ASI 504



ASI 504 Multi-Purpose Silicone can be used as both a sealant and adhesive for a variety of applications requiring a waterproof seal. It Is a paste-like, one component acetoxy silicone that cures to form a durable solid rubber when exposed to moisture in the air.

ASI 504 will not sag or slump so it can be applied to both vertical and overhead substrates without sagging. It can be used on both interior and exterior applications because it has excellent resistance to weathering, UV degradation, yellowing, etc. ASI 504 will adhere to most metals, woods, porcelain, ceramic, fiberglass, glass, and a variety of substrates not listed.


  • Mold & Mildew Resistant
  • Resistant To UV Degradation & Weathering
  • Withstands Extreme Cold & Extreme Heat
  • One-Component, Easy To Use Formulation
  • Adheres To Most Common Building Substrates
  • Easy To Extrude At Cold Temperatures
  • Non-Slump, Can Use On Overhead & Vertical Applications
  • Excellent For Indoor & Outdoor Applications
  • Creates A Waterproof Seal

Physical properties

Physical PropertiesTest MethodResult
ViscosityASI Test Method675,000 cps (Spindle 7, 4 rpm)
Skin Formation TimeASI Test Method13 minutes (70°F, 50% RH)
DensityASTM D14758 lbs./gal
HardnessASTM C66121 (Shore A)
Extrusion RateASI Test Method632 g/min
Tensile StrengthASTM D412232 DSi
Elongation at BreakASTM D412490%
Application TemperatureASI Test Method-35°F to 150°F
Gun GradeASI Test MethodPass (Non-Slump)
QUV TestingASTM G154Pass (10,000 hrs.)
Service TemperatureASI Test Method-50°F to 400°F
Typical Cure RateASI Test Method24 hrs. (1/8" bead)

Strength will start to develop immediately and continue increasing tor 7 days after application. ASI recommends testing strength and adhesion on the 7th day. ASI 504 suggested application temperature range: -35°F to 150*F. ASI 504 can be used at temperatures higher than 400°F for intermittent periods. Testing should be done to confirm temperature requirements are met.

Information on this data sheet can change without notice and it is therefore not recommended that these figures be used in spec writing. If you have any questions contact manufacturer’s sales and technical service department.

Conforms / Meets / Exceeds

  • ASTM C920 Class 25, Type S, Grade NS, Use NT, G, O
  • TI-S-01543A
  • TT-S-00230-C
  • MIL-A-46106A
  • VOC Compliant (23 grams/liter AST D2369)

Common Substrates

  • Glass
  • Metal
  • Some Fiberglass
  • Some Plastics
  • Most Wood Types
  • Aluminum
  • Ceramic
  • Most Painted Surfaces
  • Natural & Synthetic Fiber

Common Applications

  • Walk-In Freezer
  • Manufacturing & Installation
  • RV & Trailer Manufacturing
  • General Purpose Sealing & Bonding
  • Sealing Precast Concrete Forms
  • Industrial Manufacturing Applications
  • Bathroom Installation & Sealing
  • HVAC Applications
  • Fireplace Manufacturing
  • Sheet Metal Work & Sealing

Speak with a sales engineer to discuss ASI 504 or any of our other products or manufacturing services! Use our contact form or call 800-325-7040 now.