Product Overview

Neopentyl glycol (NPG) is an aliphatic diol of the neopentyl family, supplied as a white crystalline solid with an assay of not less than 99.0%. Its two primary hydroxyl groups sit on a quaternary carbon backbone, which gives the esters and resins built from it outstanding hydrolytic, thermal and oxidative stability. NPG is a core monomer for unsaturated and saturated polyester resins, alkyd resins, polyurethane systems, synthetic lubricant esters and a wide range of coating and ink binders.

Key Attributes

Key Highlights

• INDUSTRIAL GRADE PURITY: Assay not less than 99.0%, with controlled acid value and low moisture content, suitable for resin and coating production without additional purification.
• NEOPENTYL STRUCTURE ADVANTAGE: The quaternary carbon between two hydroxymethyl groups delivers ester linkages with excellent resistance to hydrolysis, heat and oxidation, extending the service life of the final resin.
• SUPERIOR COATING PERFORMANCE: NPG based alkyd and amino baking coatings show strong gloss retention, good flexibility and resistance to yellowing under prolonged exposure.
• VERSATILE DIOL MONOMER: One raw material serves unsaturated polyester, saturated polyester, polyurethane, alkyd resin, synthetic ester lubricant and surfactant production lines.
• WIDE SOLUBILITY RANGE: Readily dissolved in water and common organic solvents, so it can be charged in molten form or as a concentrated solution into batch and continuous reactors.
• STABLE SOLID FORM: Crystalline solid with a melting range of 127-130 C, easy to weigh, transport and store in bags, and stable during long ocean voyages.
• BULK SUPPLY READY: Minimum order quantity of 1 metric ton, lead time within 3 weeks, shipped by sea, with T/T and L/C payment terms accepted.
• DOCUMENTED QUALITY: A certificate of analysis is issued for every batch, covering assay, appearance, acid value and moisture.

Product Description

Neopentyl glycol, CAS 126-30-7, molecular formula C5H12O2 and molecular weight 104.15 g/mol, is a bifunctional alcohol in which both hydroxyl groups are primary and attached to the same quaternary carbon. This arrangement is the origin of its commercial value: esters formed from NPG resist saponification far better than those made from straight chain glycols, so resins containing it keep their mechanical and optical properties in humid, hot or alkaline environments.

The product is offered as a white crystalline solid of industrial grade with an assay of not less than 99.0%. It melts between 127 C and 130 C and boils between 207 C and 210 C, which allows it to be metered as a hot melt in continuous polyester plants or dissolved for use in batch reactors. Density is in the range of 1.06 to 1.10 g/cm3. NPG is hygroscopic, so bags should be resealed after each draw and stored in a dry warehouse. Solubility in water is about 83 g per 100 mL at 20 C, and the material is also freely soluble in lower alcohols, lower ketones, ethers and aromatic hydrocarbons.

Dideu Group supplies neopentyl glycol in 25 kg and 500 kg polyethylene bags for buyers in global markets. The minimum order quantity is 1 metric ton and the standard lead time is within 3 weeks from order confirmation. Shipments move by sea, and both T/T and L/C payment terms are accepted. Each consignment is accompanied by a certificate of analysis and the corresponding technical documentation.

Applications

Paints and Coatings

NPG is a standard diol for oil free alkyd resins, amino baking enamels, coil coatings and powder coating resins. Coatings formulated with it hold gloss over long outdoor exposure and resist yellowing, which makes it a preferred choice for appliance finishes, automotive refinish systems and architectural metal coatings.

Plastics and Polymers

As a monomer for unsaturated polyester resins and saturated polyester resins, NPG raises the heat distortion resistance and hydrolytic stability of the cured polymer. It is used in fiber reinforced plastic parts, cast and molded articles, and insulation materials.

Polyurethane and Elastomers

NPG based polyester polyols are used in rigid and flexible polyurethane foams, elastomers, and as intermediates for plasticizer production. The neopentyl backbone helps the finished polyurethane resist hydrolysis and microbial attack.

Printing Inks

Resin binders modified with NPG give inks better adhesion to non porous substrates, improved gloss and higher resistance to solvents and water, which is valuable in packaging, metal decoration and publication gravure inks.

Lubricants and Greases

Esterification of NPG with fatty acids yields synthetic lubricant base oils and additives for aviation lubricants. These esters combine low volatility, good low temperature fluidity and oxidation resistance, and are used in compressor oils, metalworking fluids and grease formulations.

Surfactants and Specialty Chemicals

NPG is a building block for non ionic surfactants, emulsifiers, wetting agents and defoamers, and is also used in the manufacture of stabilizers and polymerization inhibitors.

Agrochemicals and Pharmaceuticals

The diol serves as an intermediate in the synthesis of certain insecticide active ingredients, stabilizers and pharmaceutical auxiliaries where a hydrolytically stable hydroxyl carrier is required.

Solvent Applications

NPG is an effective selective solvent for the separation of aromatic hydrocarbons from naphthenic and paraffinic hydrocarbon mixtures in petroleum refining operations.

Specifications

Specifications follow the industrial standard for neopentyl glycol, solid grade. Batch specific figures are stated in the certificate of analysis issued with each shipment.

Packaging and Shipping

Storage Recommendations

• Keep bags tightly closed after each use, since the product is hygroscopic.
• Store in a cool, dry and well-ventilated warehouse.
• Protect from direct sunlight and keep away from heat sources.
• Stack on pallets, off the floor, and rotate stock on a first in first out basis.

Shipping: Goods are shipped by sea for bulk orders. Lead Time: Within 3 weeks from order confirmation. Minimum Order Quantity: 1 metric ton.

Company Profile

Dideu Group is a professional supplier of fine chemicals and specialty chemicals, serving customers in global markets with a full range of products from lab scale reagents to industrial quantities. Our product portfolio covers resin intermediates, glycols, esters, additives and specialty building blocks for the coatings, polymer, lubricant and agrochemical industries. We work directly with established production sites and maintain strict incoming quality control, so every lot released to a customer is verified against its certificate of analysis before shipment. Our export team handles documentation, packaging and logistics for ocean freight, keeping lead times predictable for repeat buyers. Customers receive responsive technical and commercial support in their own time zone, from the first inquiry through to after sales follow up. Whether you need a single metric ton or a steady monthly contract volume, Dideu Group is ready to supply consistent quality at a competitive position.

FAQ

1. What is the minimum order quantity for neopentyl glycol?

The minimum order quantity is 1 metric ton. Larger contract volumes are handled with the same lead time commitment and can be scheduled as regular monthly shipments.

2. What is the lead time?

Standard lead time is within 3 weeks from order confirmation. Dideu will confirm the exact shipping schedule when the order is placed.

3. What packaging options do you offer?

Neopentyl glycol is packed in sealed polyethylene bags, either 25 kg per bag or 500 kg per bulk bag. The packaging keeps the crystalline solid dry during handling and ocean transport.

4. What payment terms do you accept?

Dideu accepts both T/T and L/C. The exact terms are agreed in the sales contract according to order size and destination.

5. Do you provide COA and technical documents?

Yes. A certificate of analysis is issued for every batch, covering assay, appearance, acid value and moisture. The technical data sheet and full shipping documents are provided together with the order.

6. How do you ship the goods?

Bulk orders are shipped by sea in containers. Dideu arranges export documentation and coordinates with your forwarder or handles the freight on your behalf.

7. How should neopentyl glycol be stored after delivery?

Store the product in a cool, dry and well-ventilated warehouse, in tightly closed bags, protected from direct sunlight and away from heat sources. Because NPG absorbs moisture from air, reseal opened bags promptly.