Dow -DOWSIL™ 790 Silicone Building Sealant

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What is DOWSIL™ 790 Silicone Building Sealant?
A one-part, ultra-low-modulus, neutral-curing silicone elastomeric sealant for use in high-movement weathersealing applications.

Category: caulking compounds | caulks | elastomeric sealants...

MasterFormat: Joint Protection | Joint Fillers | Joint Sealants



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Corporate Center
PO Box 994
Midland, MI 48686
Tel: (586) 496-4000

fixspec@dow.com

https://www.dow.com/en-us.html

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Overview


DOWSIL™ 790 Silicone Building Sealant


What is DOWSIL™ 790 Silicone Building Sealant?
A one-part, ultra-low-modulus, neutral-curing silicone elastomeric sealant for use in high-movement weathersealing applications. It has excellent primerless adhesion to concrete and most porous substrates and is available in a wide variety of colors.
Uses

  • Weathersealing joints between natural stone
  • Curtainwall and mullion weatherseal joints
  • Expansion and control weatherseal joints
  • Precast concrete panel and many other construction weatherseal joints
Benefits
  • Suitable for porous substrates
  • Excellent unprimed adhesion to masonry, concrete and natural stone substrates
  • Low-staining and plasticizer free
  • Ultra-low-modulus
  • Extension/compression joint movement capability of +100/-50%
  • Excellent performance even in building joints that experience extreme movement
  • Conforms to ISO 11600F-25LM
  • Excellent weathering properties and resistance to sunlight, rain, snow, and temperature extremes
  • Easy application over a wide temperature range


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Specifications

Application Benefits
Primerless AdhesionPrimerless
Resistance TypeThermal Resistance, UV Resistance, Water Resistance
Water Resistanttrue
Product Use and Formulating
Cure System1-Part Cure
Number of PartsOne
Room Temperature Cure - Hours168 to 336 Hours
Tack-Free Time-50% RH60 Minutes
Where UsedJob Site
Working Time10 to 20 Minutes
Typical Properties
Adhesion toBrickwork, Ceramic, Concrete, Extruded Mill Finish, Glass, Granite, Heat Strengthened Glass, Light-Weight Stone Panels, Limestone, Low E Coated Glass, Marble, Masonry, Paint, Silicone, Stone, Wood
AppearanceOpaque
ChemistryNeutral
Durometer - Shore A15 Shore A
MovementHigh
Peel Strength25 ppi
Shelf Life360 Days
SubstratePorous
Tensile Strength100 psi
Volatile Organic Content23 g/liter