Description
DYKEM® Cross Check™ Torque Seal® Tamper-Proof Indicator Paste in yellow provides a quick, visual way to confirm if critical fasteners, bolts, or connections have been loosened or tampered with. The fluorescent bead breaks if a fastener moves, making inspections faster, safer, and more reliable. Widely used in aerospace, automotive, heavy equipment, and defense, the yellow color offers excellent visibility under normal light and UV illumination.
Key Features & Benefits
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Tamper-proof torque mark – breaks if a fastener is disturbed
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Highly visible yellow color – fluorescent under blacklight for easy inspection
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Excellent adhesion – bonds to metals, fasteners, and most substrates
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Reduces inspection time – no need to re-torque every fastener
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Provides warranty protection – tamper evidence for compliance requirements
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Aerospace-qualified – meets Boeing BMS8-45 Type II
Common Applications
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Aerospace assemblies and quality control
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Automotive bolt and fastener inspections
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Hydraulic and pneumatic fittings
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Plant equipment and machinery maintenance
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Defense and industrial manufacturing
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Yellow 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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Lockheed Martin, Northrop Grumman, and CPW specification compliant
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Approved replacement for Organic Products F-900 Torque Seal
Compatible Substrates
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Steel, aluminum, titanium, and other metals
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Painted or coated bolts and fasteners
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Assemblies, housings, and other industrial substrates
Packaging & Ordering Info
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Part Number (US): 83317
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Part Number (Canada): C83317
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Color: Yellow
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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 a trusted distributor, Chemical Concepts supplies the complete line of DYKEM® Cross Check™ Torque Seal® colors, ensuring compliance, safety, and efficiency across industries.
👉 For technical support or bulk pricing, email [email protected] or call 800-220-1966.
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