Stewart Systems Ekoetch Aluminum Etch / Cleaner

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Part# 09-00473
MFR Model# E675-Q


With Heat Pack option adds a shipping heat pack to keep the material from freezing while in transit. It is recommended for winter months / destinations in cold climates where the temperature may drop below freezing while in transit. If the material freezes, it is not recommended for use.

Stewart Systems EkoEtch
EkoEtch Aluminum Etch is a concentrated combination acid based detergent and degreaser. EkoEtch removes scale, corrosion, light oil, processing fluids and brightens aluminum. EkoEtch is non-hazardous, water reducible and non-flammable. Use EkoEtch to prepare both old and new aluminum surfaces before applying Stewart Systems EkoPrime or EkoPoxy Primer/Sealers. On old aluminum it is recommended to clean the surfaces first with Stewart Systems EkoClean. Once the surface has been treated with EkoClean, it should be primed within 8 hours for maximum corrosion protection. Available in Quarts only

ENVIRONMENTAL ADVANTAGES CHARACTERISTICS * Excellent lime remover * Excellent scale remover * Excellent soap film remover * Can be applied in a wide variety of temperature/ humidity conditions * Water is used for clean-up * Non-Hazardous * Shelf life of 1+ years * Non-Flammable

AIR QUALITY DATA Free of lead and chromates.

USES * Lime, scale, soap film removal * Concrete floors * Cleaning of garbage containers * Cleaning of grease traps * Industrial/mechanical rooms * Rendering plants * Machine shops * Brightens aluminum

PHYSICAL DATA * Liquid, Clear * Specific Gravity: 1.17 * Color: None * Phosphates: None * Sediment: None * Odor: Mild

* Shelf Life: 1+ years * pH: 2.0 * Boiling Point: 212F * Weight per gallon: 9.75 lbs * VOC: <0.7 lbs/gal * Flash Point: 140F CC
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


Shipped quicker than getting it direct from manufacturer and was even a little less expensive.

Greg K Verified Purchase


June 23, 2021

Worked well,diluted as recommended.

Frazer T Verified Purchase


June 11, 2021

A good product, quickly etches the metals surface. Works well in conjunction with the de-greaser. Follow the instructions on the bottle and be sure to pressure wash parts to remove the etching material.

Richard C
April 27, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can the Stewart Systems Ekotech Aluminum Etch / Cleaner be used to clean old paint to be painted over?

Per Vendor: No, this product is only used for aluminum. The product you are looking for is the EKOClean. P/N# 09-03089 (Quart) or P/N# 09-03090 (Gallon).

Q: Does this product require a sealer after use or can the area be treated with a light lube like acf 50 once a year?

Aluminum should not be etched unless it is going to be primed. It is better protected with its alclad coating on it. The etch will remove that and the alloy aluminum under it is more susceptible to corrosion.

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