In-Hole Accessories

SLUMPSTOPPA™

Maintains emulsion integrity in underground mining operations
· SKU 01-008

SLUMPSTOPPA™ is a bottle brush–style uphole retention device used in emulsion blasting to control slumping during loading.

In underground operations, emulsion can slump back in upholes while charging. That wastes product, creates mess, and makes collar height inconsistent. SLUMPSTOPPA™ is inserted into the blasthole during loading to help retain the emulsion column where it belongs.

On site, many blasters call it a bottle brush. And visually, it looks similar. But its job isn't cleaning. It's charge control.

The polymer bristles fold back during insertion, allowing the device to be pushed several meters into the hole. Once in place, the bristles help hold the emulsion in position while still allowing gassing to occur. This helps maintain correct collar height and improves loading consistency.

SLUMPSTOPPA™ is commonly used in underground emulsion blasting where clean loading, reduced waste, and better housekeeping matter. It's resistant to emulsion chemicals and designed around global best practice for explosive loading.

Used for:

  • Emulsion blasting in underground mining
  • Uphole charge retention
  • Controlling emulsion slumping during loading
  • Improving collar height consistency
  • Reducing wasted emulsion and cleanup

Key features:

  • Bottle brush–style bristle design
  • Flexible polymer bristles with stainless steel spine
  • Allows emulsion gassing while retaining charge
  • Resistant to emulsion chemicals
  • Designed to reconcile with AS 2187.2 best practice

If emulsion slumping is an issue during loading, SLUMPSTOPPA™ provides a simple, proven way to keep the charge where it needs to be.

Size · 2.5" - 3"
Size guide
Not sure which size? Use the size guide →
Ships same-day from Stanton, KY
Same-day shipping Stocked in Stanton, KY
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SLUMPSTOPPA™
SLUMPSTOPPA™
2.5" - 3"
Get trade pricing
STOP THE SLUMP. LOAD THE UPHOLE.
Uphole emulsion retention
Why this product

Why SLUMPSTOPPA™

Stops emulsion slumping

Bristle design holds emulsion in place inside upholes. No slump, no product loss.

Why it matters: The explosive charge stays where you loaded it. Your designed deck lengths hold.

Polymer and steel build

Steel wire bristles bonded to a polymer core. Tough enough for repeated use.

Why it matters: Lasts through hundreds of insertions without degrading. A tool, not a consumable.

Flexible insertion

Bristles compress on insertion and expand to grip the hole wall.

Why it matters: Slides in easy, locks in tight. Works in both smooth and rough hole conditions.

Gas-permeable bristles

Open bristle structure allows detonation gases to pass through during the blast.

Why it matters: Doesn't create a pressure point that disrupts your fragmentation pattern.

Improves loading cleanliness

Acts as a wiper during insertion, cleaning the hole wall for better product contact.

Why it matters: Emulsion adheres to clean rock instead of sliding off a wet, dirty surface.

Saves on explosives

Prevents emulsion waste from slumping out of upholes before detonation.

Why it matters: The product you load stays in the hole. Less waste, lower cost per meter of advance.

Benefits

Built for the bench.

Stop the slump

Holds emulsion in upholes so you load once and walk away — not twice.

Bottle-brush retention

Fine bristles grip the hole wall and lock the column in place against gravity.

Single-pass charging

Crews stop re-loading slumped charges. Stick time on the bench drops.

Built for every condition

Built for every condition.

Underground upholes

Tunnel and drive rounds with upward-angled holes. Gravity works against you; the SLUMPSTOPPA™ works with you.

Wet upholes

Combined with a liner, holds the column in the worst of the wet-ground workings.

Product details

Specs, storage & more.

Size chart
01-008 2.5" - 3" / 64 - 76mm — 48/box
01-009 3" - 4" / 76 - 102mm — 48/box
01-010 4" - 6.5" / 102 - 165mm — 48/box
General specifications
globally and reconciles with AS 2187.2 2008 Explosives -
Length 28"
Width 19"
Height 17"
Weight 15lbs
Compliance
Non-sparking Yes
Packaging
Pack size 48/box
At the collar of the uphole. It catches and retains the emulsion column above it.
The MITIPLUG™ is a hard plastic plug. The SLUMPSTOPPA™ is a bristle-based brush plug — better in some hole geometries, particularly where the wall is irregular.
Detailed comparison
Side-by-side

Pick the right one.
Every time.

