PPG-4000 is a high-molecular-weight polypropylene glycol with excellent stability, low volatility, and good solubility in various organic solvents. As a versatile raw material, it serves core functions across industries: in cosmetics/personal care, it acts as a humectant and thickener to enhance product texture; in pharmaceuticals, food-grade variants work as safe excipients or stabilizers; in industrial applications, it boosts lubricity in lubricants, improves film-forming in coatings, and enhances adhesion in adhesives. Compliant with international quality standards, it offers consistent performance, supports bulk supply, and suits customizable packaging—ideal for meeting diverse formulation needs of global buyers.
Product Advantage
1. Ultra-High Purity with Strict Quality Control
Our PPG-4000 achieves 99.8% minimum purity, verified by third-party lab testing (with test reports available upon request). We adopt a 5-step refining process to remove impurities, ensuring no heavy metals (lead, arsenic < 0.1 ppm) or residual solvents. This high purity makes it safe for pharmaceutical excipients and food additives, meeting FDA 21 CFR §172.820 and EU EC No. 10/2011 standards—critical for buyers in health-sensitive industries.
2. Exceptional Thermal & Chemical Stability
With a melting point of 50-56°C and decomposition temperature above 200°C, PPG-4000 maintains stable performance across -20°C to 150°C. It resists oxidation and hydrolysis even in long-term storage (shelf life up to 24 months under proper conditions). Unlike low-molecular-weight PPGs, it has < 0.5% volatility at 105°C, reducing material loss in high-temperature industrial processes like coating curing or plastic extrusion.
3. Tailored Viscosity & Molecular Weight Consistency
Our PPG-4000 features a narrow molecular weight distribution (MWD = 1.05-1.10), far lower than industry averages (1.2-1.3). This ensures consistent viscosity (800-1000 cP at 70°C) batch-to-batch, eliminating formulation inconsistencies for buyers. We also offer custom adjustments (molecular weight 3800-4200) to match specific needs, such as higher viscosity for adhesives or lower for personal care serums.
4. Multi-Industry Compatibility & Versatility
PPG-4000 exhibits excellent compatibility with oils, surfactants, resins, and polymers. In cosmetics, it blends seamlessly with hyaluronic acid (no phase separation) to boost moisturization; in lubricants, it mixes with mineral oils to reduce friction coefficient by 15-20%; in pharmaceuticals, it dissolves well with active pharmaceutical ingredients (APIs) to improve bioavailability.
5. Eco-Friendly Production & Compliance
Our manufacturing process reduces water consumption by 30% and carbon emissions by 25% compared to traditional methods, certified by ISO 14001. PPG-4000 is non-toxic (LD50 > 5000 mg/kg in oral rat testing) and biodegradable (80% degradation in 28 days per OECD 301B standard). It meets global regulations, including REACH (no SVHCs) and FDA, making it suitable for export to 50+ countries.
6. Reliable Bulk Supply & Flexible Packaging
We maintain a monthly production capacity of 500+ tons, ensuring 98% on-time delivery for bulk orders (10-500 tons). Packaging options include 20L plastic buckets, 200L drums, and 1000L IBC tanks—all food-grade/pharmaceutical-grade certified. For regular clients, we offer a 10% stock reservation service to avoid supply chain delays, supported by a 24/7 customer service team.
Technical Parameters
| Parameter | Specification |
| Appearance | Colorless to slightly yellowish viscous liquid |
| Color(Pt-Co) | ≤80 |
| Molecular Weight | 26~30 g/mol |
| Hydroxyl Value | 3700~4300 mg KOH/g |
| Acid Value | ≤ 0.5 mg KOH/g |
| Water Content | ≤ 0.5% |
| PH Value(1% aqueous solution) | 5.0~7.0 |
Product Uses
1. Cosmetics & Personal Care
In skin care (moisturizers, lotions) and hair care (shampoos, conditioners), PPG-4000 acts as a humectant and thickener. It locks in moisture to prevent dryness, improves product texture (non-greasy finish), and enhances ingredient solubility—keeping formulations stable for 12+ months. It's also used in makeup primers to boost adherence.
2. Pharmaceutical Industry
As a pharmaceutical-grade excipient, PPG-4000 is added to oral tablets/capsules to improve API solubility and bioavailability. It's also used in topical ointments to enhance spreadability and in syrups as a stabilizer. It meets FDA and EU EMA standards, safe for human use with no irritation risks.
3. Industrial Lubricants
In metalworking fluids and automotive lubricants, PPG-4000 boosts lubricity—reducing friction between moving parts by 15-20%. It resists high temperatures (up to 150°C) and hydrolysis, ensuring long-term lubricant performance. It’s compatible with mineral oils and synthetic bases, ideal for heavy-duty machinery.
4. Coatings & Paints
PPG-4000 improves film-forming in water-based and solvent-based coatings. It enhances coating flexibility (prevents cracking on rigid surfaces) and adhesion to substrates like metal, wood, and plastic. It also reduces drying time by 10-15% and boosts resistance to water and chemicals.
5. Adhesives & Sealants
In industrial adhesives (for plastics, rubber, and metals), PPG-4000 enhances bond strength by 25% and improves flexibility of cured adhesives. It's compatible with epoxy, polyurethane, and acrylic adhesives, ensuring stable performance in both low (-20°C) and high (100°C) temperature environments.
Product Operate Guide
Storage: Keep in sealed, cool (15-30°C) dry areas; avoid direct sunlight. Shelf life is 24 months unopened.
Handling: Wear gloves when touching; if contact with skin/eyes, rinse with water immediately.
Blending: Heat to 50-60°C (if solid) for easy mixing. Stir slowly into formulations (cosmetics/lubricants) until fully dissolved—no overheating above 100°C.
Dosage: Adjust based on use (2-5% for cosmetics, 5-10% for lubricants); test small batches first.
FAQ
Q1: Is PPG-4000 safe for use in food or pharmaceutical products?
A1: Yes. Our food/pharmaceutical-grade PPG-4000 meets FDA 21 CFR §172.820 and EU EC No. 10/2011 standards, with no harmful impurities, making it safe for food additives or pharmaceutical excipients.
Q2: What's the difference between PPG-4000 and lower-molecular-weight PPGs (e.g., PPG-2000)?
A2: PPG-4000 has a higher molecular weight (3800-4200 vs. 1800-2200 for PPG-2000), offering better thickening and stability—ideal for formulations needing long-term consistency, like industrial lubricants.
Q3: Can PPG-4000 be mixed with water or oil-based ingredients?
A3: It blends well with most oil-based ingredients and partially dissolves in water. For water-based formulations (e.g., cosmetics), heat to 50-60°C first to ensure uniform mixing without phase separation.
Q4: Do you provide samples of PPG-4000 for testing?
A4: Yes. We offer 500g-1000g free samples (shipping cost borne by buyers) for quality testing. Samples are shipped within 3 working days, with test reports included upon request.
Q5: What packaging options are available for bulk orders?
A5: We provide 20L plastic buckets, 200L drums, and 1000L IBC tanks—all food/pharmaceutical-grade. Custom packaging (e.g., smaller 5L containers) is available for orders over 50 tons.
