Quick Penetrant T-70E (Wetting Agent OT) is a classic and efficient anionic surfactant with the chemical name sodium di(2-ethylhexyl) sulfosuccinate. Compared to other types of penetrants (such as fatty alcohol polyoxyethylene ether phosphate, isooctyl alcohol polyoxyethylene ether, etc.), its greatest advantage lies in its molecular structure, which endows it with extremely rapid wetting and penetrating ability. It can reduce the surface tension of liquids to a very low level (≤ 30 mN/m) at very low concentrations (usually 0.1%-1% working solution), thereby quickly entering and spreading into the micro-pores of substrates such as fibers, leather, and metals. This is particularly critical in processes with high speed requirements, such as textile dyeing and metal cleaning.
Compared to other similar series of quick penetrant T products on the market (such as 40%, 50%, and 75% content), Guoli Chemical's T-70E represents the best balance of performance, economy, and ease of use. High-concentration products (75%) have higher active matter content but are also more viscous, posing challenges for operation and pumping at low temperatures; low-concentration products (40%, 50%) are relatively less economical. T-70E with 70% content ensures high cost-effectiveness while still possessing excellent low viscosity and fluidity, facilitating precise metering and dilution, making it an ideal choice for large-scale industrial production.
Furthermore, the versatility of this product is also a significant advantage. It is not only a top-tier penetrant but also possesses excellent emulsifying, dispersing, and wetting functions. In practical applications, it exhibits strong resistance to hard water and alkali (can withstand 80~100g/L NaOH solution), and has good chemical stability, resisting both acids and alkalis. These characteristics enable it to adapt to various complex working fluid environments ranging from strong acids to strong alkalis, which is precisely a capability that many non-ionic penetrants lack. Additionally, its low-foam property makes it more suitable for dynamic processes such as spray cleaning, avoiding foam issues without the need for additional defoamers.
The following technical parameters intuitively reflect the excellent performance of Quick Penetrant T-70E:
| Core Performance Indicator | Typical Value of Quick Penetrant T-70E | Comparison with General Industry Requirements/Ordinary Products |
|---|---|---|
| Penetration Power (1% aqueous solution, canvas sinking method) | ≤ 5 seconds | Standard for high-quality penetrant is ≤ 120 seconds, ordinary products > 60 seconds |
| Surface Tension (25°C) | ≤ 30 mN/m | Surface tension of water is 72 mN/m, ordinary surfactants are 30-45 mN/m |
| Active Matter Content | ≥ 70% | Common market contents range from 40% to 75% |
| Alkali Stability | Good, can withstand 80~100g/L NaOH | Some ordinary penetrants may precipitate or fail in high-concentration alkali |
| Foam Characteristics | Low Foam | Many penetrants have high foaming, requiring additional defoamers |
| Hard Water Resistance | Excellent, not prone to precipitation or deactivation | Anionic surfactants are generally sensitive to hard water |
| HLB Value | Approximately 13 | Indicates both hydrophilic and lipophilic properties, wide applicability |
*The above data are all sourced from the Guoli Chemical product technical database, and each batch of products undergoes strict quality inspection.
Given its excellent penetration, wetting, emulsifying, and low-foam properties, Quick Penetrant T-70E performs exceptionally well in the following application scenarios with stringent penetration requirements: