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DynaFlex SC Security Sealant

Pecora DynaFlexTMSC
PECORA SC-10.1W 10.1 oz-300ml cartridges white 1 30
PECORA SC-10.1L 10.1 oz-300ml cartridges limestone 1 30
PECORA P-75 1 quart primer for use on
porous substrates
1 6
PECORA P-120 1 quart primer for use on
non-porous surface
1 6
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Typical Physical Properties (77oF, 50% RH)
1/4" Cure Through (hours) 48 Pecora Corporation
Adhesion to Concrete (pli) 35 ASTM C794
Elongation, ultimate (%) 250 ASTM D412
Hardness, Shore A Ultimate* 55 ASTM C661
Tack Free Time (minutes) 90 ASTM C679
Tear Strength (ppi) 50 ASTM D624 Tensile Strength, ultimate (psi) 300 ASTM D412 VOC Content (g/L) 90 ASTM D3960
*Hardness may fluctuate from this value due to variations in humidity and temperature at time of application

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Where can DynaFlex be used?

Product Description

DynaFlexTM 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. As a result, this rugged but flexible sealant is ideally suited for use in institutional and correctional complex security installations. It also performs equally well in other public buildings and facilities where ordinary sealants are damaged or torn out by idle tampering and acts of vandalism.

DynaFlexTM SC is a unique one-part, non-sag, tamper-resistant elastomeric 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.

DynaFlexTM SC is more flexible than epoxy in composition and is available in 10.1 oz. cartridges in two colors: limestone and tru-white.

Where can DynaFlex be used?

  • 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 block
  • Glazing:
    Glass to frame/ Laminated Lexan or Plexiglass to frame
  • Exterior expansion joints in building facades:
    Masonry, Pre-cast, Block, Concrete
  • Interior seams:
    Steel, Srainless 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.

The sealant should not be used where it may come into contact with food products. Nor should it be used in areas where it may be subjected to harsh chemicals such as acids, strong alkalis, ketones, etc.