Alumiprep 33 (Bonderite C-IC 33 Aero)

The cleaner-brightener used before a conversion coating.

As listed

FieldValue
SellerAircraft Spruce
ProductBonderite C-IC 33 Aero (formerly Alumiprep 33)
UseClean and brighten aluminum, including corroded surfaces
HazardHazardous
PacksQuart (09-01621), gallon (09-01620)
Listing checked2026-09-30

Taken from Aircraft Spruce's product page on 2026-09-30. Where the listing does not state a figure, this table does not either.

What it is for

It is the first step in the sequence the Alodine 1201 listing gives.

Corrosion removal on structure has limits set in the SRM; a cleaner does not decide how much metal can go.

Variants listed

Spruce No.Maker No.Description
09-01621HS594416Bonderite C-IC 33 Aero (Formerly Alumiprep 33)
09-01620HS594015Bonderite C-Ic 33 Aero - Alumiprep 33 Gallon

Taken from the variant list on the Aircraft Spruce page, checked 30 September 2026.

Where to buy

The link opens Aircraft Spruce's own page for this item, so the price and stock you see are theirs and current. We do not copy prices.

The Aviation Point links to third-party manufacturer and distributor websites. We may earn a commission on purchases made through these links, at no additional cost to you. The Aviation Point has no partnership or affiliate agreement with Aircraft Spruce, and these links carry no tracking parameters.

Sources

Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.
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