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SIKEN — The Independent Export Company of Baolongda Industrial Group
Shandong Silicon New Material Co., Ltd. (SIKEN) is Baolongda Group’s independent export company — not an internal department — selling the strength of a national “Little Giant” manufacturer to contractors, distributors and facade engineers worldwide.

Shandong Baolongda Industrial Group
Founded 2004 in Linqu Chemical Industry Park, Shandong — a national high-tech enterprise integrating 50,000t of high-performance organosilicon new materials and 20,000t of special monomers per year, with upstream synthesis of raw silicone materials.
Shandong Silicon New Material Co., Ltd.
The independent foreign trade subsidiary of Baolongda Group. We sell the group’s full silicone sealant line worldwide — factory-direct quality, OEM & private label, one export window for global buyers.
National “Little Giant”National Specialized & Sophisticated “Little Giant” Enterprise — elite tier of Chinese manufacturers.
Top 10 NationwideRanked among the Top Ten National Construction Sealant Enterprises.
Standards SetterLed drafting of 6 and participated in 2 national & industry standards.
Full-Chain R&DUpstream raw material synthesis + 11 research platforms — CAS, Shandong Univ. & Hangzhou Normal Univ. partnerships.
Aerospace-GradeProducts certified for aerospace, weaponry & medical device applications.
Own FactoryIn-house production in Linqu Chemical Industry Park — quality & environment management system certified.
✓ Shandong Manufacturing Single Champion
✓ Shandong Gazelle (Model) Enterprise
✓ Shandong Invisible Champion Enterprise
✓ China Fluorosilicone Industry Innovation Award
✓ Outstanding Enterprise — 30 Years of China Curtain Wall Industry
✓ “12th Five-Year” Outstanding Private Enterprise (Petrochemical)
✓ Shandong Famous Trademark
✓ Shandong May Day Labor Award
✓ Weaponry Equipment Management System Certified
Factory Direct. Group Backed. Export Ready.
Structural silicone, MS polymer & weatherproof sealants for curtain walls and facades — OEM / private label available.
Certifications and Test Reports
Every certificate below is held by our manufacturer, Shandong Baolongda Industry Group Co., Ltd (unified social credit code 91370724761861075L), whose production site in Linqu, Weifang, Shandong is the single source of SIKEN sealants. We publish the certificate numbers and validity dates so buyers can verify them directly with the issuing body.
| Certificate / Report | Standard | Number | Issuer | Valid or issued |
|---|---|---|---|---|
| Quality Management System | GB/T 19001-2016 / ISO 9001:2015 | 46923QGQCR0358S-3700 | GQC — Cathay Certification (Shandong) | 2023-08-31 to 2026-08-30 |
| Environmental Management System | GB/T 24001-2016 / ISO 14001:2015 | 47023EGQCR0358S-3700 | GQC — Cathay Certification (Shandong) | 2023-08-31 to 2026-08-30 |
| Occupational Health and Safety | GB/T 45001-2020 / ISO 45001:2018 | 47123SGQCR0358S-3700 | GQC — Cathay Certification (Shandong) | 2023-08-31 to 2026-08-30 |
| CE Verification of Conformity | CPR EN 15651-1 / -2 / -3 / -4:2017 | ICR/VC/HM230993 / S/N 006419 | ICR Co., Ltd | 2023-09-26 to 2028-09-25 |
| CE Verification of Conformity | CPR EN 15651-1 / -2:2017 | ICR/VC/HM230655 / S/N 005501 | ICR Co., Ltd | 2023-06-21 to 2028-06-20 |
| REACH SVHC screening | SVHC below 0.1% (w/w) | SGS TAOEC24003858803 | SGS-CSTC | 2024-06-12 — PASS |
| REACH SVHC screening (BLD-880 series) | SVHC below 0.1% (w/w) | SGS TAOEC2307557201 | SGS-CSTC | 2023-10-23 — PASS |
| RoHS | EU 2011/65/EU | SGS TAOEC24003858801 | SGS-CSTC | 2024-06-12 — Pass |
| TSCA compliance | TSCA Section 6(h) five PBT chemicals | GNBC240402166EN | Ningbo GIG Testing | 2024-04-10 — PASS |
What each certificate covers
- ISO 9001:2015 — quality management applied to the production of silicone and modified silicone sealants, as well as structural silicone sealants for construction.
- ISO 14001:2015 — environmental management across the same production scope.
- ISO 45001:2018 — occupational health and safety management at the same site.
- CE Verification of Conformity under CPR EN 15651 — covers sealants for facade elements (-1), glazing (-2), sanitary joints (-3) and pedestrian walkway joints (-4), depending on the certificate.
- REACH SVHC screening — SGS confirmed that substances of very high concern remain below the 0.1% (w/w) threshold.
- RoHS — restricted substances including lead, mercury, cadmium, hexavalent chromium and phthalates.
- TSCA — the five persistent, bioaccumulative and toxic chemicals listed under TSCA Section 6(h).
Original certificates and complete test reports are available on request for tender submissions and distributor onboarding.
Research and patents
Adhesion and durability in a sealant are decided by the chemistry behind it, not by the cartridge. Our manufacturing group holds invention patents on the intermediates used in its sealant formulations, including two that directly govern bonding performance:
| Patent | Subject | Patent number | Granted |
|---|---|---|---|
| Invention patent | Hydrolysis-resistant coupling agent and its preparation method | ZL 2022 1 1501041.X | 2023-07-28 |
| Invention patent | Stainless steel adhesion promoter, its preparation and application | ZL 2021 1 0271285.2 | 2022-05-20 |
The hydrolysis-resistant coupling agent addresses the failure mode that limits sealant life in humid and marine climates: the bond line absorbing moisture and losing adhesion over time. The stainless steel adhesion promoter is what allows the sealant to hold on stainless and coated metal surfaces where conventional silicone needs a primer.
Patent certificates are held by Shandong Baolongda Industry Group Co., Ltd and copies are available on request. Further patents and utility models covering formulation and cartridge design are held under the same group.
Transport classification
Sealant looks harmless until a forwarder asks for a dangerous goods declaration. Our silicone sealant range has been formally assessed for sea freight, and the result removes that step entirely.
| Item | Detail |
|---|---|
| Report | Hazard Classification and Identification Report for Transport of Goods |
| Report number | 202600634737042 |
| Issued by | Shanghai Research Institute of Chemical Industry Testing Co., Ltd (SICIT) |
| Standard applied | IMO International Maritime Dangerous Goods (IMDG) Code, 2024 edition |
| Sample | Silicone sealant, sealant, silicone adhesive |
| Issued to | Shandong Junyuan New Materials Co., Ltd (report applicant). Shandong Siken New Materials Co., Ltd is a cooperation partner of Junyuan and is authorised to use this report for the SIKEN silicone sealant range. |
| Issue date | 2026-01-14 |
| Conclusion | Not subject to the IMDG Code — may be handled as general cargo. Packing group: none. |
| Verification code | 324174 |
What was ruled out
- Not classified as explosives
- Not classified as flammable substances
- Not classified as oxidizing substances or organic peroxides
- Not classified as toxic or infectious substances
- Not classified as radioactive material
- Not classified as corrosives
- No other dangerous properties identified
What this means in practice: no dangerous goods surcharge, no IMDG declaration to prepare, and standard container loading. The report is included with shipping documents on request, and the verification code above allows the issuing body to confirm authenticity.
This identification covers sea transport under the 2024 IMDG Code and applies to the silicone sealant, sealant and silicone adhesive products listed in the report.