Description
DYKEM® Cross Check™ Torque Seal® Tamper-Proof Indicator Paste in blue is engineered to provide quick and reliable visual detection of tampering or fastener loosening. Once applied, the cured bead will break if a bolt, nut, or fitting is disturbed. Its fluorescent color makes inspection simple under both normal and UV light. Ideal for aerospace, automotive, heavy equipment, and manufacturing operations, this torque seal improves safety while reducing inspection time.
Key Features & Benefits
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Tamper-proof torque mark – breaks if a fastener is moved or loosened
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Bright blue color – fluorescent under blacklight for enhanced visibility
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Strong adhesion – adheres to metals, coatings, and assemblies
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Speeds up inspections – eliminates the need for frequent re-torquing
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Warranty protection – tamper evidence helps with compliance and QA
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Meets aerospace standards – Boeing BMS8-45 Type II approved
Common Applications
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Aerospace assemblies and inspection protocols
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Automotive bolts and quality control checks
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Hydraulic and pneumatic connections
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Heavy machinery and equipment inspections
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Plant maintenance and industrial fastener marking
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Blue 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 compliant
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Meets Northrop Grumman, Lockheed Martin, and CPW specs
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Approved replacement for Organic Products F-900 Torque Seal
Compatible Substrates
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Metals (steel, aluminum, titanium, alloys)
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Painted or coated fasteners
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Assemblies, housings, and other substrates
Packaging & Ordering Info
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Part Number (US): 83318
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Part Number (Canada): C83318
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Color: Blue
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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?
As an authorized distributor, Chemical Concepts carries the complete line of DYKEM® Cross Check™ Torque Seal® colors, trusted for aerospace, automotive, and industrial fastener security.
👉 For technical guidance or bulk ordering, reach us at [email protected] or call 800-220-1966.
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