Degreasing powder AR-815 was developed by Guoli Chemical specifically for heavy oil contamination on metal drill bits and precision cutting tools. Its differentiated competitiveness first lies in the precision of its formulation design. The product uses sodium carbonate and sodium metasilicate pentahydrate to build an efficient alkaline base, combined with sodium tripolyphosphate as a water softening and dispersing agent, and is compounded with a dual-component surfactant system of fatty alcohol polyoxyethylene ether (non-ionic) and sodium dodecylbenzene sulfonate (anionic). According to the product database, the effective content of this formulation is ≥99%, and the solid content is ≥95%, far higher than common filler-type degreasing powders on the market (some competing products have only 70%-85% active content), which means more concentrated active cleaning ingredients per unit dosage and higher oil removal efficiency.
Unlike most general-purpose alkaline degreasing powders on the market that rely solely on simple alkaline washing or emulsification mechanisms, AR-815 achieves a triple synergistic effect of saponification, emulsification, and chelating dispersion: alkaline additives saponify animal and vegetable oils and fatty acid esters into water-soluble soaps; fatty alcohol polyoxyethylene ether and sodium dodecylbenzene sulfonate emulsify and disperse mineral oils and synthetic esters by reducing surface tension (approximately 30-35 mN\/m at 1% concentration); and sodium tripolyphosphate chelates calcium and magnesium ions in hard water as well as metal soap residues, preventing redeposition of oil stains. This mechanism is especially effective for stubborn stains composed of carbon deposits, sintered residues, and cutting fluid mixtures in the spiral flutes of drill bits—ordinary degreasing powders often can only handle surface oil films and fail to penetrate the bottom of flutes and the root of cutting edges.
Furthermore, AR-815 also has significant advantages in material adaptability and foam control. Its formulation takes into account three mainstream drill bit materials: high-speed steel, carbide, and tungsten steel, and is non-corrosive to tungsten steel substrates. It produces low to moderate foam, making it suitable for various industrial cleaning methods such as spray, ultrasonic, and immersion cleaning, avoiding the overflow and equipment blockage problems caused by high-foam formulations in spray systems. In contrast, some low-cost degreasing powders on the market have unstable foam control or pose a risk of micro-corrosion to the cobalt binder phase in carbide, whereas AR-815 has been specially optimized for drill bit applications.
| Parameter Item | AR-815 Value | Comparison with Competitors |
|---|---|---|
| Effective Content | ≥99% | Most general degreasing powders are 70%-90%, with high filler content |
| Solid Content | ≥95% | High solid content ensures sufficient active cleaning ingredients |
| pH of 1% Aqueous Solution | 11.0~12.5 | Moderate alkalinity balancing oil removal efficiency and material safety |
| Surface Tension (1% Concentration) | Approx. 30-35 mN\/m | Better than pure soda solution (approx. 65-70 mN\/m), stronger penetration |
| Foam Characteristics | Low to moderate foam | Suitable for spray systems, avoids high-foam overflow issues |
| Penetration | Excellent | Specifically optimized for complex geometries like drill bit spiral flutes |
| Moisture Content | ≤5.0% | Low moisture ensures powder flowability and reduces caking risk |
| Ion Type | Anionic\/Nonionic blend | Dual surfactant synergy for broader oil removal spectrum |
| HLB Value | 10-14 | This range provides good emulsifying power for both mineral oils and synthetic esters |
| Packaging Specification | 20kg woven bag | Industrial standard packaging, convenient for storage and batch dosing |
AR-815 is most suitable for industrial batch degreasing cleaning of metal drill bits, taps, milling cutters, and other cutting tools, especially heavy oil contamination with carbon deposits, sintered residues in spiral flutes, adherent cutting oil, and grinding paste residues. It is recommended for use with ultrasonic cleaning tanks or spray cleaning lines. The typical concentration is 3%-8% (by weight), with optimal performance at temperatures between 50-80°C. It also performs excellently for degreasing pretreatment before electroplating, painting, or heat treatment of precision bearings and automotive parts.
When comparing options, if the current general-purpose alkaline degreasing powder exhibits issues such as residual oil film at the bottom of drill bit flutes after cleaning, substandard edge gloss, short cleaning solution life requiring frequent replacement, or excessive foam affecting spray system operation, switching to AR-815 can significantly improve cleaning yield.