Description
DYKEM® Cross Check™ Torque Seal® Tamper-Proof Indicator Paste in white provides a highly visible torque mark to identify fastener movement or tampering. This fluorescent inspection-grade paste creates a bead that breaks when disturbed, giving clear visual evidence of loosening. The bright white color is especially effective on dark surfaces, providing strong contrast for quick inspections in aerospace, automotive, and industrial environments.
Key Features & Benefits
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Tamper-proof torque mark – bead fractures if a fastener loosens
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Highly visible white color – fluorescent under UV/blacklight
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Excellent adhesion – bonds to metals and coated surfaces
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Reduces inspection time – eliminates the need to recheck torque manually
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Warranty protection – provides proof of tampering or loosening
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Meets aerospace standards – Boeing BMS8-45 Type II
Common Applications
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Aerospace and defense assemblies
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Automotive fastener inspections
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Industrial machinery and heavy equipment
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Hydraulic and pneumatic connections
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Plant maintenance and quality control
Technical Specifications
| Property | Value |
|---|---|
| Appearance | White 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 Lockheed Martin, Northrop Grumman, and CPW specs
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Approved replacement for Organic Products F-900 Torque Seal
Compatible Substrates
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Metals including steel, aluminum, titanium, and alloys
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Painted and coated bolts and fasteners
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Assemblies, housings, and industrial equipment
Packaging & Ordering Info
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Part Number (US): 83319
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Part Number (Canada): C83319
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Color: White
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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 distributes the full DYKEM® Cross Check™ Torque Seal® line, offering aerospace-grade performance in every available color.
👉 For technical support or volume pricing, contact [email protected] or call 800-220-1966.






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