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303WB Water-Based Siloxane Water Repellent


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303WB Water-Based Siloxane Water Repellent DOCUMENTS & DOWNLOADS
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Description

303WB is a VOC compliant, penetrating, breathable, siloxane product for use on precast and site cast concrete, clay and concrete masonry, sandstone and stucco surfaces where surface darkening is unacceptable.

  • Reduces bonding of airborne dirt and hydro-carbons
  • Reduces water damage caused by freeze/thaw cycles
  • Provides protection against efflorescence and exhibits excellent resistance to ultraviolet rays and chlorine ions
  • Exceeds requirements of NCHRP 244, meets SSW 110C Federal Specification and ASTM E514

FOR MASONRY/SURFACE TYPES:
Formulated for use on Precast And Site Cast Concrete, Clay and Concrete Masonry, Sandstone and Stucco Surfaces where surface darkening is unacceptable

NOTES/LIMITATIONS:

  • NOT recommended for marble, travertine, limestone, polished granite, gypsum, plaster or syntheic resin paint
  • Do NOT allow product to freeze, store at room temperature (65°F)

SIZES: 1, 5 & 55 Gallons


Water-Based Siloxane Water Repellent Application

  • Air and surface temperatures must be 40°F or higher at time of application, do NOT apply product when rain is expected within 4 hours.
  • Re-pointing should be done and allowed to dry before application, caulking must be done and allowed to cure or until material is set, as per manufacturer's instructions.
  • Protect surrounding non-masonry surfaces such as glass, aluminum, painted surfaces etc., any inadvertent drips, splashes or runs should be removed with water before solution has dried on the surface.
  • Apply at full strength using a low-pressure sprayer for optimum performance.
  • Work from bottom to top applying a light mist and then following up with a full flood coat with minimum 8” to 12” run down.
  • A second coat may be necessary on extremely porous surfaces.
  • Apply a single saturating application for horizontal surfaces, taking care to brush out any pooling liquid.
  • For detailed instructions, download the Technical Data Sheet for this product.
  • Suggested Dilution Rates for 300WB Water-Base Siloxane Water Repellent
  • Must be applied as packaged and per recommendations, do not alter or dilute this product
  • Coverage Rates for 300WB Water-Base Siloxane Water Repellent
  • Project Materials/Conditions Coverage
    Clay Brick 100-150 sq. ft. per gal.
    Cement Brick 80-120 sq. ft. per gal.
    Concrete Block 60-80 sq. ft. per gal.
    Smooth Concrete (precast) 100-150 sq. ft. per gal.
    Smooth Concrete (steel troweled) 150-200 sq. ft. per gal.
    Stucco 125-175 sq. ft. per gal.
    Exposed Aggregate 100-150 sq. ft. per gal.
    Natural Stone (Rock Face) 100-150 sq. ft. per gal.
    Natural Stone (Smooth Cut) 125-175 sq. ft. per gal.





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