1252 - 3M - Datasheet.Live

Scotch-SealTM

Tamper Proof Sealant

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Product Description 3M™ Scotch-Seal™ Tamper Proof Sealant 1252 is a fast drying, anti-tamper sealer

which is fire retardant.

Features • Can be applied over adjustable or removable parts to indicuate changes in

adjustment or other evidence of tampering by a break in the seal when the

part is altered in position.

• Has been effectively used in the electronics industry to protect settings and

calibrations of electronic equipment against tampering, to seal electronic

components between stages of assembly, to aid in the visual inspection

of subassembly components, equipment and parts which are restricted to

adjustment, alteration, or access by qualified personnel.

• Exposed surfaces will accept ink from an inspector’s approv al stamp and

can be marked as soon as 20 seconds after the sealer application.

Technical Data November, 2009

Typical Physical

Properties Note: The follo wing technical information and data should be considered representativ e

or typical only and should not be used for specification purposes.

Viscosity (approx.): 500 - 2500 cps

Brookfield Viscometer: RVF #6 sp . @ 4 rpm @ 77°F (26°C)

Solids (by wt): 61 - 73%

Base: Nitrile

Color (wet and dry): White

Net weight (approx.): 13.1-14.1 lbs.

Flash point: 20°F (-4°C)

Solvent: Meth yl ethyl ketone (MEK)

Handling/Application

Information Application: One-part, air drying compound suitable for hand extruding from

a collapsible metal tube. Surfaces must be clean, dry and dust free.

Cleanup: Excess sealant may be remov ed from application equipment with a solvent

such as 3M™ Scotch-Grip™ Solvent No. 3 or methyl ethyl ketone (MEK).*

*Note: When using solv ents, e xtinguish all ignition sources, and follow the

manufacturer’s precautions and directions for use.

3M™Scotch-Seal™

Tamper Proof Sealant

1252

Typical Performance

Characteristics Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

•Drying Time: A 1/8" layer of 3M™ Scotch-Seal Tamper Proof Sealant 1252 is

tack-free in 20 seconds and suitable for stamping with ink.

•Hardness: After 24 hours @ 77°F (25°C), 50% R.H., has a Shore A hardness

of 97-99.

•Friability: Easily crumbled when the surface to which it is applied is flexed or

twisted.

•Flammability: Dry film of the sealant is fire retardant and flames will extinguish

themselves within 15 seconds.

•Dielectric Strength: 100 volts/mil, minimum, Fed. Standard #406, Method 4031.

•Surface Resistivity: 1010 ohms, minimum, Fed. Standard #406, Method 4041.

•Volume Resistivity: 1010 ohms-cm, minimum, Fed. Standard #406, Method 4041.

•Heat Resistance: Dried for 24 hours @ 77°F (25°C) 50% R.H., withstands

200°F (93.3°C) for 72 hours without loss of adhesion or sagging.

•Fluid Resistance: Cured 24 hours @ 77°F (25°C) 50% R.H. was immersed in

the following fluids:

MIL-L-7808 Oil Moderate softening; good adhesion

Aviation Gas (115/145) Slight softening; good adhesion

3% Salt Water No effect

Tap Water No effect

JP-4 Fuel Slight softening; good adhesion

•Adhesion Overlap (Shear Strength) Aluminum (Alclad) Steel

Average of 6 173 psi 164 psi

1" x 11/2" overlap – 10 mil thick bond line. Specimens were cured for 24 hours

@ 77°F (25°C).

•Overlap Shear: 1" x 11/2" – 10 mil thick films cured 24 hours @ 77°F (25°C).

•Corrosion: After 72 hours @ 77°F (25°C) there is no evidence of corrosion on

steel, aluminum, brass or silver.

•Low Temp. Shock: Dried films 1/16" thick withstand 3 foot-lbs. shock at -20°F

(-29°C) without loss of adhesion.

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Storage Store at 60-80°F (16-27°C) for maximum storage life. Higher temperatures

reduce normal storage life. Lower temperatures cause increased viscosity of a

temporary nature. Tubes must be stored in an inverted position (tips down). Rotate

stock on a “first in-first-out” basis.

Shelf Life When stored in the original unopened container, under the conditions recommended,

this product has a shelf life of 9-12 months @ 40°F (4°C).

3M™Scotch-Seal™

Tamper Proof Sealant

1252

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The technical information, recommendations and other statements contained in this document are

based upon tests or experience that 3M believes are reliable, but the accuracy or completeness of such

information is not guaranteed.

Technical Information

Unless an additional warranty is specifically stated on the applicable 3M product packaging or product

literature, 3M warrants that each 3M product meets the applicable 3M product specification at the time

3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR

IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY

OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE.

If the 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s

option, replacement of the 3M product or refund of the purchase price.

Warranty,

Limited Remedy,

and Disclaimer

Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product,

whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted,

including warranty, contract, negligence or strict liability.

Limitation of Liability

This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001:2000 standards.

ISO 9001:2000

Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use

and performance of a 3M product in a particular application. Given the variety of factors that can affect

the use and performance of a 3M product, user is solely responsible for evaluating the 3M product and

determining whether it is fit for a particular purpose and suitable for user’s method of application.

Product Use

3M, Scotch-Seal and Scotch-Grip are

trademarks of 3M Company.

Printed in U.S.A.

Recycled Paper

40% pre-consumer

10% post-consumer

Industrial Adhesives and Tapes Division

3M Center, Building 225-3S-06

St. Paul, MN 55144-1000

800-362-3550 • 877-369-2923 (Fax)