DESCRIPTION
USES
BENEFITS
LIMITATIONS
DIRECTIONS
APPLICATION
DRYING TIME
CLEAN UP
HEALTH & SAFETY
LIMITED WARRANTY
AVAILABILITY & COST
PHYSICAL PROPERTIES
TECHNICAL DATA
TECHNICAL SERVICES
DESCRIPTION:
ChimneySaver WB is a penetrating water repellent which contains a proprietary modified siloxane. This water-based siloxane penetrates most masonry and concrete pores and capillaries up to 1/4 inch or more depending on surface porosity and moisture content at the time of application.

ChimneySaver WB reacts with the silica in concrete and masonry in the presence of ultraviolet light and atmospheric moisture. This reaction forms strong permanent bonds beneath the surface and creates a hydrophobic zone that prevents water molecules from penetrating, while allowing free migration of water vapors. The chemical bonds formed in this process allow ChimneySaver WB to become an integral part of the substrate and provide long-term water repellent protection.
USES:
ChimneySaver WB can be used on most vertical or horizontal exterior, above-grade masonry surfaces including:
  • Adobe; Architectural concrete
  • Precast or cast-in-place
  • Clay Brick
  • Mortars
  • Natural Stone
  • Limestone
  • Granite
  • Sandstone
  • Terra Cotta
  • Exposed Aggregate Products
  • Portland Cement Stuccos
  • Concrete Masonry Units
Natural substrate color and surface textures are unaffected, with little or no gloss created. Slight darkening may occur on some adobe, limestone, or very dense surfaces. Test surface to be treated to ensure desired results. Surfaces treated with ChimneySaver WB may be painted with many oil based paints. Test to ensure adhesion and compatibility.
BENEFITS:
  • 10 Year Warranty
  • Non-Glossy
  • 100% Water Vapor Permeable
  • Efflorescence Protection
  • Protection from Acid Rain and Waterborne Chemicals
  • Mildew and Fungus Resistant
  • Freeze-Thaw Protection
  • Stain Protection
LIMITATIONS:
Surface and air temperatures should be a minimum of 40 degrees F. and a maximum of 110 degrees F. for two hours following application. This product is not suitable for use on asphalt surfaces. Do not apply to frozen or frost covered surfaces. Application must be to clean, sound, and relatively dry surfaces (can be applied to slightly damp surfaces). Do not apply to wet or water saturated surfaces and/or when rainfall is expected within six hours unless adequate protection with a polyethylene film, or its equivalent, is provided. Do not apply to painted or glazed brick or tiles. This product is not intended for below grade use.
Keep Product From Freezing
DIRECTIONS FOR USE:
Surface Conditions: Surfaces to which ChimneySaver WB is applied must be free from dirt, dust, stains, efflorescence, coatings or other foreign materials which might interfere with penetration of water repellent. Repair loose or missing mortar joints and allow to dry before application of water repellent. Repair and/or replace damaged masonry units. Allow new masonry and concrete to cure at least 28 days before applying water repellent.
APPLICATION:
Vertical: Agitate well before using. Test small area of surface before starting general application to assure desired results and coverage rates. Apply from bottom up using a low pressure sprayer (10-25 psi) with a fan type nozzle, or by roller with a minimum 3/8" nap. Flood surface until excess runs down 6 to 8 inches below spray or roller pattern. For maximum penetration and desired coverage rates, a wet on wet application is recommended; retreat within minutes after initial application. A wet treated surface may be agitated with a soft bristle scrub brush to ensure more even distribution and greater penetration.

