Loctite SF 7400 Torque sealant tamper-proof Varnistop® red 20ml bottle

LOCTITE® SF 7400 Varnistop® Red is a 1-part, red, solvent-based ink, ideal for tamper-proofing adjustment points or marking components to indicate they have been set or tested. It dries quickly by solvent evaporation to form a pigmented film of organic polymer.

• Pack size: 20 ml bottle (Loctite no. 1151333)
• Also available in: 500 ml can

Application

• For use on electronic equipment
• The product dries quickly and has excellent adhesion to a range of materials
• It is ideal for tamperproofing adjustment points or marking components to indicate they have been set or tested

Characteristics 

• Service/operating temperature: -35°C to 145°C (-31°F to 293°F)
• Provides clear visual indication
• Excellent adhesion
• Fast curing

Technical specifications

Technology	Solvent based
Chemical type	Pigmented organic polymer
Appearance	Red liquid
Cure	Solvent evaporation
Viscosity, Brookfield, 20°C, mPa·s (cP)	1,030 (Spindle 4, speed 60 rpm)
Solids content, %	22.5
Tack Free Time (100 µm), minutes	5
Dry time (100 µm), hours	5 to 7

Product description

LOCTITE® SF 7400™ dries by the evaporation of solvent to leave a pigmented film of organic polymer. When fully dried, it has excellent visibility and shows good adhesion to a wide range of polymers and metals. Even when fully dried, LOCTITE® SF 7400™ will re-dissolve in solvents but the rate is slow. Removal of the cured film by mechanical action followed by wiping off the residues with butyl acetate or MEK is the most effective method of removal.

General information

This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials. 

Direction for use

1. Some settling of the pigment will occur on storage. Thoroughly shake the container to re-disperse the pigment prior to use.
2. Allow the product to stand before use to eliminate air bubbles created by the pigment dispersion step.
3. Apply LOCTITE® SF 7400™ to the surface.
4. Thin films of LOCTITE® SF 7400™ (100 micron) will dry in approximately 5 minutes to a tack free surface at room temperature. Thicker films will dry on the surface in approximately 5 minutes but will require a longer time for thorough drying. LOCTITE® SF 7400™ will be completely dry in approximately 6 hours.
5. Product can be removed by wiping with solvents (eg. MEK or butyl acetate) while it is still liquid.
6. Consult your local Henkel® Technical Services Center for information on automatic application equipment which is suitable for use with LOCTITE® SF 7400™

Storage

The product is classified as flammable and must be stored in an appropriate manner in compliance with relevant regulations. Do not store near oxidizing agents or combustible materials. Store product in the unopened container in a dry location. Storage information may also be indicated on the product container labelling.
Optimal Storage: 8°C to 21°C. Storage below 8°C or greater than 28°C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated. If additional information is required, please contact your local Henkel representative.

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Hazard Information (CLP)

 

Signal word: Danger

Hazard Statements (H-phrases)

• H225: Highly flammable liquid and vapour.
• H319: Causes serious eye irritation.
• H336: May cause drowsiness or dizziness.
• H351: Suspected of causing cancer.

Additional Labelling (EUH-phrases)

• EUH066: Repeated exposure may cause dry or cracked skin.

Precautionary Statements (P-phrases)

For private consumers:

• P101: If medical advice is needed, have product container or label at hand.
• P102: Keep out of reach of children.
• P501: Dispose of contents/container in accordance with local regulations.

Prevention:

• P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P261: Avoid breathing vapour.
• P280: Wear protective gloves/protective clothing.

Response:

• P337+P313: If eye irritation persists: Get medical advice/attention.

Storage:

• P403+P235: Store in a well-ventilated place. Keep cool.

 

Information on product safety (Manufacturer, Contact)

Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com