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Pecora DynaFlex SC

Product Description:

DynaFlex™ SC is a tamper resistant security sealant. The product is designed to achieve high tensile and tear strengths, abrasion resistance and an average ultimate hardness of at least 55, yet withstand 25% total joint movement. This is a unique one-part, non-sag, tamper-resistant elastometric STPU joint sealant with many of the strengths of two-component security sealants but with the user-friendly ease-of application properties of a one component sealant. DynaFlex™ SC is more flexible than epoxy in composition and is available in 10.1 oz. cartridges in two colors: limestone and tru-white.

Search within these results for:
Item IDDescriptionPkg OfQuantity
PEC P-120
Pecora DynaFlex™ SC P-120 Primer for Use on Non-Porous Aluminum & Glass, 1 Quart1
PEC P-75
Pecora DynaFlex™ SC P-75 Primer for Use on Porous Substrates, 1 Quart1
PEC SC-10.1L
Pecora DynaFlex™ SC Security Sealant, Limestone, 10.1 oz. Cartridges24
PEC SC-10.1W
Pecora DynaFlex™ SC Security Sealant, White, 10.1 oz. Cartridges24
ALB DL-45-17
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20oz Special Deluxe Suck Up Manual Bulk Gun w/ Orange Cone Nozzles, Albion DL-45-171
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Manual Cartridge Caulking Gun, 1/10 Gallon, B-Line w/ 12:1 Drive, Albion B121
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1/10 Gallon B-Line Manual Cartridge Gun w/ High Thrust 26:1 Drive, Albion B261

Basic Uses:

  • This rugged but flexible sealant is ideally suited for use in institutional and correctional complex security installations.
  • Performs equally well in other public buildings and facilities where ordinary sealants are easily damaged or torn out by tampering and acts of vandalism.
    • Change in plane expansion and contraction joints:
      • Floor to wall
      • Head of wall
      • Inside corners
    • Fixture perimeters: lights, mirrors, sinks, etc.
    • Door perimeters: Frame to wall, gypsum, concrete block
    • Window perimeters: Frame to wall, gypsum, concrete
    • Glazing: Glass or Plaxiglass to frame , Laminated Lexan
    • Exterior expansion joints in building facades: Masonry, Pre-cast, Block, Concrete
    • Interior seams: Steel, Stainless Steel, Masonry, Window Frames, and Fixtures


Security caulking requires exceptional adhesion, particularly in containment areas like inmate cells, etc. Since the sealant’s higher hardness puts extra stress on the bond line, P-75 primer should always be used on porous substrates to obtain the proper adhesion. Steel, aluminum, polycarbonate and glass should be primed with P-120.


Should not be used where it may come into contact with food products, or harsh chemicals such as acids, strong alkalis, ketones, etc.