Bondaflex Sil 100 Series 100% RTV Silicone


Bondaflex Sil 100 GP is a general purpose, one-component, non-sag, elastomeric, 100% RTV acetoxy silicone sealant. Meets the requirements of ASTM C-920, Type S, Grade NS, Class 25, Use NT, G, A, O; TT-S-01543A, Class A; CAN/CGSB-19.13-M87, recognized under UL QMFZ2, MIL-A-46106, USDA approved for incidental food contact, NSF Standard 51 for direct food contact and California Air Resources Board 2003 requirements for volatile organic compound content. Maintains elastomeric properties up to 450° F.


  • Ready to use, labor cost reduction 
  • Excellent flexibility for dynamic joint movement & dissimilar materials 
  • Bonds to most substrates without priming 
  • Move assembled or sealed parts quickly 
  • Wide service temperature/durability 
  • Speed and ease of application 
  • Matches a variety of substrates

Where to Use:

  • Construction Application
    • Sealing & glazing of windows, doors and skylights, conventional glazing, countertops, backsplashes, sanitary seals, kitchen and bath, HVAC, plumbing, roofing 
  • Industrial Application 
    • Heating and refrigeration units, sealing trucks/trailers/RVs, marine cabins, appliance trim 
  • Structure 
    • Buildings/schools, prisons, store fronts - location • horizontal and vertical, interior and exterior, above grade
  • Location
    • Horizontal and vertical, interior and exterior, above grade 
  • Substrate 
    • Glass, aluminum, tile, fiberglass, plastic, ceramic, wood, steel, natural stone and painted metals
Typical Properties (Cured):

Movement Capability, % ± 25
100% Modulus, psi (MPa) 55 (0.38)
Hardness, Shore A 20± 5
Tensile Strength, psi (MPa) 200 (1.37)
Elongation at Break, % 500
Peel Strength, pli 20
Bond Durability on glass and aluminum ± 25
Accelerated Weathering (10,000 hrs) No Change
Volume Resistivity, ohm-cm 1.5 x 10^15
Dielectric Strength, volts/mil 550
Dielectric Constant at 100 Hz 2.8
Dielectric Constant at 100 kHz 2.8
Dissipation Factor at 100 Hz 0.0015
Dissipation Factor at 100 kHz 0.0015
*Cured 7 days @ 77°F (25°C) and 50% RH

Typical Properties (Uncured):

Skin Over Time 10 min.
Tack-Free Time 25 min.
Cure Rate 1/8" per 24 hrs
Extrusion Rate g/min
1/8" orifice @ 90 psi
Slump of Sealants nil
Rheological, Vertical @ 120°F (49°C) non-sag
Volatile Organic Content 3.50% by wt
36 g/L
0.30 lbs/gal
Service Temperature -80° to 450°F
500°F intermittent
-62.2° to 232.2°C
260°C intermittent
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