Steel Injection Packer with Flat Head Nipple

Product Description

The Steel Injection Packer with Flat Head Nipple is a high-pressure drill injection packer purpose-built for crack and surface injection in brickwork, masonry, and double-leaf walls. Its distinguishing features are the flat (pan) head nipple and the extended adhesive rubber sleeve, both of which set it apart from the more general-purpose conical-nipple steel packer.

The 16 mm flat head sits flush against the substrate — no protruding nipple that can be knocked off — and accepts standard quick-connect injection couplings used on horizontal damp-proof course (DPC) and rising-damp treatment kits.

Why a Flat Head Nipple?

In brickwork and masonry, drill holes are rarely perfectly cylindrical: mortar joints, voids, and broken brick faces all create irregular geometry. The flat pan-head design solves this in three ways:

• No leverage point — the flat profile transfers injection-pump force straight into the packer body, not into a sideways torque that could dislodge the seal.
• Flush installation — the head sits at substrate level, so the wall can be skimmed, plastered, or pointed over the injection points after curing without grinding off protrusions.
• Wider sealing surface — combined with the 30 mm extended rubber sleeve, the flat head distributes injection pressure over a larger area, which prevents the packer from blowing back out of soft or weathered masonry.

Characteristics and Advantages

• Extended 30 mm rubber sleeve — significantly more sealing length than a standard adhesive sleeve, essential for hollow bricks, soft mortar, and old masonry
• Steel construction — withstands the high pressures of two-component PU and epoxy injection pumps
• Flat 16 mm pan head — accepts standard quick-connect couplings used in DPC, rising-damp, and brickwork injection kits
• Universal resin compatibility — works equally well with PU foams, hydrophobic horizontal-barrier creams, and epoxy crack injection resins
• Low-profile finish — heads can be skimmed or plastered over after curing for an invisible repair

Application Instructions

1. Plan the injection pattern along the mortar joint or crack line. For horizontal DPC, place packers every 100–120 mm along a single horizontal bed course.

2. Drill 14 mm holes angled slightly downward into the mortar joint (or across the crack for crack injection). Depth should match the wall thickness, leaving 30–50 mm uncrossed on the far face.

3. Vacuum or blow out the drill holes to remove dust — critical for a tight rubber seal.

4. Insert the packer until the flat head is flush with the substrate surface.

5. Tighten the packer body with a spanner. The extended adhesive rubber sleeve expands and grips the drill hole along its full 30 mm contact length.

6. Connect the injection coupling to the flat head nipple. The flat head accepts standard quick-connect fittings — no special adapter required.

7. Inject the resin at the pressure specified on the resin technical data sheet. Monitor adjacent packers for resin return as confirmation that the wall section is fully saturated.

8. Close, disconnect, and move along the row until every packer has been injected.

9. Allow full cure as specified on the resin data sheet.

10. Finish the surface — the flat heads can be left in place and rendered or pointed over for an invisible final finish.

Applications

• Horizontal damp-proof course (DPC) injection — Insert a chemical barrier in a bed course to stop rising damp
• Crack and surface injection on brickwork — Restore monolithic strength to cracked masonry
• Double-leaf and cavity wall injection — Inject through the outer leaf without protruding into the cavity
• Restoration of historical buildings — Low-profile, flush-finish repair appropriate for heritage substrates
• Mortar joint sealing — Fill failed mortar joints with epoxy or polyurethane