Weather Worker™ 100% J29A

Chemicals | Liquids | Water Repellents


Weather Worker™ 100% J29A is a proprietary 100% silane that penetrates into concrete or masonry and provides long term weatherproofing protection. Weather Worker 100% J29A is a single component product that is ready to use and typically requires only one application.

The silane molecule can penetrate deeper into the substrate than conventional sealers and even deeper than a typical siloxane sealer. Once the silane molecule penetrates the surface it chemically reacts with, and bonds to, the concrete or masonry substrate. As a result of the strong chemical bond, silane waterproof protection will last many times longer than conventional coatings.

Weather Worker 100% J29A will not darken the surface or leave a visible surface film. It is ideal for aesthetic / architectural surfaces.

V.O.C. Content: <250 g/L

PROP65 WARNING: This product can expose you to chemicals known to the state of California to cause cancer or birth defects or other reproductive harm. For more information go to  (Methanol).

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  • Small silane molecules result in deep penetration
  • Outstanding protection against deicing salts and chloride
  • Will not change the traction or skid resistance of a surface
  • No color change/will not darken surface
  • Strong chemical bond to the substrate
  • Can be applied down to 32°F (0°C)
  • Dries quickly, can be reopened to traffic within one hour
  • Improves adhesion for solvent based paints
  • Active Material - 100% minimum by weight
  • Drying Time: 1 hr. at 70°F (21°C)
Weather Worker™ 100% J29A provides outstanding long term weatherproof protection and will dramatically increase the life expectancy for all types of concrete and masonry surfaces.  Weather Worker 100% J29A dries quickly, allowing traffic to be reopened within one hour. Weather Worker can be applied in cold temperature, down to 32°F (0°C).
Weather Worker 100% J29A Protects All Types of Structures (New and Old):
  • Cast-In-Place and Precast Concrete
  • Exposed Aggregate
  • Mortar
  • Stucco
Weather Worker™ 100% J29A Prevents or Inhibits:
  • Moisture Penetration
  • Attack by Deicing Salts and Chloride Ions
  • Reinforcing Steel and Precast Anchor Corrosion,
  • Mildew and Leaching
  • Attack by Airborne Industrial Chemicals
  • Spalling Caused by Freeze-Thaw Cycles
  • Efflorescence
  • Surface Scaling


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