Trimethylolpropane Triglycidyl Ether | CAS 30499-70-8 | Epoxy Resin Diluent | China Manufacturer
Product Name: Trimethylolpropane Triglycidyl Ether
Synonym: TMPTGE, Trimethylolpropane Triglycidyl Ether, TMPTE,Epoxy Diluent
CAS Number: 30499-70-8
Epoxy Value (eq/100g): 0.69 – 0.74
Viscosity: 100 – 200 mPa·s
Purity: ≥ 97%
Appearance: Transparent liquid
Packaging: 1kg / 25kg (custom packaging available)
Lead Time: 3-7 business days from stock
Applications: Electronic potting, coatings, structural adhesives, artificial marble
Free Sample: Available upon request for R&D evaluation
Worldwide Delivery: DHL / FedEx / air / sea
Made in China | COA & SDS provided with every shipment
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
📄 TMPTGE Product Overview
Trimethylolpropane Triglycidyl Ether (CAS 30499-70-8), also known as TMPTGE, is a high-purity trifunctional epoxy reactive diluent featuring three epoxy groups. It provides excellent dilution performance and crosslinking density enhancement for epoxy resin systems.
As a China-based direct manufacturer, Alfa Chemical supplies TMPTGE with strictly controlled epoxy value (0.69-0.74 eq/100g), optimal viscosity (100-200 mPa·s), and consistent quality to meet the requirements of electronic potting, high-performance coatings, and structural adhesives. We provide flexible packaging options (1kg to 200kg) and fast worldwide delivery.
Competitive equivalence: TMPTGE is functionally equivalent to common trifunctional epoxy diluents such as HELOXY™ Modifier 48 and Araldite® DY-T. Performance may vary by formulation. Users should conduct their own suitability tests.
Want to test TMPTGE in your formulation? Request a sample →
🔌 TMPTGE for Electronic Potting
TMPTGE is used as a low-chloride reactive diluent in electronic potting compounds. Residual chloride is controlled below 20 mg/kg, reducing corrosion risk in sensors, power modules, and automotive electronics. Chloride ions can migrate under electrical bias and accumulate at metal interfaces. This makes low chloride content a reliability requirement, not just a specification preference.
Recommended dosage is 10–30% of epoxy resin weight. TMPTGE is compatible with anhydride and amine curing agents commonly used in electronic encapsulation. Cured Tg typically remains within 12°C of the unmodified system, depending on curing schedule and hardener type.
Working on an electronic potting project? Ask for a low-chloride sample →
🎨 TMPTGE for Epoxy Coatings
In solvent-free and high-solids coatings, TMPTGE lowers viscosity and raises crosslink density. This improves chemical resistance, hardness, and adhesion without adding volatile solvents. Unlike monofunctional or difunctional diluents, it does not extend the chain between crosslink points or terminate the network. Instead, its three epoxy groups add branch points.
Typical loading is 5–20% of the epoxy resin weight. At these levels, MEK double rub resistance and pencil hardness can improve without a significant drop in flexibility. Formulators should confirm compatibility with their specific curing agent and substrate.
Formulating a solvent-free coating? Discuss your formulation with our technical team →
🧱 TMPTGE for Adhesives & Sealants
TMPTGE improves bond strength and humidity resistance in structural adhesives and sealants. Its trifunctional structure increases crosslink density without making the cured adhesive brittle. The three epoxy groups react into the network, so the diluent becomes part of the crosslinked structure rather than remaining as a free chain end.
Recommended dosage is 10–30% depending on the base resin and target viscosity. Lap shear strength on steel and aluminum typically improves or remains stable when TMPTGE replaces a portion of the base resin. For specific substrate or curing conditions, contact our technical team for formulation support.
