OAKITE 33

$275.45$10,645.16

(4 gal – 50554660)
(53 gal – 50554656)
(275 gal – 50554667)

Acidic Compound for Cleaning, Removing Oxides, and Preparing Metals for Painting

SKU: N/A Categories: ,

Additional information

Weight 50 lbs
Dimensions N/A
Weight

275 GAL, 4 GAL, 53 GAL

Primary Application

OAKITE 33 is a liquid acidic compound designed for removing light grease, oils, shop dirt, flux, rust, oxides, and heat scale and for preparing metals for painting. It is also used for cleaning and conditioning aluminum
prior to surface conversion processing. Another application, recommended by stainless steel manufacturers,
is the use of Oakite 33 for cleaning stainless steel to remove dirt and embedded soils in the metal.
Oakite 33 meets the following Federal and Military specifications: TT-C-490, Method Vl, and MIL-C10578,
Type 1.

Chemical Characterstics

Chemical Composition ………………………………..Phosphoric acid, solvents, and surfactants
Appearance………………………………………………. As Received: Light-amber liquid
As Used: Pale-yellow solution

Odor …………………………………………………………Faintly aromatic
Specific Gravity (Approx.) ……………………………1.345 at 20 °C (68 °F)
Bulk Density ………………………………………………1345 g/l (11.2 lbs/gal)
Flash Point (Undiluted) ……………………………….None
Foam Tendency …………………………………………Moderate when circulated, severe when sprayed
Recommended Diluents………………………………Water
Maximum Solubility …………………………………….Complete
Behavior in Hard Water……………………………….Solubilizes hard water salts
Rinsability………………………………………………….Good with hot water; fair with cold water
Biodegradable Surfactants…………………………..Yes
Phosphorous-Free ……………………………………..No
Viscosity ……………………………………………………34 – 40 cps at 20 °C (68 °F) Brookfield Spindle 1,

60 rpm
Hygroscopic Tendency ……………………………….Slight
Normal Working Concentrations…………………..2 – 50% by volume
Normal Working Temperatures……………………. 27° – 60 °C (80° – 140 °F)

pH at Working Concentrations……………………..Under 2.0 at 21 °C (70 °F)
Effect of Prolonged Boiling…………………………..Loss of solvent
Effect of Working Solutions on Metals…………..Rate of metal loss from a 24-hour immersion in Oakite
33 at 5% by volume, 29 °C (120 °F), projected for one
year is as follows:
Metal (alloy) mm/yr in/yr
steel (1010) 3.12 0.123
stainless steel (304) 0.00 0.000
stainless steel (316) 0.00 0.000
stainless steel (403) 0.00 0.000
aluminum (3003) 12.14 0.478
galvanized steel 6.07 0.239
copper 0.10 0.004
brass 0.08 0.003
zinc 26.06 1.026

APPLICATION PROCEDURE
By Tank Immersion: Use at 5% to 25% by volume at 27° to 60 °C (80° to 140 °F) followed by rinsing and
drying.
For Wipe-on-Methods: Use at 10% to 50% by volume at room temperature. Apply with rags or brushes,
allow to soak for 2 to 20 minutes, rinse and wipe dry
SOLUTIONS CONTROL
Concentrations are titrated using Gardotest Procedure 128.
Sample Size: 1.0 MLS
Factor: 6.5
NOTES ON USE (See Safety Data Sheet)

Safety And Handling

Prior to handling and use of any of the materials referenced in this document, the Safety Data Sheets should
be read and understood by all personnel in contact with these materials.
KEEP OUT OF REACH OF CHILDREN

STORAGE
Dry indoor storage at temperatures between 40 °F and 100 °F (4.4 °C and 37.8 °C) is recommended, away
from any incompatible materials referenced in the Safety Data Sheets. All containers should be tightly
closed when not in use.
DISPOSAL
Any disposal of the materials referenced in this document should be in accordance with all applicable
federal, state, providential, and local regulations. The process solution can contain components other than
those present in the materials as supplied. Analysis of process solutions may be required prior to disposal.

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