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. 381


Provides an easily workable, non-ferrous, non-gaseous, non-shrink grout application where the use of forms is impractical.

SEALTIGHT PAC-IT Packable Grout is a non-ferrous, non-gaseous, non-shrink grout formula specifically developed for its excellent workability and application, where forms are not required.

Technical Description
SEALTIGHT PAC-IT Packable Grout is a non-ferrous, non-gaseous, non-shrink grout specifically formulated for grouting where the use of forms to contain the grout is impractical (such as in vertical or overhead applications). PAC-IT is a premixed, low-slump, non-gaseous grout offering high density and strength. PAC-IT offers excellent workability and high one-day strengths in addition to the non-shrink property.

PAC-IT is ideal for grouting column bases, precast walls, panels, beams, pretensioned or post-tensioned prestressed member applications.

Advantages and Benefits

bulletFurnished premixed...ready-to-use...just add water
bulletOffers high density and high one-day strengths with non-shrink characteristics
bulletMixes quickly and easily to desired consistency right on the jobsite
bulletFeatures excellent workability
bulletRequires no separate bonding agent...bonding agent is an integral part of the bag's content
bulletForms are not required
bulletSaves time and money

Typical Properties


7-1/2 pints (3.55 liters) of water per
bag of PAC-IT Grout
25%, 5 drops of the Flow Table within 2 minutes.
*Setting Time:
(ASTM C 191)
*Compressive Strength:
(ASTM C 109)

(ASTM C 157)
Initial Set
Final Set
24 Hours
3 Days
7 Days
28 Days
28 Days @ 90% RH
Water Immersed
1 hour 20 minutes
2 hours 15 minutes
4,291 psi (29.61 MPa)
7,950 psi (54.86 MPa)
9,370 psi (64.65 MPa)
11,138 psi (76.85 MPa)
* Set time and strength development is dependant on temperature, therefore, follow ACI Methods during hot or cold weather grouting.
ACI 305R-91 "Standard on Hot-Weather Concreting
ACI 306R-88 "Standard on COld Weather Concreting"

Application Tools


Concrete Mixing Pan

Mortar Mixer

Pointed Trowel

Hammer and 2"x 4" (for rodding)

All grouting should be done using established concreting procedures according to American Concrete Institute reccommendations: ACI 351.1R-93 "Grouting for Support of Equipment and Machinery."

SURFACE PREPARATION: All grout surfaces must be clean, dry and completely free of laitance, oil, grease, other coatings and any other contamination. Unsound concrete must be chipped out, leaving surface level, but rough. Grout area should be saturated surface dry (SSD) prior to grouting. Remove excess water before grouting.

MIXING: Small quantities of PAC-IT Grout may be hand mixed in a concrete mixing pan until lump-free. For large quantities, mix using a mortar mixer with rubber-tipped blades for a minimum of 3 minutes. Use minimum water required to produce desired placement consistency.
  Appropriate requirements per bag: 
  7 pts. (3.3 liters) for stiff consistency 
8 pints (3.79 liters) for plastic consistency  

Mix in 2 steps...add 2/3 of water requirement...add grout...after partial mixing, add remainder of water for desired consistency. Thoroughly mix total quantity for 3 to 5 minutes.
Do not mix more than can be placed in 30 minutes.

PLACEMENT: PAC-IT can be placed by packing or rodding.

CURING: If utilized, forms may be removed after grout has hardened to final set. Prevent rapid loss of water by covering with wet burlap during first 48 hours or apply appropriate SEALTIGHT Curing, or Curing and Sealing Compound. (We suggest SEALTIGHT 1640-WHITE or CS-309-1315.

Each bag of PAC-IT yields 0.43 cubic feet (0.012 cubic meters) of in-place grout using the water ratio level shown above. Note: For grouting application requiring a more flowable material, use SEALTIGHT 588 Non-Ferrous, Non-Shrink Grout.
Cost reductions can be realized when grouting large areas by the addition of washed, dried and graded pea gravel. For thickness over 2"...add up to 25%, 3/8" pea gravel.

50 lb. (22.68 kg) moisture-resistant bags
Store indoors off the ground. Keep dry for a shelf life of 12 months.
If material is hard or contains lumps, discard in appropriate manner.

Refer to Material Safety Data Sheet for complete Health and Safety Information.

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