O'Brill Company

Construction Specialty Suppliers

       6626 N. Milwaukee Ave.

Niles, IL 60714

773-775-1122 or 847-647-0005

FAX 847-647-7819

Since 1967

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NO. 377


Reduces spalling and scaling caused by deicing salts, water and other destructive materials.

SEALTIGHT LIN-SEAL Penetrating Concrete Sealer is a liquid formulation of boiled linseed oil in mineral spirits developed to protect and prolong the life of concrete surfaces against over exposure to deicing salt, water and other destructive materials.

Technical Description
SEALTIGHT LIN-SEAL Penetrating Concrete Sealer is a specification-grade formulation of boiled linseed oil in mineral spirits. LIN-SEAL is specifically compounded to prevent the spalling and scaling of concrete. This type of penetrating concrete sealer is recommended by many State Departments of Transportation for prolonging the life cycle of concrete exposed to water, salts and other destructive materials.

Meets maximum VOC content of 400 g/L for Concrete Protective Coatings as required by U.S. EPA Architectural Coatings Rule.

SEALTIGHT LIN-SEAL Penetrating Concrete Sealer is ideal for application on Portland Cement Concrete bridge decks, parking garage decks and ramps, or any concrete surface which allows the concrete to absorb water, salts or other destructive materials. LIN-SEAL may also be applied on wood to seal, protect and extend the life of the protected wood.

Advantages and Benefits

bulletProtects concrete surfaces against overexposure to deicing salt, water and other destructive materials
bulletIncreases the durability of the concrete to prolong its work life
bulletReduces spalling and scaling of concrete surfaces
bulletTreated surfaces are ready for use 4 hours after application
bulletReady-to-use...no mixing required
bulletSeals, protects and extends the life of wood
bulletEasy-to-apply...cleans up quickly with mineral spirits
bulletVOC compliant...meets the U.S. EPA Architectural Coatings Rule requirements

Related Products
LIN-SEAL WHITE: A true water-base, pigmented curing and anti-spalling compound.

LIN-SEAL EMULSION: A true water-base, clear curing and sealing compound.

Application Tools

Manual Sprayer

Power Sprayer


SURFACE PREPARATION: Surfaces to be sealed must be clean and dry. Remove all dirt, oil, grease, curing compounds and other substances that would prevent the proper penetration of the sealer.

APPLICATION: Apply at temperatures between 40F (4C) and 95F (35C). New concrete should be cured a minimum of 28 days before application. Apply with a hand or power sprayer. Puddles or excess liquid should be broomed off. Annual reapplication may be considered.

COVERAGE: Apply at the rate of approximately 300 ft/gal. (7.36m/L). A second application at approximately 600 ft/gal. (14.73m/L) is recommended for increased benefits and spall prevention.

CLEAN-UP: Use mineral spirits or other suitable petroleum distillate solvents to clean tools and equipment. Materials soaked with linseed oil (rags, absorbents, etc.) may spontaneously catch fire if improperly discarded. Immediately after use, all materials coming in contact with this product should be placed in sealed, water-filled containers.

5 gallon (18.93 liter) Pails
55 gallon (208.20 liter) Drums

Most State Specifications for Anti-Spalling Compounds
Boiled Linseed Oil...ASTM D 260
Fed. Spec. TT-L-190D


HEALTH HAZARDS: Avoid direct contact with this material, as it may cause irritation of the skin and eyes. Product vapors may cause transient central nervous system depression. LIN-SEAL should not be utilized in locations where food items are present. Refer to Material Safety Data sheet for complete Health and Safety information.

LIN-SEAL is a combustible product (flash point 113F). Ignition sources should be removed prior to use.

Do not apply LIN-SEAL if the temperature of the concrete is below 40F (4C) and only after all surface water has disappeared. DO NOT DILUTE. Do not use on colored concrete. Do not use on densely troweled surfaces or on surfaces where darkening of the concrete is undesirable. Do not use on brick, exposed aggregate, stone, masonry, slate, etc., which are not uniform in porosity or have a non-porous surface. Concrete containing calcium chloride will remain dark longer when treated with LIN-SEAL. The specifier and user shall determine suitability of product for specific applications and assume all responsibility in connection therewith.

NOTE: Current use of increased amounts of fillers, extenders or additives in the concrete mix can result in a higher than normal porosity and some very porous hot-spots. To provide proper surface treatment, adjust coverage ratios to compensate for the resulting penetration. Do not over-apply.

This material last updated January, 2000.

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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Copyright 2002 O'Brill Company
Last modified: August 09, 2004