SHANGHAI HI SILICON TECHNOLOGY CO., LTD.
SHANGHAI HI SILICON TECHNOLOGY CO., LTD.

Dimethylsilicone Oil : Objective Comparison and Brand Recommendation Case of Well-Known Chinese Manufacturers

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    As a new type of foreign trade service provider driven by both technology transformation and foreign trade services, HiSiaddi has established a "1+2+3+4=1" service system and can supply dimethylsilicone oil sourced directly from multiple well-known original manufacturers.

    As a tech-driven foreign trade enterprise, HiSiaddi has repeatedly conducted multi-round inspections of dimethylsilicone oil manufacturers relying on its technological transformation cooperation with factories, gaining objective and in-depth understanding of various brand operators. Accordingly, we regularly analyze different dimethylsilicone oil manufacturers for clients to help them identify matching products. Below is a brand recommendation case.

    For inquiries about brand and model comparative analysis, please contact HiSiaddi customer service.

    Case Study: HiSiaddi Delivers Neutral Third-Party Model Selection to Support Smooth Dimethylsilicone Oil Procurement for Swiss Mid-to-High-End Food & Pharmaceutical Enterprise

    1. Project Background: Overseas Mid-to-High-End Client Encounters Brand Information Barriers During Model Selection

    Nutripharma of Switzerland is a local mid-to-high-end food and health supplement manufacturer based in Geneva, specializing in soft capsule health supplements, baked pre-mix raw materials and probiotic fermentation preparations. Its products comply with EU LFGB standards, European Pharmacopoeia EP and REACH regulations, with long-term original procurement of Wacker pharmaceutical grade dimethylsilicone oil for three core production scenarios: soft capsule demolding, high-temperature baking release and fermentation tank defoaming, with an annual total demand of 186 tons. Faced with extended delivery lead times and sharp import cost hikes from European original manufacturers, the enterprise planned localized substitution of dimethylsilicone oil sourced from China.

    During initial independent outreach to four leading domestic organosilicon manufacturers: Zhejiang Xinan, Xinyaqiang, Ningbo Runhe and Hubei Xingfa, the client encountered a common industry challenge: sales representatives of each manufacturer prioritize promoting their own core product lines, avoiding detailed introduction of competitors’ strengths and weaknesses without malicious slander, and claiming their full product range adapts to all three of the client’s working conditions. The Swiss procurement and R&D team lacked familiarity with China’s silicone oil industry, unable to distinguish process differences and application scope limitations across brands. Blind sample testing incurred high costs and lengthy timelines, with multiple trial samples exhibiting unstable viscosity, high-temperature yellowing and ineffective defoaming in weakly acidic environments, stalling sample screening for nearly 40 days. To avoid production line shutdown risks and finished product disqualification from EU market access standards caused by incorrect procurement, the client formally entrusted HiSiaddi’s chemical foreign trade team to conduct neutral third-party brand analysis, model screening and implementation of finalized procurement solutions.

    2. HiSiaddi Objectively Dissects Product Characteristics, Strengths and Weaknesses of Four Major Domestic Mainstream Brands

    Leveraging organosilicon industry resources and laboratory testing data, HiSiaddi delivered unbiased analysis unconstrained by cooperation interests, dissecting the advantages and disadvantages of core silicone oil models from four leading manufacturers across four dimensions: industrial chain layout, refined processing technology, product positioning and applicable scenarios, with full details shared with the client’s Swiss R&D department:

    (1) Zhejiang Xinan Chemical (Domestic Full Industrial Chain Leader)

    Core models: Pharmaceutical grade 100cs demolding silicone oil, refined high-temperature food-grade silicone oil, generic antifoaming dimethylsilicone oil

    · Strengths: Self-sufficient full industrial chain monomer production delivers robust raw material control, outstanding batch stability for mass production, complete supporting molecular distillation equipment with industry-leading D4/D5 cyclic siloxane residue control, sufficient production capacity and stable scheduling for large-tonnage long-term orders, complete food and pharmaceutical production qualifications, and excellent high-temperature yellowing resistance for hydrofined baking-grade models.

    · Weaknesses: Limited flexibility for small-batch non-standard modified orders; generic pure dimethylsilicone antifoaming oil lacks polyether modification and cannot adapt to weakly acidic probiotic fermentation environments; extended delivery lead times for customized modified grades.

    (2) Jiangsu Xinyaqiang (Specialized Refined Silicone Oil Manufacturer)

    Core models: Pharmacopoeia-grade narrow-viscosity silicone oil, side-chain modified weakly acid resistant antifoaming silicone oil

    · Strengths: Focused on refined pharmaceutical silicone oil production with sealed clean production lines and multi-stage molecular distillation equipment, achieving impurity control for heavy metals and cyclic siloxanes comparable to imported products. Flexible small-batch modification capacity with proprietary polyether side-chain modified trisiloxane supporting products, unique process advantages in weakly acidic fermentation defoaming applications, and viscosity tolerance controllable within ±2cs to perfectly match high-precision spraying demolding working conditions for soft capsules.

    · Weaknesses: Insufficient self-sufficiency of full industrial chain raw materials, higher production costs for bulk generic baking silicone oil, smaller ready stock volume compared to Xinan for mass orders, and slightly extended delivery cycles for concentrated large-volume bulk shipments.

    (3) Ningbo Runhe (Diversified Deep Processing Silicon Enterprise)

    Core models: General daily chemical silicone oil, mid-tier food-grade antifoaming silicone oil

    · Strengths: Extensive product portfolio with fast sample delivery for small and medium orders, cost-effective generic silicone oil, mature supporting supply for textile and daily chemical sectors.

