LUBRICATIVE PIGMENT Molybdenum Disulfide
SPECIFICATIONS QPL-46147 SFL-17A form 1
QPL-46147 SFL-17B form 2
exceeds the requirements of MIL-L-23398
WEAR LIFE
ASTM D2625A (6 & 18 hour dry) 100 -200 minutes
LOAD CARRYING CAPACITY
ASTM D2625B (6 & 18 hour dry) 2750 - 3000 lbf
CORROSION PROTECTION
Surface preparation
Steel MIL-DTL-16232 type Z class 3
Aluminum MIL-A-8625 type 2
ASTM B117 (6 & 18 hour dry) 1000 hours*
FED-STD-791 Method 5331.1
sulfurous-acid salt spray 4 cycles*
* Tests halted before failure occurred.
COMPOSITION AND PHYSICAL PROPERTIES
GENERAL DESCRIPTION
Sandstrom 28A Solid Film Lubricant is a lacquer-like
coating containing molybdenum disulfide and corrosion
inhibiting pigments. This Air Drying material prevents
corrosion, galling, seizing and fretting. It is a low-friction
coating which exhibits long wear life when operated at
-320oF to +500oF under loads exceeding 100,000 psi.
Sandstrom 28A should be applied where baking with
the longer wearing, heat cured #099, Sandstrom 9A or
LC-300 is not desirable.
Excellent Corrosion Protection without the use of toxic
heavy metals and the use of non-HAP solvents are its
outstanding characteristics.
Once Sandstrom 28A has been applied to a properly
prepared surface and allowed to cure, it is virtually unaffected
by atmospheric and fretting corrosion, solvents, acids, oils
and degreasers. Sandstrom 28A can be applied to all
metallic and non-metallic surfaces by spray application.
Complete application instructions are on page two of this
Technical Information Guide.
WEIGHT PER GALLON 9.90 + .2 lbs
(theoretical)
SOLIDS CONTENT 24% form 1 or 30
(by weight minimum) grams solids form 2
VOC 5.06 lbs/gallon
(theoretical)
VISCOSITY 15 to 25 seconds
(at 77oF) #2 EZ Zahn
OPERATING TEMP. RANGE -320OF to +300OF
FLUID RESISTANCE Pass
MIL-PRF-46147 Table 1 Immersion Fluids
MIL-L-23398 Table 3 Test Fluids
ASTM D2510 A&C (6 & 18 hour dry)
THERMAL STABILITY Pass
ASTM D2511
COLOR Flat Dark Gray
SHELF LIFE 1 year from date of shipment
PORT BYRON, IL 61275 ? (309) 523-2121
1-800-747-1084 FAX # 1-309-523-3912
www.sandstromproducts.com
TECHNICAL INFORMATION GUIDE
SANDSTROM 28A CONTAINS
NO GRAPHITE, TOXIC HEAVY METALS,
OR HAP SOLVENTS
RECOMMENDED USAGE
Sandstrom 28A is an excellent in-plant or field solution to
the problem of lubricating parts:
? Where application of a baked-on lubricant is not possible
? Which may be operated in corrosive atmospheres
? That may be stored for long periods
? Which are seldom lubricated once they leave the factory and
where permanent lubrication is desired
? Where operating pressures exceed the load-bearing capacities
of ordinary oils and greases
? Where "clean operation" is desired
(Sandstrom 28A will not collect dirt and debris as do grease
and oils)
? Where parts may be subjected to frequent disassembly
? Where a protective coating and sacrificial break-in lubricant is
needed
? Where fretting and galling is a problem (such as splines, universal
joints and keyed bearings)
? Where easy release is desired (such as threads of all kinds)
Sandstrom 28A *Replaces our 27A*
FREE OF TOXIC HEAVY METALS
SOLID FILM LUBRICANT
SERIES E728 & E628 EXCEEDS THE REQUIREMENTS OF
MIL-PRF-46147D TYPE I FORM 1 & 2 and MIL-L-23398 TYPE I & II
Sandstrom stock number and NSN designation
DFL-E628-G35-AA2 16 oz. aerosol can NSN 9150-01-360-1905
DFL-E728-G35-GG3 gallon can NSN 9150-00-142-9361
DFL-E728-G35-QQ1 quart can NSN 9150-01-360-1907
DFL-E628-G35-AA2 16 oz. aerosol can NSN 9150-01-566-7396
DFL-E728-G35-GG3 gallon can NSN 9150-01-566-7397
DFL-E728-G35-QQ1 quart can NSN 9150-01-566-7399
NOTICE
Before using this product, read all warnings and safety information
printed on the label, the Material Safety Data Sheet and the Technical
Info-Guide
GENERAL
For maximum service, the APPLICATION INSTRUCTIONS MUST BE
CLOSELY FOLLOWED.
FILM THICKNESS AND ENGINEERING TOLERANCES
As supplied, Sandstrom 28A will yield a film thickness of about .0003
inches without interference. If excess buildup does occur and a force
fit is necessary, burnishing lightly will assist in mating the parts. The
remaining excess will be worn away in the first few cycles of operation.
Whenever possible, the proper tolerances should be designed into the
part.
COVERAGE
One gallon of this material will theoretically cover 500 sq.ft. with a dry
film thickness of .0005 inches. Coverage depends upon methods of
application and other variables; such as, overspray and type of surface
to be coated. Above coverage rates are based on 100% efficiency.
