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Div. 03050Meadows

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U.S. Spec.  Specification

NO. 368



SEALTIGHT VOCOMP-20 Water-Base Acrylic Curing and Sealing Compound is formulated of special acrylic copolymers in a true water-base carrier. It is a ready-to-use curing and sealing compound.

Once properly applied, VOCOMP-20 provides an impermeable seal for efficient moisture retention. Color-wise, VOCOMP-20 appears "milky white" in the container and, when first applied, it leaves a "bluish" cast on the concrete for easy, visual identification of coverage. VOCOMP-20 dries clear to provide a transparent sheen finish. If a greater sheen is desired, a coat of VOCOMP-25 or VOCOMP-30 may be applied. (Refer to Data Sheet Nos. 369 & 374). VOCOMP-20 resists yellowing due to ultraviolet degradation and provides a durable, long-lasting finish that offers improved resistance to chemicals, petroleum and abrasives.

VOCOMP-20 will minimize hair-checking, premature cracking, dusting and spalling. However, good concrete and good concreting practices should be used as VOCOMP-20 is not a cure-all for improperly mixed or placed concrete. VOCOMP-20 meets maximum VOC content limits of 350 g/L for Concrete Curing Compounds as required by the U.S. EPA Architectural Coatings Rule.

A potable water approved product (in accordance with Standard ANSI/NSF 61-1997B 69RL) is available upon request. A copy of this approval is also available upon request.

VOCOMP-20 Water-Base Acrylic Curing and Sealing Compound may be quickly and easily applied to simultaneously cure and/or seal new interior and exterior, vertical and horizontal concrete surfaces. It is ideal for application on commercial and industrial floors, sidewalks, basement and garage floors, multi-level parking decks, patios, driveways and parking areas. VOCOMP-20 dries very quickly to protect and enhance the natural appearance of concrete.


  • Ready-to-use, non-yellowing, water-base compound that cures and/or seals concrete in one quick and easy application
  • Minimizes hair-checking, premature cracking, dusting and spalling
  • Dries quickly on new concrete to a durable, clear, sheen finish that protects and enhances the natural appearance of concrete
  • Ideal for application on interior, exterior, horizontal and vertical concrete surfaces
  • Resists adhesion of mortar droppings to protect concrete floors during construction...permits easier cleanup
  • Tough, durable finish offers improved resistance to chemicals, petroleum and abrasives
  • Application tools may be cleaned with soap and water
  • VOC compliant...meets the U.S. EPA Architectural Coatings Rule requirements

1 gallon (3.79 liter) Containers
5 gallon (18.93 liter) Pails
55 gallon (208.20 liter) Drums

  • ASTM C 309, Type 1, Class B
  • AASHTO M 148, Type 1, Class B
  • USDA Accepted
  • UL potable water approved product (available upon request)
Complies with the ultraviolet light degradation - yellowing classification
of ASTM C 1315, Class A, Section 6.4.1.

Approximately 300 sq. ft./gal. (7.36 sq m/L).
Coverages may vary due to porosity and condition of the concrete.

Application Tools

Manual Sprayer

Surface Preparation
... New Concrete: Apply VOCOMP-20 when the surface water has disappeared and the concrete surface will not be marred by walking workmen.

Application Method... VOCOMP-20 is ready-to-use "as is" from the container. A typical, manual sprayer provides an easy, economical method of application. VOCOMP-20 should be sprayed on with an 8001 tip that produces a flow of 1/10th of a gallon per minute. Spray on in a fine, fog pattern without spurts and dribbles to form a thin continuous film. AVOID PUDDLING in low areas...if puddles occur, brush or roll them out.For added protection and a greater sheen on the concrete, a coat of VOCOMP-25-1315 may be applied after the first coat of VOCOMP-20 has dried.

Drying Time...VOCOMP 20 dries very quickly. Drying times may be extended, depencing on application rate, temperature, humidity and project conditions, Restrict foot traffic for at least 4 hours...12 hours is preferable.

Clean Up...While VOCOMP-20 is still wet, equipment may be easily cleaned with soap and water. Once dried, the material may be removed with a solvent such as Xylene or Toluene.

KEEP FROM FREEZING. Do not apply VOCOMP-20 when air, material and surface temperatures are expected to fall below 40ºF (4ºC) within 4 hours of completed application. VOCOMP-20 may be applied to colored concrete, but mottling may occur. Do not use on non-porous surfaces or surfaces which are not uniform in porosity, i.e. brick, stone, masonry, etc.

Concrete floors properly cured with VOCOMP-20 meet Section 8.9 "Adhesion of Tile Cements" of ASTM C 1315. For other specifications, secure the approval of the paint or resilient flooring manufacturer before applying VOCOMP-20. The specifier and user shall determine the suitability of the product for specific applications and assume all responsibilities in connection therewith.

Do not apply this product in locations where food items are present. Direct contact may cause mild to moderate irritation. Refer to Material Safety Data Sheet for complete Health and Safety Information.

This material last updated June, 2002.

Div. 03050Meadows

U.S. Spec.  Specification

W. R. MEADOWS, INC. warrants that, at the time and place we make shipment, our materials will be of good quality and will conform with our published specifications in force on the date of acceptance of the order. THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES OTHERWISE ARISING BY OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR OTHERWISE. As the exclusive remedy for breach of this Warranty, we will replace defective materials, provided, however, that the buyer examine the materials when received and promptly notify us in writing of any defect before the materials are used or incorporated into a structure. Three (3) months after W. R. MEADOWS, INC. has shipped the materials, all our Warranty and other duties with respect to the quality of the materials delivered shall conclusively be presumed to have been satisfied, all liability therefore terminates, and no action for breach of any such duties may thereafter be commenced. W. R. MEADOWS, INC. shall in no event be liable for consequential damages. Unless otherwise agreed to in writing, no warranty is made with respect to materials not manufactured by W. R. MEADOWS, INC. We cannot warranty or in any way guarantee any particular method of use or application of the performance of materials under any particular condition. Neither this Warranty nor our liability may be extended or amended by our salesmen, distributors or representatives, or by our distributor's representatives, or by any sales information or drawings.


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CMI provides international sales for North American based construction materials manufacturers in the worldwide markets. CMI, construction materials international, building material, ceilings, manufacturer, construction, residential, commercial, roofing insulation, metal building products, roofing system, insulation, siding, GAF, W. R. Meadows, DOW, Rock-Tenn Company, International Specialty Products, ISP, Concrete Chemicals, Joint Sealant, Joint Filler, Waterproofing, Concrete Repair and Restoration, Roofing Granules, laminated paperboard, steep slope, low slope, coatings, cements, thermax.