One Day Packer

Single-use steel injection packer with a built-in double non-return valve, allowing the packer to be removed and the hole closed off on the same day the resin is injected. Designed for pressure injection of wet and dry cracks and for horizontal sealing grouting.

Key Features

Built-in double non-return valve — resin cannot flow back out of the substrate
Removable on the same day as injection — no return visit needed to grind off cured packers
Steel body engineered for high-pressure PU and epoxy injection
Conical head nipple — universal compatibility with injection guns and pumps
Suitable for both wet and dry crack injection
Approved for grouting liquids in horizontal sealing (DPC) work
Leaves a clean, easily patched hole after removal

Technical Specifications

Material	Steel body with double non-return valve and adhesive rubber sleeve
Type	Same-Day Removable High-Pressure Injection Packer
Head Nipple	Conical head nipple
Valve System	Double (twin) non-return valve
Compatible Resins	Polyurethane (including water-reactive PU) and Epoxy injection resins
Length	115 mm
Diameter	13 mm
Recommended Drill Bit	14 mm SDS
Substrate Conditions	Wet or dry

Chat on WhatsApp

Product Description

The One Day Packer is a high-pressure steel injection packer engineered to be removed on the same day as the injection — eliminating the return visit normally required to grind off cured packer stubs.

What makes this possible is the double non-return valve built into the packer body. Standard injection packers can only be removed after the resin has fully cured, because pulling them out earlier would let unset resin flow back out of the hole. The One Day Packer’s twin valves close automatically the moment injection pressure drops, sealing the resin inside the structure while the packer is being withdrawn.

It is designed for pressure injection of wet and dry cracks in concrete, masonry, and brickwork, and is also approved for grouting liquids in horizontal sealing (DPC) work.

Why “One Day”?

The name describes the single biggest practical advantage of this packer over a conventional drill packer:

Step	Conventional Steel Packer	One Day Packer
Day 1 — Injection	Drill, set packer, inject, leave packers in place	Drill, set packer, inject
Day 1 — End of work	Site must be left with packer heads protruding	Packers removed; holes patched immediately
Day 2 (or later) — Return visit	Grind off every cured packer head, patch holes	Not required
Cost / labour	Two-day mobilisation, second-visit grinding cost	One day, single visit
Finish	Ground-off stubs still visible	Clean patched holes, no visible packer trace

For occupied buildings, retail premises, infrastructure that cannot be closed twice, or any repair where the visible finish matters, this turns a two-visit job into a single-visit one.

Characteristics and Advantages

Double non-return valve — primary innovation; the twin valves trap injected resin in the substrate the instant the gun is disconnected, so the packer can be pulled immediately
Same-day extraction — no second mobilisation, no second day of labour, no grinding required
Works in wet conditions — the non-return valve design also prevents back-flow of groundwater or seepage water during the injection itself, making this packer ideal for active leak sealing
Steel construction — full high-pressure rating, identical to a conventional steel mechanical packer
Conical head nipple — universal industry-standard fitting, compatible with every injection gun and pump
Clean finish — the empty drill hole left behind can be patched with mortar or epoxy filler for a virtually invisible repair

Application Instructions

Mark the injection points along the crack or DPC bed course at the spacing specified by the resin manufacturer.
Drill 14 mm holes at the correct angle and depth for the application. Vacuum or blow out the drill dust.
Insert the packer into the hole.
Tighten the packer body with a spanner — the adhesive rubber sleeve expands and seals the packer in place. The double non-return valves are now armed.
Connect the injection gun or pump to the conical head nipple.
Inject the resin under pressure until the section is fully saturated (resin returning from the next packer along the line, or until the specified volume has been delivered).
Disconnect the gun. The instant pressure drops, the twin non-return valves close, locking the resin inside the substrate.
Loosen and withdraw the packer immediately. No waiting for the resin to cure.
Patch the empty drill hole with mortar, epoxy filler, or matching surface compound for a clean, invisible finish.
Move to the next packer and repeat. A full crack line can be completed and finished in a single working day.

Applications

Active leak sealing in basements, tunnels, sumps, and underground structures — the non-return valve performance under wet conditions is the key differentiator
Crack injection on occupied premises where a return visit for grinding is not practical
Horizontal damp-proof course (DPC) grouting — inject hydrophobic creams or silicone resins into a horizontal bed course in one continuous pass
Heritage and visible-finish work where ground-off packer stubs would be aesthetically unacceptable
Time-critical repairs — bridge decks, runways, retail floors, and other infrastructure that must be returned to service immediately
Wet and dry crack injection — the same packer covers both conditions, simplifying site logistics