Plastic Hammer-In Packers 3/8" (1000) Loose Bulk Pack
USD $650.00 USD $420.00

A HUGE DISCOUNT on a TOP brand packer!


$420.00 USD

 ...per 1000 Packers with Long Zerks!

3/8" High Density Nylon Packer  
#1 Recommended (Drive-In) Injection Packer

This "Bulk Shipment" consists of 1000 packers  with an equal number of Long Zerks (grease fittings).

Description:     This packer is made from super tough nylon which is much better than some competitors "standard grade nylon" packer formulations. This significantly improves breakage resistance in cold weather and deformation in hot weather. The inexpensive hammer in plastic packer is used on 90% of Canadian polyurethane injection projects allowing for high pressure injection methods (up to 3000psi). This packer is quickly increasing in use in the USA. Use this inexpensive packer for polyurethane injection and epoxy injection in place of expensive mechanical packers. Includes the long zerk (18mm or 5/8"length) for solid connections to your existing injection equipment.

"This great injection packer is beginning to gain significant ground in the USA where manufacturers have been making loads of money by promoting the expensive mechanical packers. To be honest, our injection crew has never needed to use a mechanical packer after many years of injection projects!"

Packaging:     Loose Bulk

Tips:     The use of these packers has become the standard in the Canadian injection community because they can be installed quickly, are more affordable than metal packers, and can be used in virtually 90% of the applications that grouters are asked to inject. (Projects encountering poor grade concrete should switch our Metal Mechanical Packers to assure a safe injection.) It is recommended that the technician always use the packers in clean drill holes that have been flushed fully with water.
Hint #1: Keep packers warm prior to use. The zerk will be much easier to install into the packer. Strength will decrease up to 30% at minus 40 degrees C.
Hint #2: Apply a small amount of the polyurethane injection resin to the outer surface just prior to inserting the packer in the drill hole and hammering it in. The grout will set in a very short time providing an excellent seal. Packers can always be used without the "coat" method.
Hint #3:
When injecting tight cracks, we have found high success rates by drilling straight into the crack to a depth of 2/3 the thickness of the wall (always measure and tape your drill bit for depth). High pressures can be maintained with virtually no spalding blow-outs (as opposed to angle drilling) and excellent grout penetration. Space the packers every 2.5 - 3 inches and a depth of 5 inches for an 8 inch thick residential wall. Use a low viscosity resin or heat up your grout in a tub of hot water (Lowers viscosity significantly, i.e. 600 cps down to 200 cps) to assure 100% penetration.
Technically speaking, the straight in drilling technique increases the surface area of possible grout penetration into the crack, within the wall. When angle drilling, you can expect grout penetration to occur at the point the drill hole intersects the crack. The exposed injectable surface area is just slightly more than the diameter of the drill bit used. Let's say a 3/8" drill bit produces a 1 3/16" (d=3.14 x r) of penetration point per drill hole. However, the straight in method will create a 10 3/8" penetration point in a 5" deep hole. This is almost a 900% increase in usable penetration point. When it is possible to use this method with the correct grout selection, you can lower pressures and achieve superior results in a shorter time. The inexpensive plastic packer won't cost you much for the extra packers used up by this process.


Hint #4: Cut the packers off with a rounded chisel as required. Clean divots can be filled with non-shrink grout or epoxy gel and dressed with a grinder.

Where possible, always flood test your work to ensure the crack is completely sealed. Callbacks will hurt your reputation and your wallet.

History:     The Plastic Hammer-In 3/8" Packer is one in a family of very high quality injection packers that have been used extensively. Their designs have been based on extensive industry experience and exacting standards.
All our packers are made in Ontario, Canada by our highly skilled manufacturer and are available for internet sales at

Warranty:   All information and statements are intended for persons having the required skill and know-how and do not relieve the user from verifying the suitability of the information and statements given for a specific purpose prior to use. The information, and in particular, the recommendations relating to the application and end-use of our products, are given in good faith based on Johnson Group Online Inc. and/or its manufacturers and suppliers current knowledge and experience of the products when properly stored, handled and applied under normal conditions, within their shelf life, but accuracy and completeness of said information is not guaranteed and are not to be construed as a warranty either expressed or implied. In practise, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any recommendations, or from any other advice offered. Users should always refer to the most recent issue of the Technical Data Sheet and the MSDS for the product concerned, copies of which will be supplied on request or can be accessed in the internet under

Neither seller nor manufacturer shall be liable to buyer or any third person for any injury, loss or damage directly or indirectly resulting from use or inability to use this product. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery.

Johnson Group Online Inc. warrants its products to be manufactured free of defects and will replace or, at our option, refund the purchase price of any materials proven to be defective. Seller’s and manufacturer’s sole responsibility shall be to replace that portion of the product of this manufacturer which proves to be defective. This limited warranty is in lieu of any other guarantee, expressed or implied, including warranties of merchantability or fitness for a particular purpose.  In no event will Johnson Group Online Inc. or its manufacturers or suppliers be liable for incidental or consequential damages nor shall liability, if any, extend beyond the purchase price of the material.



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Johnson Group Online Inc.
761-D Bayview Drive, Barrie, Ontario, Canada L4N 9A5
Office (705) 728-3476, Fax (705)-728-3305