In-Hole Accessories

Booster Lock

Prevents boosters from floating
· SKU 01-176

Booster Lock keeps boosters secure in wet boreholes, preventing flotation when water and pumpable explosives are present.

Ships same-day from Stanton, KY
Same-day shipping Stocked in Stanton, KY
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Booster Lock
Booster Lock
Default Title
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KEEP THE BOOSTER DOWN. EVEN IN WATER.
Wet-hole booster retention
Benefits

Built for the bench.

Holds the booster

Mechanical retention for boosters in wet boreholes — prevents floating, slipping, or misplacement.

Wet-hole proven

Designed specifically for the worst wet-hole scenarios where unanchored boosters drift.

Built for every condition

Built for every condition.

Wet boreholes

Water makes boosters float. The BOOSTER LOCK keeps them at depth.

Product details

Specs, storage & more.

General specifications
Length 21"
Width 17"
Height 11"
Weight 24lbs
Compliance
Non-flammable Yes
Non-sparking Yes
Packaging
Pack size 50/box
Detailed comparison
Side-by-side

Pick the right one.
Every time.

Detailed Comparison

SLUMPSTOPPA™ - In-Hole Accessories - MTi USASLUMPSTOPPA™ Shot Bags - In-Hole Accessories - MTi USAShot Bags BLASTBALL™ - Stemming Plugs - MTi USABLASTBALL™ Spiders - In-Hole Accessories - MTi USASpiders Booster Lock - In-Hole Accessories - MTi USABooster Lock
What It Does In the HoleHolds the emulsion column in upholes during loading while letting gas throughFillable polypropylene tube — ANFO, emulsion, or stemming material goes in on siteSeals against the hole wall to block a breakthrough, cap an uphole, or contain a cracked/wet holeCenters the booster in the explosive column so detonation propagates evenlyAnchors the booster against flotation when pumpable explosives or water are present
Hole Size Range2.5" – 4.5" / 64 – 115 mm3" – 8" diameter, 36" – 48" length (76 – 203 mm × 914 – 1,219 mm)2.5" – 8" / 64 – 203 mm2.5" – 4.5" / 64 – 115 mm5"+ / 127 mm+
MaterialPolymer bristles + stainless steel spinePolypropylene (poly bag)Reinforced rubber bladder + nylon webbingPlastic housingPolymer (potato-sack design)
Power / MechanismNone — bristles fold on insertion, grip the wallNone — filled on siteCompressed air via drop line, hermetic valveNone — friction legs fold on insertionNone — clips onto booster
Best ForUnderground emulsion upholesWet, cracked, or irregular open-pit holesWet holes, breakthroughs, cracks/voidsBooster centralization in production holesWet boreholes with pumpable explosives

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When to pick each
SLUMPSTOPPA™

Pick SLUMPSTOPPA™ when you're loading emulsion into underground upholes and the column won't stay where you put it. Polymer bristles with a stainless steel spine fold on insertion and grip the hole wall — holding the emulsion column in place while the bristles let the gas through normally. Three sizes: 2.5"–3", 3"–4", 4"–4.5" (64–115 mm). The dedicated emulsion-slump solution.

Shot Bags

Pick Shot Bags when the hole is wet, cracked, or won't hold a clean column on its own. Empty polypropylene tubes you fill on site with the material the hole needs — ANFO or emulsion to make a bagged charge that won't get diluted by water or lost into cracks, or stemming material (drill cuttings, sand, gravel) to add weight to the column. Eight sizes from 3" × 36" to 8" × 36" (76 – 203 mm × 914 mm). Some sites call them poly bags. Same idea.

BLASTBALL™

Pick BLASTBALL™ when you've got a wet hole, a breakthrough, or cracks and voids that need a reliable seal across an irregular bore. The only inflatable in this collection rated for wet-hole deployment — lower it through water on a drop line, then inflate with compressed air. Reinforced rubber bladder with nylon webbing handles -58°F to 185°F (-50°C to 85°C). Three sizes covering 2.5" to 8" (64 – 203 mm).

Spiders

Pick a MultiFit Spider when you need the booster centered in the explosive column for even detonation. The spider's flexible legs fold on insertion and extend automatically once it's in the hole, centering the booster and protecting the detonator wire. Two sizes — 150G fits 2.5" – 4.5" holes (64 – 115 mm) and supports lighter boosters; 250G fits the same range and supports heavier boosters. Quick "shotgun-style" load through a 25 ID / 32 OD ANFO hose.

Booster Lock

Pick the Booster Lock when you're running pumpable explosives or loading into wet boreholes and the booster wants to float. Clips onto the booster and locks it at the depth you set, so the primer stays where the shot design called for. Fits holes 5" (127 mm) and larger. Simple clip-on design — no inflation, no tools.

Field reviews

What shotfirers actually say.