SURFACE PREPARATION
The following surface preparations are recommended for the individual
metals listed in the Application Appendix of the military specification to
develop maximum adhesion, wear life, and corrosion protection. Please
contact Sandstrom Products Company for substitute surface preparations
if recommended steps cannot be followed.
Application on steel. Preclean the steel surface with aliphatic naphtha or
any other EPA compliant cleaner that sufficiently cleans surfaces to pass
ASTM F22. Sandblast the surfaces with 180-220 grit aluminum oxide.
Phosphate IAW MIL-DTL-16232 (weight should be 11-22 g/m2), type M,
class 3 or type Z, class 3.
Application on stainless steels. Preclean the steel surface with
aliphatic naphtha or any other EPA compliant cleaner that sufficiently
cleans surfaces to pass ASTM F22. Sandblast the surfaces with 120
grit aluminum oxide. Passivate the surfaces with ASTM A967, types
nitric 1, nitric 2 or nitric 3, as applicable.
Application on aluminum and aluminum alloys. Preclean the aluminum
surface with aliphatic naphtha or any other EPA compliant cleaner
that sufficiently cleans surfaces to pass ASTM F22. Sulfuric acid
anodize IAW MIL-A-8625 and seal the surface.
Application on titanium and titanium alloys. Degrease the surfaces to
be coated with aliphatic naphtha or any other EPA compliant cleaner
that sufficiently cleans surfaces to pass ASTM F22. Sandblast the
surface with 180-220 grit aluminum oxide and alkaline anodize.
Application on copper and copper alloys. Preclean the copper
surface with aliphatic naphtha or any other EPA compliant cleaner that
sufficiently cleans surfaces to pass ASTM F22. Sandblast the surfaces
with 180-220 grit aluminum oxide. Form a black oxide finish on the
surfaces.
IMPORTANT! AVOID TOUCHING THE SURFACES TO BE
COATED WITH THE FINGERS--OIL FROM THE HANDS WILL
INTERFERE WITH PROPER COATING ADHESION.
Whenever possible treat both contact surfaces
(i.e., the shaft and the bearing).
APPLICATION
Apply Sandstrom 28A as supplied by conventional spray.
If reduction is desired, use 3 parts Sandstrom 28A to 1 part
D169 Thinner.
Note: Sandstrom 28A may also be applied by dipping
(no thinning required).
*STIRRING
IMPORTANT! THIS LUBRICANT CONTAINS HEAVY
PIGMENTS WHICH SETTLE RAPIDLY. THEREFORE, IT
SHOULD BE STIRRED THOROUGHLY BEFORE USE AND
CONTINUOUSLY DURING APPLICATION.
Sandstrom 28A should be sprayed or dipped to the desired
film thickness (usually .0003 to .0007 inches). Allow the
surface to dry at least 30 minutes to 1 hour before doing light
assembly work.
Note: All instructions are based on product and part temperatures
of 770F +/- 50F and <70% relative humidity. Should product
need temperature adjustments use a hot or cold water bath.
DRYING
This material may be force dried by using moving hot air or
infrared bulbs. Air drying 24 hours will yield maximum
hardness. After a flash time of 30 minutes, Sandstrom 28A
can be force-cured at 250 - 3000F for one hour.
Note: Start time when parts reach temperature.
CLEANUP
Use the same solvents for cleaning tools as are recommended
for thinning or use MEK
REMOVAL OF Sandstrom 28A
In the event it is necessary to remove Sandstrom 28A,
physical removal is best (such as grit blasting, sanding or
grinding).
*Strict compliance to the instructions given in Surface Preparation
and Stirring is essential to obtain optimum results.
STORE AT TEMPERATURES BETWEEN 500F AND
1000F
Page 2; Series E728 & E628 Sandstrom 28A
IMPORTANT NOTICE TO BUYER / WARRANTY AND LIMITATIONS ON OUR LIABILITY
We warrant our products to be free of manufacturing defects, and that they meet our current published physical properties and specifications. All information and suggestions presented are
rendered gratis and is accurate to the best of our knowledge. They are based on technical data which we believe to be reliable, and are intended for use by persons having skill and “know-how,”
at their own discretion and risk. Prior to use, customers are cautioned to determine the suitability of our products for any given application through their own testing. NO WARRANTY IS MADE,
EXPRESS OR IMPLIED, REGARDING SUCH INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS OBTAINED FROM IT'S USE OR THAT OUR PRODUCT SHALL BE
MERCHANTABLE OR FIT FOR ANY PARTICULAR PURPOSE. SUCH STATEMENTS ARE NOT INTENDED TO SUGGEST INFRINGEMENT OF ANY PATENT. Since conditions of use of our products
are beyond our control, all suggestions and statements are made without guarantee, warranty or other responsibility, express or implied, on our part. We assume no responsibility for results
obtained, or damages incurred, from their use beyond replacing material proved to be defective or refunding the purchase price of such material at our option. Acceptance of delivery of our
product means you have accepted the terms of this warranty, whether or not purchase orders or other documents state terms that vary from this warning. No seller is authorized to make any
representations or warranty or assume any other liability on our behalf with any sales of our products. SANDSTROM PRODUCTS COMPANY 10/17/2011