Cp 63 [updated]

In the industrial and manufacturing world, is most widely recognized as a high-grade Polysulfide Polymer or a specialized Epoxy Curing Agent . However, the most dominant use of this keyword relates to CP 63 Sealant — a two-part, solvent-based polysulfide compound used extensively in aviation, marine, and construction.

If you have landed on this page, you are likely searching for technical data, cross-references, or application notes regarding CP 63 . Depending on your industry, "CP 63" can refer to a high-performance adhesive sealant, a specific industrial chemical compound, or less commonly, a vintage railway locomotive model. In the industrial and manufacturing world, is most

If you are searching for , use these OEM numbers rather than "CP 63" for accurate results. Frequently Asked Questions (FAQ) Q1: Can CP 63 be used underwater? Yes , but only after a full 7-day cure. For active leaks, use a specialized hydraulic sealant. Q2: What is the shelf life of CP 63? Unmixed components stored at 18–27°C last 12–18 months . Never freeze. Opened containers spoil within 30 days due to moisture absorption. Q3: Does CP 63 contain isocyanates? No. Unlike polyurethane sealants, polysulfides are isocyanate-free, making them safer for workers with respiratory sensitivity. Q4: How do I remove cured CP 63? Mechanical abrasion (wire brush, sanding) or immersion in a dichloromethane-based stripper. No solvent softens cured polysulfide quickly. Q5: Is CP 63 the same as "aircraft fuel tank sealant"? Yes — it is a generic name for that category. However, always verify the exact MIL-SPEC for your aircraft model. Conclusion: Is CP 63 Right for Your Project? CP 63 remains a gold standard in niche applications requiring extreme fuel resistance and low-temperature flexibility. For the aerospace engineer or marine fabricator, there is no substitute. However, for general construction or DIY projects, modern polyurethanes or MS polymers offer easier handling and better UV stability at a fraction of the cost. Depending on your industry, "CP 63" can refer

For specific technical data sheets or to locate a distributor near you, visit Chemetall, PPG Aerospace, or Flamemaster’s official websites. The information provided in this article is for general reference only. Always consult the manufacturer’s Safety Data Sheet (SDS) and technical data sheet (TDS) for the specific CP 63 product you intend to use, as formulations vary between brands.