SY-204 Alkaline Etchant

SY-204 alkaline etchant is a pale yellow, alkaline liquid that contains no nitrates, chromates, or chlorides. In alkaline etching baths for aluminum and aluminum alloys, it effectively suppresses over‑etching, surface pitting, and enhances surface brightness—achieving the “bright E6 finish” specified in German standards. It also removes minor surface irregularities and burrs, such as tool‑mark lines from machining, abrasions, and scratches, leaving the aluminum surface with a uniform, fine sandblasted decorative finish. The product is non‑hazardous to humans and is both economical and environmentally friendly.

SY-204B Long-Lasting Alumina Alkali Etchant

SY-204B long‑acting aluminum alkaline etchant is a neutral liquid product. When combined with NaOH, it forms an alkaline etching bath that provides matting and leveling effects, enabling matte etching of aluminum. The purpose is to impart a satin‑matte or matte finish to aluminum parts that have not undergone mechanical machining or polishing, prior to anodizing. SY-204B increases the tolerance of Al³⁺ ions in the alkaline solution from 40 g/L to 140 g/L.

SY-203 Acidic Sandblasting Agent

SY-203 acidic sandblasting agent is a slightly acidic solid used as a pretreatment to produce a uniform, fine sandblasted finish on aluminum surfaces; it contains fluorides and surfactants. It is particularly suitable for aluminum surfaces that have undergone mechanical polishing, electrolytic polishing, or chemical polishing, delivering an impeccable matte finish.

SY-202 Alkaline Degreaser for Aluminum

SY-202 alkaline degreaser for aluminum is a concentrated, silicate-free, mildly alkaline powder detergent specially formulated to remove surface oils and oxide films from aluminum and aluminum alloys. The wetting agents in SY-202 can be easily rinsed off metal surfaces without emulsifying oil contaminants—unless the oil itself contains an emulsifier.

SY-201 Alkaline Degreaser for Aluminum

SY-201 aluminum‑acid degreaser is a colorless liquid, commonly referred to as “aluminum acid degreaser.” It was specifically developed to streamline the pretreatment process for aluminum alloys, offering the same functionality as the conventional three‑step method—degreasing, alkaline etching, and neutralization. Moreover, it leaves the surface of aluminum and its alloys free of dullness, preserving the original luster of the base material. Notably, its corrosion rate is only one‑fifth that of the traditional process.

SY-132 Aluminum Mirror Polishing Agent (Fine)

SY-132 aluminum mirror‑finish polishing agent (premium grade) is a colorless, viscous liquid that contains no lead, chlorinated paraffins, hexavalent chromium, or their compounds. It effectively removes oil and rust while delivering exceptional lubrication and abrasive performance. It restores metal surfaces to a luster surpassing the original finish without leaving any scratches or blemishes. This polishing fluid is specially formulated for use in vibratory finishing machines to process various aluminum alloys. When used in conjunction with polishing stones, it accelerates the removal of machining marks, burrs, and flash from workpiece surfaces, reduces surface damage caused by contact with the stones, and delivers outstanding results on the polished surfaces of aluminum alloys, stainless steel, copper, and other metals.

SY-131 Aluminum Mirror Polishing Compound (Coarse)

SY-131 aluminum mirror‑polishing compound (coarse) is a colorless, viscous liquid. When used with a polishing machine, it enables fine grinding and mirror‑finish polishing of aluminum alloy surfaces, enhancing polishing efficiency while removing surface oils and achieving an initial bright finish. It also provides rust protection, maintains luster, and offers lubrication to reduce abrasion, helping the workpiece attain an ideal level of gloss. It delivers comparable, outstanding results when applied to stainless steel, copper, and other metal surfaces. This product is non‑toxic, non‑oxidizing, and non‑flammable, with excellent detergency, anti‑rust properties, and cleaning performance. It can restore metals to a brighter finish than their original state, and its wastewater discharge complies with environmental regulations.