Detailed Comparison

BLASTBAG SOLO self-inflating blast hole plug with dual aerosol cartridgesBLASTBAG™ SOLO BLASTBAG™ EVO - BLASTBAGS™ - MTi USABLASTBAG™ EVO BLASTBAG™ ACE II - BLASTBAGS™ - MTi USABLASTBAG™ ACE II BLASTBAG™ AERO - BLASTBAGS™ - MTi USABLASTBAG™ AERO BLASTBALL™ - Stemming Plugs - MTi USABLASTBALL™ MITIPLUG - Stemming Plugs - MTi USAMITIPLUG ROCKRIVETS - Stemming Plugs - MTi USAROCKRIVETS SLUMPSTOPPA™ - In-Hole Accessories - MTi USASLUMPSTOPPA™
TypeInflatable bagInflatable bagInflatable bagInflatable bagInflatable plugMechanical plugRetention plugRetention device
Inflation / MechanismAerosol, 2-speed actuator (non-flammable, non-toxic)Aerosol, variable pressure sleeveChemical reaction (non-DG, no metal)Compressed air (service air lines)Compressed air via drop line, hermetic bladder + nylon webbingFlexible pilgrim-hat fins (no inflation)Collet-fin friction (rigid or semi-rigid)Polymer bristles + stainless spine (gas-permeable)
Hole Size Range4.5" – 12.25" / 114 – 311 mm4" – 9⅞" / 100 – 250 mm3" – 10⅝" / 76 – 270 mm2.5" – 12.25" / 64 – 311 mm2.5" – 8" / 64 – 203 mm2.5" – 4" / 64 – 102 mm3" – 9" / 76 – 230 mm2.5" – 4.5" / 64 – 115 mm
Surface / UGBothSurfaceBothUG specialist - bothBoth, wet-hole ratedUGBothUG
DG ClassClass 9Class 9Non-DGNon-DGNon-DGNon-DGNon-DGNon-DG
Best For Air DeckingThe most-used aerosol bag worldwide — single-operator, ~30 seconds per holeTwo SKUs cover most hole sizes — simpler stocking, fewer decisionsSites with strict storage rules or metal-detector conveyorsUnderground sites running service air — snap-on couplingWet holes, breakthroughs, cracks/voids — the only wet-hole-rated inflatableUnderground emulsion or ANFO upholes — column retention + air deck in oneRetains the charge column and creates a controlled air deck on trim and pre-split rowsEmulsion uphole loading — holds the column while letting gas through

Swipe to see all columns →

When to pick each
BLASTBAG™ SOLO

Pick BLASTBAG™ SOLO when you're running surface benches and want the most-used aerosol gas bag on the market. Self-contained, single-operator deploy, no extra gear — ~30 seconds per hole. Two-speed actuator lets you inflate slow or fast depending on the situation. Sizes from 4.5" to 12.25" (114 – 311 mm) cover every standard production hole. Class 9 DG — stores and ships under aerosol rules.

BLASTBAG™ EVO

Pick BLASTBAG™ EVO when you want aerosol convenience without the SKU sprawl. Two sizes — Hawk (4" – 6") and Eagle (6" – 9⅞") — cover most surface holes, so you stock less and make one decision on the bench instead of four. Single bladder seals against the hole wall; pressure sleeve controls inflation speed. Class 9 DG.

BLASTBAG™ ACE II

Pick BLASTBAG™ ACE II when storage or transport rules make aerosol products a hassle, or when you're running metal-detector conveyors that throw false trips. Chemical reaction inflation — no aerosol, no metal components, non-DG. Same air-deck performance as SOLO and EVO, just delivered through a controlled chemical reaction instead of pressurized gas. Sizes 3" through 10⅝" (76 – 270 mm).

BLASTBAG™ AERO

Pick BLASTBAG™ AERO when you're underground with service air lines available. Compressed-air operated, dual-bladder construction, snap-on coupling for fast connect/disconnect. Works in any direction — up holes, down holes, even underwater. Sizes 2.5" through 12.25" (64 – 311 mm). Best-seller in underground and the cleanest install when air is already on site. Non-DG.

BLASTBALL™

Pick BLASTBALL™ when the hole is wet or you've got breakthroughs and cracks to seal. 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). Sizes 2.5" to 8" (64 – 203 mm). Underground development specialist.

MITIPLUG

Pick MITIPLUG™ when you're loading emulsion or ANFO into underground upholes and need a mechanical plug that creates an air deck AND retains the column. Flexible pilgrim-hat fins fold back on insertion, then lock in place — and the fins let gas through. Revised design includes downline protection. Fits 2.5" to 4" (64 – 102 mm). The most popular plug for underground emulsion upholes.

ROCKRIVETS

Pick ROCKRIVET™ when you need to create a controlled air deck on a trim or pre-split row, or hold the charge column with maximum retention and downline pass-through. Collet-style fins bite the hole wall and don't walk, twist, or shift. Iron ore case study: 38% smaller P80 fragment size with ROCKRIVETS installed. Sizes 3" to 9" (76 – 230 mm), rigid for heavier loads, semi-rigid for tighter holes.

SLUMPSTOPPA™

Pick SLUMPSTOPPA™ when you're loading emulsion in underground upholes and need a gas-permeable retention device to hold the column without compromising the gassing reaction. Polymer bristles with a stainless steel spine hold the column while letting emulsion gas through. Fits 2.5" to 4.5" (64 – 115 mm). The dedicated emulsion-slump solution for underground upholes.

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