TEX•COTE^¨ RAINSTOPPER^¨ 1750W STAIN
(Organosiloxane Stain)

I. PRODUCT DESCRIPTION

RAINSTOPPER^¨ 1750W Stain is a microemulsifiable concentrate based on pigmented organosiloxane. When mixed with water, a microemulsion is produced. This diluted form will impart water repellent stain to the absorbent mineral surfaces.

Important features of RAINSTOPPER^¨ 1750W STAIN:

• A stain concentrate that is low solvent and water free
• A viscosity comparable to stains
• Immediate miscibility with tap water without extensive mixing.
• V.O.C. compliant (less than 400 gms per liter minus water: ASTM D5090)
• When diluted with water the organosiloxane component complies with Series 11 NCHRP 244 Report at 32.0% by weight and meets SSW-IIOC Federal Specification at 9% by weight.

II. INSTALLATION

The RAINSTOPPER^¨ 1750W Stain may be roller or spray applied. A low pressure spray unit (20-25 pounds per square inch) or Hudson sprayer. Achieve a flooding condition with slight rundown, back roll and fog coat wet on wet system of application. Before application, be sure the surface is clean and free of environmental dirt, efflorescence, form oils, curing compounds or any other foreign matter that can affect the penetration of RAINSTOPPER^¨ 1750W Stain. A light sandblast may be required on dense, cured concrete for proper penetration. Surface to be treated should be uniformly wet or dry.

III. CLEANING METHOD

Clean up wet overspray on glass, metal or painted surfaces immediately with water, otherwise, RAINSTOPPER^¨ 1750W Stain adheres tightly to surfaces when cured. Spray or roll equipment while wet must be cleaned up with water immediately.

IV. TECHNICAL DATA

PRODUCT CHARACTERISTICS

• Appearance: Liquid Stain concentrate
• Organosiloxane Content percent:
  Typical (46 to 49 depending on color)
• Total Solids = 83 to 89 depending on color
• Flash Point: 77 degree F - Typical
• Weight Per Gallon U.S.: 13.01 lbs. Typical

NCHRP 244 SERIES II
The organosiloxane at 17.5% in water

TEST                   MINIMUM              RS1750W*
% Reduction in
water absorption          75                  80.0

% Reduction in
chloride ion
intrusion                 75                  78

% Water vapor
transmission             100.0               100.0

Test results are based on an application rate of 125 sf/gallon.

To achieve a 17.5% organosiloxane in water, the RAINSTOPPER^¨ 1750W Stain should be diluted with 1 part by volume by 3 1/4 parts by volume tap water.

NOTE: Various degrees of water repellency can be achieved using dilutions of 1 to 7 up to 1 to 15 with water by volume.

V. LIMITATIONS

• Masonry should be cured a minimum of 28 days before application.
• Rain or snow is not imminent.
• Surface should be free of foreign matter and not frozen.
• When mixed with water, the blend should be used within 24 hours. Longer storage time with the water blend can affect penetration properties.
• Keep containers sealed to eliminate moisture intrusion.
• RAINSTOPPER^¨ 1750W Stain is for above grade only.
• Environmental temperatures should be between 45¡F and 100¡F.
• Do not store near excessive heat or flame. (Flash Point = 77¡F)
• During application use splash goggles, rubber gloves, protective apron and vapor respirator to conform with the following HMIS values: Health = 3 Flammability Hazard = 3 Reactivity Hazard = 1 Personal Protection = H

VI. AVAILABILITY AND COST

RAINSTOPPER^¨ 1750W Stain is available from Textured Coatings of America, Inc. facilities or representatives in most cities throughout the United States or by calling "Sweets Buy Line". Cost will vary from region to region. Contact your local representative.

VII. WARRANTY

Limited warranties are available. Notification or request for a warranty must be prior to application of the product. Specimen copies and details of warranties are available upon request.

VIII. MAINTENANCE

No particular maintenance required.

IX. TECHNICAL SERVICES

Analysis of particular project requirements and recommendations for the proper use of RAINSTOPPER^¨ 1750W Stain are available upon request.

X. FILING SYSTEMS

Sweets Architectural Filing System and or Spec-Data II Files. For additional literature, request from TCA, Inc. Protective Systems for New Prestressed and Substructure Concrete, U.S. Department of Transportation, April, 1987 (FHWA/RD-86/193).

Concrete Sealers for Protection of Bridge Structures, National Cooperative Highway Research Program Report 244, December 1981 (NCHRP No. 244).

THESE PUBLICATIONS AND ADDITIONAL PRODUCT INFORMATION ARE AVAILABLE UPON REQUEST.

RS-1750-S-1297