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. 232-PD

SEALTIGHT® 3405

POLYMERIC COMPOUND

Technical Description
SEALTIGHT 3405 is a quality, hot-applied, single-component polymeric compound. SEALTIGHT 3405 was specifically formulated for the cost-effective sealing of cracks and joints in Portland Cement and asphaltic concrete highways. It offers excellent bonding properties, high resiliency and resistance to degradation from weathering. It is ideal for large, medium and small-scale sealing projects.

Specifications
ASTM D 3405
ASTM D 1190
AASHTO M 301
AASHTO M 173
Federal Specification SS-S-1401C
Federal Specification SS-S-164

Use and Application
SEALTIGHT 3405 should be melted in an oil-jacketed melter-applicator equipped with an agitator and separate temperature thermometers for oil bath and melting vat. Sealing may be done at air temperatures of 40ºF (4ºC) and higher. NOTE: Application of sealant into frozen or wet pavement will result in loss of bond and premature failure of the sealant.

NEW CONCRETE PAVEMENT SEALING: Typical joint configuration should be 3/8" (9.54mm) wide with a minimum 1/2" (12.7mm) depth for an approximate 1:1 width-to-depth ratio. Designated joint width and depth is determined by the appropriate highway or pavement authority. SEALTIGHT CERA-ROD Heat-Resistant Backer Rod may be installed in the joint opening to control depth and sealant usage.

ASPHALTIC PAVEMENT and MAINTENANCE SEALING: For ideal sealing, with maximum effectiveness, it is suggested that cracks or joints should be routed out to provide a sealant reservoir 1/2" (12.7mm) wide with a minimum depth of 1/2" (12.7mm). This provides for a 1:1 width-to-depth ratio. For joints 1" (25.4mm) wide, the suggested depth is 1/2" (12.7mm) minimum.

Proper routing should be slightly larger than existing crack/joint to ensure proper adhesion to sidewalls. The sealant should be applied into the crack/joint from the bottom up, slightly overfilling. Once applied, a follow-up should be done with a soft rubber, U-shaped squeege to form a wipe zone of approximately 3-4 inches (76.2-101.6mm) wide along the crack/joint and flush with the highway or pavement surface. To control and maintain the suggested joint depth and sealant usage, SEALTIGHT CERA-ROD Heat-Resistant Backer Rod may be installed in the joint opening.

Packaging
55 pound (24.95 kg) cartons containing two 27.5 pound (12.47 kg) blocks individually wrapped in poly bag liners.

Precautions
Service life at recommended temperatures is approximately 12-15 hours. Application life may be extended by adding fresh material as sealant is applied and the quantity in the kettle decreases. SEALTIGHT 3405 hot-pour joint sealant can be reheated once within the prescribed safe heating temperature limits. Repeated reheating may result in material degradation or gelling in the melter. When the application life has been exceeded, SEALTIGHT 3405 will thicken, become stringy and may gel. If this occurs, remove the sealant immediately from the kettle and discard.

This material last updated November, 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