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How quickly do the cracks grow?

  • Very slowly, as extensive research by Luxfer and outside laboratories has shown. 
  • No scientific evidence supports rumors and claims of "fast crack growth." 
  • Cracks typically take eight or more years to grow large enough to cause a cylinder leak. 
  • Because SLC growth is so slow, properly trained inspectors have adequate opportunity to detect cracks during the normal requalification process.

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