Need a diluent for structural adhesives? Get a recommendation →
📋 TMPTGE Specifications
| ITEMS | SPECIFICATION |
|---|---|
| CAS Number | 30499-70-8 |
| Molecular Formula | C₁₂H₂₀O₄ |
| Molecular Weight | 228.28 g/mol |
| EINECS Number | 222-384-0 |
| Purity | ≥ 97% |
| Appearance | Transparent liquid |
| Viscosity | 100 – 200 mPa·s |
| Epoxy Value | 0.69 – 0.74 eq/100g |
| Saponifiable Chlorine | ≤ 0.3 % |
| Inorganic Chlorine | ≤ 20 mg/kg |
| Water Content | ≤ 0.1 % |
| Storage Condition | Cool, dry, well-ventilated |
| Packaging Options | 1kg / 25kg / 200kg, custom |
💡 Key Feature: Trifunctional structure provides enhanced crosslinking density and improved mechanical properties.
🧪 Request a Sample for Evaluation
🏗️ TMPTGE Key Applications
TMPTGE is a versatile trifunctional epoxy reactive diluent that improves crosslinking density and mechanical properties. Click any application for technical details.
🔌
Electronic Potting
Low-chloride diluent for encapsulation and potting compounds.
🎨
High-Performance Coatings
Solvent-free and high-solids coating formulations.
🔬 Quality Control & Supply Capacity
🏭 Production Capacity
Annual output of 300+ metric tons. Advanced synthesis and purification processes ensure high epoxy value (0.69-0.74 eq/100g) and low chlorine content across all batches.
📋 Batch Traceability
Every shipment includes a Certificate of Analysis (COA) showing epoxy value, viscosity, chlorine content, and water content. Other documents are available upon request.
Want to review a COA from a recent batch? Request a sample COA →
❓ Frequently Asked Questions
Our product has an epoxy value of 0.69 – 0.74 eq/100g, providing high reactivity and crosslinking density for epoxy formulations.
Available in 1kg, 25kg, and 200kg. Custom packaging available upon request.
Store in a cool, dry, well-ventilated area in sealed containers. Keep away from heat and oxidizing agents. Shelf life is 24 months under proper storage.
Yes, COA is provided with every shipment. Batch-specific documents are available upon request.
Yes, TMPTGE is registered under EU REACH. Registration number available upon request.
Yes, we provide transport certification and UN-certified packaging for sea (IMDG) and air (IATA DGR) shipments.
TMPTGE is trifunctional, while NGDE and BGE are difunctional or monofunctional. Direct substitution may change crosslink density and cured properties. Consult our technical team for formulation support.
📦 Packaging & Shipping
Packaging
1kg / 25kg / 200kg
UN-certified packaging available
Lead Time
3-7 business days from stock
Bulk orders negotiable
Shipping
DHL / FedEx (samples)
Air / Sea freight (bulk)
📄 Documentation: COA provided with every shipment. Additional documentation available upon request. Transport certification available for sea and air shipments.
Need a bulk quote with shipping cost to your port? Get a landed cost estimate →
🏭 Why Choose Alfa Chemical
300+ Tons Capacity
Stable supply for coatings, adhesives, and electronic potting industries
Batch-to-Batch Consistency
Strictly controlled epoxy value, viscosity, and purity
China Manufacturer Direct
Competitive pricing with full COA traceability
📂 Product Category
- Browse All Other Material Chemicals - Parent Category
- Browse All Material Science - Sub-Category
We respond within 12 hours. Ask about research samples and dedicated logistics support.
📩 Contact Our Sales TeamAlfa Chemical is a China-based manufacturer of fine chemicals, biochemicals, and specialty intermediates, headquartered in Zhengzhou, Henan, China. We serve research institutions and industrial customers in over 50 countries. Learn more at www.alfa-chemical.com.
Disclaimer: For R&D and industrial use only. Not for food, pharmaceutical, or cosmetic applications without specific regulatory compliance testing. All information is for reference purposes. Users should conduct their own suitability tests under actual conditions. Products must be handled by trained professionals with appropriate PPE.
Trademark Notice: HELOXY is a trademark of Hexion Inc. Araldite is a registered trademark of Huntsman Corporation. Alfa Chemical is not affiliated with these companies. All trademarks are the property of their respective owners.
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