Progressive Lamella Drive-In Packer

Product Description

The Progressive Lamella Drive-In Packer is a slim, plastic drive-in injection packer with two key engineering features:

1. Progressive lamella geometry — the barbs on the packer body grow in size from front to rear. The leading barbs are small enough to slip easily into the drill hole, while the larger trailing barbs deform tightly against the borehole wall to provide the final pressure-tight grip. This means easy insertion and a strong final seal — usually a trade-off in drive-in packers.

2. Screwed-in steel M6 cone nipple — the injection connection is a separate steel component, threaded into the front of the plastic body. This combines the corrosion resistance of plastic with the mechanical strength of steel exactly where the injection gun applies force.

The packer is available in two diameter variants, both 75 mm long:

• Slim variant (10 mm diameter) — for fine cracks, narrow mortar joints, and tight spaces near edges of elements where a 14 mm drill hole would split the substrate.
• Wider variant (12 mm diameter) — for higher injection flow rates and lower-viscosity resins where the 4 mm internal passage of the slim version would be a flow restriction.

In both cases, the drill hole must be exactly the packer diameter — there is no oversize tolerance, because the progressive lamella design relies on a tight fit to function.

Characteristics and Advantages

• Progressive lamella geometry — small leading barbs make insertion easy; larger trailing barbs lock the packer firmly into the borehole. The combination delivers both fast installation and a strong final grip.
• Two diameter variants — pick the slim 10 mm version for fine cracks and tight spaces, or the wider 12 mm version when you need higher flow rates.
• Steel M6 cone nipple — universal European-market injection connection. Works with every M6-threaded injection gun and check valve in the standard.
• Plastic body, steel nipple — corrosion-resistant where it matters (the body, embedded in the substrate) and mechanically strong where it matters (the injection coupling).
• Slim profile — at 10 mm diameter, this is one of the narrowest mechanical injection packers available, ideal for restoration work and fine-crack repair.
• Drive-in installation — single-step installation with a hammer and impact aid. No spanner, no torque setting, no curing time.

Application Instructions

1. Choose the variant for the job: 10 mm for fine cracks (under 1 mm) and tight spaces; 12 mm for wider cracks (1–3 mm) and higher injection flow rates.

2. Mark the injection points along the crack at 100–200 mm spacing.

3. Drill the holes using a drill bit of exactly the packer diameter (10 mm or 12 mm SDS). Holes oversize by even 0.5 mm will compromise the lamella seal. Drill to a depth of at least 65 mm so the full lamella length sits inside the substrate.

4. Blow or vacuum the drill holes clean — any remaining dust will reduce the grip of the lamellae.

5. Insert the packer by hand until the first lamella enters the hole.

6. Drive the packer home with an impact aid (a soft-faced punch that protects the M6 nipple from hammer damage) and a hammer. The progressive barb design will require slightly more force as you go in — this is the larger trailing barbs engaging — but the packer should sit flush with the substrate at the end of the stroke.

7. Connect the injection gun to the M6 cone nipple.

8. Inject the resin until you see return from the adjacent packer along the crack. Close the adjacent packer’s check valve and continue along the crack.

9. Allow the resin to cure as specified by the resin manufacturer.

10. Cut the packer flush with a knife or grinder. Patch the empty drill hole with mortar or surface filler for an invisible finish.

Applications

• Fine-crack repair (slim variant) — Cracks below 1 mm in concrete and masonry where a 14 mm drill hole would be excessive
• Restoration of historical buildings — Slim 10 mm drill holes are far less invasive in heritage stone and brickwork than standard 14 mm drilling
• Edge-of-element crack repair — Where the drill hole must be placed close to the edge of a slab or beam, the smaller diameter reduces splitting risk
• Higher-flow injection (wider variant) — Low-viscosity polyurethane resins benefit from the wider internal passage of the 12 mm version
• Narrow mortar joints — In brickwork DPC and bed-course injection where 14 mm drilling would damage adjacent bricks
• Mixed-substrate cracks — Cracks that run between concrete and masonry, where matching drill diameters and packer sizes simplifies the job