Protect all adjacent glossy surfaces, paint films, windows, plant life, asphalt-based materials and all other non-targeted surfaces from overspray and rundown. Immediately remove overspray from non-targeted areas with soap and water. Thoroughly rinse plant life to remove overspray.
Horizontal: Agitate well before using. To ensure proper coverage, measure surface before treating and apply product with low pressure spray or deep nap roller. Pretest to measure material penetration rates. Apply a flood coat using sufficient material so that the surface remains wet for a few minutes before final absorption occurs. If additional material is required to reach desired coverage rate, a wet on wet application can be used. Avoid puddling or ponding; brush or broom to spread material to more porous area. If applicable, block all drains and use absorptive coverings to contain runoff of excess material. To avoid unnecessary clean-up, use soap and water to remove overspray as soon as possible.
Caution: Over-application of material may cause darkening of surface.
COVERAGE RATES
Approx. Coverage Sq. Ft. per Gal.
Brick Wall (porous)
90 - 110
Brick Wall (dense)
100 - 150
Concrete Block
40 - 80
Concrete (porous)
75 - 125
Broom Finish
100 - 125
Slick Trowel Finish
125 - 200
Stucco
60 - 100
Adobe
90 - 110
Limestone
80 - 120
Sandstone
80 - 120
Granite Polished
500 - 700
Most other cementitious products
100 - 150
DRYING TIME: To touch, or 2-6 hours depending on temperature and humidity.
CLEAN UP: Thoroughly rinse spray equipment with clean water. Wash rollers with soap and water. Rinse thoroughly.
HEALTH AND SAFETY
ChimneySaver WB is water-based and does not contain combustible or flammable, volatile organic solvents. Eye and skin irritation are greatly reduced. Overspray on non-targeted areas can be easily removed with soap and water.

Respiratory protection is not generally required during normal use and handling. The need for respiratory protection should be evaluated if material is sprayed in heated or poorly ventilated areas. The use of protective gloves and chemical splash goggles is recommended. For additional information, consult the Material Safety Data Sheet for this product.

Caution: Accumulation of product on ladders, scaffolding, roofs etc. may result in a slippery surface. Prevent overspray from accumulating. Clean all surfaces as necessary.
LIMITED WARRANTY:
SaverSystems heavy duty water repellent for masonry chimneys when applied according to label instructions at the minimum application requirements, on a properly prepared surface, will exhibit a water repellent effect for ten years from the date of application.

This warranty does not cover spalling, abrading, faulty construction and/or other defects which might erode treated surfaces. If water repellent fails to perform as specified above, SaverSystems will furnish, without charge, enough water repellent to correct the condition as the sole remedy.

This warranty does not include labor, or the cost of labor for the reapplication of water repellent. SaverSystems shall not be liable for direct, incidental, or consequential damages.
AVAILABILITY AND COST:
ChimneySaver WB is available from distributors throughout North America. "In place" cost of ChimneySaver WB will vary with project conditions and regional considerations. Specific job costs may be obtained from any SaverSystems distributor or dealer.
PHYSICAL PROPERTIES
Color
Milky white
Solvent
Water
Specific gravity, at 25 degrees C
1.00
Density
8.34 #/gallons
Flash point
None
Penetration
1/16" - 1/4" (depending on substrate)
VOC content (EPA Method 24)
50.6 gr./lt. (.422 #/gallons)
Shelf life
18 - 24 months in original sealed container
Yellowing
None
Surface appearance after application
Unchanged
 
TECHNICAL DATA
TEST DESCRIPTION RESULTS
ASTM C 67-91 Section 7 % Reduction in absorption on brick during immersion in water for 24 hrs.
96.9%
ASTM C 140-91 Section 6 % Reduction in absorption on 3000 psi concrete during immersion in water for 24 hrs.
91.29%
ASTM C 97-90 % Reduction in absorption on Indiana limestone during immersion in water for 48 hrs.
81.7%
Federal Specification SS-W-110-C-3.5 Treated mortar cubes shall have less than 1% absorption after immersion in water for 72 hrs.
.59% average absorption (exceeds min. criteria by 41%)
OHD-L-35 Water vapor transmission
100%
ASTM C 67-91 Section 10 Resistance to efflorescence
Excellent, no efflorescence on treated specimens
ASTM G 53-88 Accelerated weathering (QUV) 3000 hrs.
No loss in water repellency
ASTM E 514-86 % Reduction of leakage through masonry walls, University of Wyoming
99.9%
TECHNICAL SERVICES:
For more information or technical assistance: e-mail: info@saversystems.com or call SaverSystems' technical service representatives at 800-860-6327.
Copyright 2001 SaverSystems, a division of Meredith, Inc.