    · Weaknesses: Pharmaceutical grade silicone oil is not its core product line, lacking full-process molecular distillation post-processing leading to elevated cyclic siloxane residues, limited production capacity for high-temperature refined grades, failing to meet the client’s mandatory EU Pharmacopoeia and long-term 220°C high-temperature baking indicators, only suitable for low-end industrial and daily chemical applications.

    (4) Hubei Xingfa (Raw Material-Focused Large Manufacturer)

    Core models: Industrial-grade and standard national food-grade generic silicone oil

    · Strengths: Massive monomer production capacity with cost advantages for industrial silicone oil and fast ready stock delivery.

    · Weaknesses: Extensive polymerization processes without hydrofining and deep rectification procedures, broad molecular weight distribution of generic silicone oil prone to oxidative yellowing under high temperatures, failing EU food contact migration standards and disqualifying deployment on the client’s food and pharmaceutical production lines, only viable as an industrial alternative.

    3. Finalization of 2 Brands + 3 Fixed Models Aligned with Client’s Three Application Demands

    Matching the client’s three differentiated working conditions – pharmacopoeia-compliant soft capsule demolding, 220°C high-temperature baking and weakly acidic probiotic fermentation defoaming – HiSiaddi eliminated Runhe and Xingfa as mismatched suppliers, selecting two mid-to-high-end brands Xinan Chemical and Xinyaqiang to precisely finalize three dedicated models corresponding to the client’s three procurement categories:

    1. Xinan High-Temperature Refined Food-Grade Dimethylsilicone Oil (71 tons, baking exclusive): Hydrofined grade eliminating unsaturated end groups via high-pressure treatment, remaining clear and yellow-free after 4 hours of constant-temperature baking at 230°C with stable dispersion without stratification when blended with sunflower oil for long-term storage, meeting continuous high-temperature release requirements of tunnel ovens, with Xinan’s full industrial chain guaranteeing stable mass supply year-round.

    2. Xinyaqiang EP Pharmacopoeia-Grade 100cs Narrow-Viscosity Silicone Oil (68 tons, soft capsule demolding exclusive): Two-stage molecular distillation removes cyclic siloxanes to limit D4+D5 <50ppm, viscosity controlled at 100±2mm²/s with total heavy metal content below 1ppm to meet European Pharmacopoeia standards, eliminating mold adhesion and excessive liquid medicine particulate issues.

    3. Xinyaqiang Polyether Modified Antifoaming Special Silicone Oil (47 tons, probiotic fermentation exclusive): Minor hydrophilic side-chain modification delivers stable dispersion without emulsion breaking across pH 4.2~5.5 weakly acidic environments, fast defoaming onset and long foam suppression duration, resolving the pain points of emulsion breaking and inhibited strain activity encountered with generic pure dimethylsilicone oil.

    4. Sample Verification, Bulk Shipment and Long-Term Cooperation Implementation

    HiSiaddi coordinated both manufacturers to supply sterile packaged samples accompanied by CNAS test reports, LFGB compliance documents and REACH bilingual SDS documents, airfreighted uniformly to Nutripharma’s Swiss laboratory for full physical and chemical testing, accelerated aging storage trials and pilot production testing. After three rounds of trials, all product indicators fully matched original Wacker silicone oil performance, prompting the client to immediately issue an initial trial order of 52 tons produced separately at two factories and consolidated into combined containers shipped from Shanghai Port to Geneva, with complete compliance documentation facilitating smooth customs clearance and warehousing. After raw material deployment on mass production lines, soft capsule scrapping rates, defective baked goods and abnormal fermentation foam issues were all resolved, restoring production lines to full load capacity. The remaining 134 tons were delivered in five monthly batches aligned with Swiss food production and sales cycles, achieving full on-time delivery of the 186-ton annual order. Comprehensive localized procurement costs decreased by 36.2% compared to imported Wacker products, and logistics lead times were shortened from 98 days to 37 days.

    In the following year, Nutripharma renewed its annual long-term supply agreement for 230 tons of dimethylsilicone oil series, permanently adopting the two brands and three models selected by HiSiaddi, while fully entrusting HiSiaddi with brand model selection and sample coordination for supporting organosilicon raw materials including emulsified silicone oil and silicone waxes.

    5. Project Summary

    1. Industry Pain Points: Sales-oriented domestic silicone oil manufacturers universally prioritize promoting their own products and avoid objective disclosure of competitor strengths, creating barriers for overseas mid-to-high-end clients lacking familiarity with China’s industrial chain segmentation, who risk mistakenly selecting generic industrial-grade products leading to production failures and economic losses. Food and pharmaceutical grade silicone oil carries high subdivision barriers with vast process gaps between generic off-the-shelf grades and refined pharmacopoeia-compliant grades; product adaptability cannot be judged solely from unilateral manufacturer introductions.

    2. HiSiaddi Service Value: Adopting a neutral third-party perspective to break brand information barriers, HiSiaddi evaluates manufacturers based on the client’s terminal production regulatory requirements and working conditions without binding interests to a single supplier, objectively benchmarking advantages and disadvantages across brands to drastically narrow the selection scope and cut client sample testing and trial error costs, securing deep binding with high-quality overseas end users through professional model selection services.

    3. Procurement Logic of High-End Clients: European and American food and pharmaceutical enterprises prioritize product compliance, working condition matching and batch stability during model selection, with pricing as a secondary factor. Objective and impartial third-party brand evaluation is the core driver of large-volume long-term order conclusion.

    For inquiries about brand and model comparative analysis, please contact HiSiaddi customer service.


    References
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