Trial #4

Trial #4

To evaluate the effectiveness of the cleaners’ removal of lubricating oils and dirt from jeweled orifices.

2017

25

2

0

0

Part

11/19/2017

1.00

Immersion/Soak

Carla De La Cruz

Brass
Nickel

Oil

None

Air dry

Visual

Brass and nickel jeweled orifices were organized in sets of three for each product. Jeweled orifices were found to be the hardest substrate to clean based on expert judgement. Observations and photographs were taken using a microscope. Visual observations were taken to note the initial, dirty, and clean appearance of the parts. Five drops of a lubricating oil provided by Bird Precision were applied to the orifices along with any contamination from dust, fibers, and skin oils. Parts were placed in a basket and cleaned for one minute using unheated immersion. Slight agitation was applied during immersion by shaking the basket in the solution. After cleaning, the basket was placed over a heated dryer for five minutes before final observations were taken.

Sky Kleen 1000

Initial

Brass: One part has small crack at the bottom of the jewel opening.    

Nickel: No visible damage or dirt on the orifice or jewel.

Dirty

Brass: Oil obstructs jewel.

Nickel: Oil is not easily very visible on parts.     

Clean

Brass: Parts slightly duller; some debris inside orifice; small amount of residue on outside.

Nickel: No debris on part; not easy to rate cleanliness.

Wipe Off 5

Initial

Brass: One part with a crack across the very top of the jewel.

Nickel: No visible damage or dirt on the orifice or jewel.

Dirty

Brass: Oil obstructs jewel.

Nickel: Oil obstructs jewel.

Clean

Brass: Parts discolored; no longer appear to be brass; some debris around orifice.

Nickel: Part appears to have lots of residue; oil burnt on.

Micro 90

Initial

Brass: Slight scratch on the outer surface of one part.

Nickel: No visible damage or dirt on the orifice or jewel.

Dirty

Brass: Oil visible on the inside of the jewel.

Nickel: Oil visible on the inside of the jewel.

Clean

Brass: Discolored parts; lots of debris and blockage of orifice.

Nickel: Parts appear damaged by heat; slightly burned; residue visible.

BioCircle Aero

Initial

Brass: No visible damage or dirt on the orifice or jewel.

Nickel: No visible damage or dirt on the orifice or jewel.

Dirty

Brass: Oil visible on the inside of the jewel.

Nickel: Oil visible on the inside of the jewel.

Clean

Brass: Parts appear less bright; some residue on and around jewels and parts.

Nickel: Appear clean outside and inside.

SC Aircraft & Metal Cleaner

Initial

Brass: No visible damage or dirt on the orifice or jewel.

Nickel: No visible damage or dirt on the orifice or jewel.

Dirty

Brass: Oil visible on the inside of the jewel.

Nickel: Oil visible on the inside of the jewel.

Clean

Brass: Some residue on inside of jewel; some debris; burned on oil in crevices.

Nickel: Residue on inside and outside of part. 

Sky Kleen 1000 and Bio Circle Aero were effective at removing some of the soils from brass and nickel jeweled orifices. Micro 90 and Wipe Off 5 damaged the parts and will no longer be used. Next step is to repeat this procedure using Gemtek aqueous cleaners and introducing agitation.

No relation