Description
DYKEM® Cross Check™ Torque Seal® Tamper-Proof Indicator Paste in pink offers an instantly recognizable torque mark to confirm whether fasteners have been loosened or tampered with. When applied, it forms a bead that fractures upon movement, providing quick visual evidence. The bright pink color, which fluoresces under UV light, stands out clearly for inspections in aerospace, automotive, and industrial environments.
Key Features & Benefits
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Tamper-proof torque mark – bead breaks if a bolt, nut, or fitting is disturbed
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High-visibility pink color – fluorescent under blacklight for easy inspection
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Excellent adhesion – bonds to metals, coatings, and assemblies
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Reduces inspection time – no need to recheck every fastener manually
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Warranty protection – tamper-evidence for compliance needs
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Meets aerospace standards – Boeing BMS8-45 Type II
Common Applications
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Aerospace and defense fastener marking
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Automotive assembly and inspection
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Hydraulic and pneumatic fittings
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Heavy equipment and industrial machinery
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Quality control in manufacturing plants
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Pink liquid |
| Dry to Touch | 30–40 minutes |
| Cure Time | 80% in 48–72 hrs; full cure in 7–10 days |
| Fluorescence | Visible under UV/blacklight |
| Flash Point | 105.1 °F (40.6 °C) |
| Boiling Point Range | 276.9 – 485.1 °F (136.1 – 251.7 °C) |
| VOC Content | 42.28%, 430 g/L |
| Shelf Life | 3 years |
| Boeing Specification | BMS8-45 Type II |
Compliance & Certifications
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Boeing BMS8-45 Type II approved
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Meets Northrop Grumman, Lockheed Martin, and CPW specifications
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Approved replacement for Organic Products F-900 Torque Seal
Compatible Substrates
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Metals such as steel, aluminum, titanium, and alloys
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Painted and coated bolts or fasteners
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Assemblies, housings, and structural connections
Packaging & Ordering Info
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Part Number (US): 83320
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Part Number (Canada): C83320
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Color: Pink
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Size: 1 oz tube
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Case Quantity: 24 units
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Shelf Life: 3 years
Available Cross Check™ Colors
| Color | Part No. (US) | Link |
|---|---|---|
| 🟠 Orange | 83314 | View Orange |
| 🟢 Green | 83315 | View Green |
| 🔴 Red | 83316 | View Red |
| 🟡 Yellow | 83317 | View Yellow |
| 🔵 Blue | 83318 | View Blue |
| ⚪ White | 83319 | View White |
| 🌸 Pink | 83320 | View Pink |
| ⚫ Gray | 83321 | View Gray |
Why Choose Chemical Concepts?
Chemical Concepts is a trusted distributor of DYKEM® Cross Check™ Torque Seal®, offering all available color options to meet aerospace, automotive, and industrial compliance needs.
👉 For technical questions or bulk pricing, contact [email protected] or call 800-220-1966.







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