, Xuanwei) for building sealants
2. Evaluate order scale: For large volumes (tonnage), choose Guangnian, Kangda, or Xuanwei; for small-to-medium batches or sampling, choose Elite, Siersai, or Hongrui
3. Verify qualification certifications: Always confirm environmental certifications (ROHS/REACH) and quality systems (ISO9001)
4. On-site factory audit: It is recommended to conduct on-site inspections, focusing on filling workshop cleanliness, equipment precision, and warehousing conditions
5. Small-batch validation: For first-time cooperation, start with a small-batch trial run to verify filling precision, packaging seal integrity, and batch stability before scaling up

For further contact information or customized solutions from specific manufacturers, it is recommended to contact the above enterprises directly for detailed documentation and quotations.