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Croda Zephrym PD3315 is a polymer surfactant wetting agent launched by Croda, which is an acrylic copolymer solution and a variant of Atlox 4913 with a more hydrophilic molecular backbone. It has multiple functions such as high-efficiency wetting, water dispersion and crystal growth inhibition, suitable for agrochemical and other multi-field formulations
Excellent hydrophilic performance - More hydrophilic molecular backbone, better wetting and penetration efficiency than similar variant products
Integrated multiple functions - Integrates wetting, water dispersion and crystal growth inhibition, simplifying the formula system
Outstanding variant advantages - As a variant of Atlox 4913, its performance is more suitable for hydrophilic formula needs
Excellent compatibility - Compatible with various agricultural active ingredients, no formula stratification or precipitation
Easy to formulate and use - Acrylic copolymer solution form, can be directly added and stirred without special requirements
Agricultural pesticide formulations - Water-based pesticide suspensions to improve dispersibility, wetting effect and inhibit crystal growth
Micronutrient preparations - Foliar fertilizers and water-soluble fertilizers to enhance the dispersion of solid components and crop absorption efficiency
Seed treatment preparations - Seed coating and treatment solutions to improve wetting performance and adhesion of active ingredients
Biopesticide formulations - Biopesticide preparations to improve dispersion stability and extend shelf life
Agricultural adjuvant matching - As an agricultural adjuvant, improve the delivery efficiency of active ingredients and the overall performance of preparations
| Product Model | Zephrym™ PD3315 |
| Brand | Croda |
| Chemical Type | Polymer surfactant (wetting agent); Acrylic copolymer solution |
| Chemical Composition | Acrylic Copolymer |
| Active Ingredient Content | ≥98% (typical value) |
| Product Form | Liquid (acrylic copolymer solution, 25℃) |
| Ionicity | Non-ionic |
| HLB Value | 12 |
| Cloud Point | >70℃ (typical value) |
| Density (25℃) | 1.02-1.08 g/cm³ (typical) |
| Viscosity (25℃) | 300-800 mPa·s (typical) |
| pH Value (1% aq. sol.) | 6.0-8.0 (typical) |
Q1: What types of formulations is Croda Zephrym PD3315 typically used in?
A: Croda Zephrym PD3315 is designed for use in aqueous-based industrial cleaning, coating, and agricultural formulations where rapid substrate wetting and uniform surface coverage are critical. It is especially valued in low-foaming systems requiring efficient deaeration and stable dispersion.
Q2: How does PD3315 compare to traditional silicone or fluorosurfactant wetting agents?
A: Unlike many silicone or fluorinated alternatives, PD3315 offers a non-silicone, non-fluorinated chemistry with reduced environmental persistence concerns, while still delivering strong dynamic surface tension reduction and fast leveling performance on low-energy substrates.
Q3: Is PD3315 compatible with common biocides and thickeners used in industrial formulations?
A: Yes — PD3315 demonstrates broad compatibility with typical preservatives (e.g., isothiazolinones, formaldehyde donors) and rheology modifiers including associative urethanes, hydrophobically modified alkali-swellable emulsions (HASE), and cellulose ethers.
Q4: What is the recommended dosage range for optimal wetting performance?
A: Dosage depends on formulation requirements and substrate characteristics, but PD3315 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight — with significant effects often observed at the lower end of this range.
Q5: Does PD3315 require pH adjustment or special handling during incorporation?
A: PD3315 is stable across a wide pH range (approximately 3–12) and can be added directly to the aqueous phase at ambient temperature without pre-dilution or neutralization. Standard industrial mixing equipment is sufficient for uniform dispersion.
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