Grit-Free Surface Preparation Below the Waterline
Engineered for underwater environments, diving operations, and offshore maintenance, delivering controlled surface conditioning even in demanding subsea conditions.
Below the surface
When corrosion protection needs to extend below the surface of the sea, precision, safety, and reliability become even more critical.
“Grit-free preparation, controlled even below the waterline.”
Water pressure
Managing buoyancy and pressure effects at depth.
Limited visibility
Operating in murky or restricted subsea environments.
Environmental risk
Preventing contamination in sensitive marine ecosystems.
Operational constraints
Meeting strict diving campaign and ROV requirements.
Hydraulic power, underwater integrity
The Bristle Blaster® Subsea is a hydraulic underwater device with a unique water drive. Connected via a single, neutrally buoyant high-pressure hose, it creates a controlled, inspectable surface profile below the waterline, without grit or containment. Topside, the same principle runs on the Bristle Blaster® range.




Our subsea offering
Diving-compatible tools
Specialized surface preparation tools operated safely by commercial divers.
Caviblasting systems
Advanced water-based blasting that delivers controlled cleaning underwater.
Technical support
From pre-project planning to offshore execution, our specialists support the campaign.
Where it's used
Offshore platforms & jackets
Controlled, inspectable preparation on structural steel.
Subsea pipelines & spools
Grit-free conditioning for reliable coating adhesion.
Marine vessels
Underwater hull sections and structures.
Wind foundations
Offshore wind foundation maintenance.
FPSO structures
Floating production, storage and offloading structures.
IRM campaigns
Inspection, repair, and maintenance campaigns.
Prepared below
the waterline.

La confiance de projets dans le monde entier
The water-driven Bristle Blaster® enables hydraulic underwater surface preparation where conventional blasting cannot reach.
Surface preparation, underwater
The water-driven Bristle Blaster® prepares submerged steel where conventional blasting can't reach.




Spark-free surface prep for subsea and splash-zone hot-work zones.
The Bristle Blaster® Pneumatic Ultimate has undergone an independent Gexcon ignition-hazard analysis and ATEX 2014/34/EU conformity evaluation, so coating repair can continue in hazardous offshore areas without electric-tool hot-work permits.
Catégorie 2, zone 1 gaz & zone 21 poussières
Zone 1 gaz explosif, évalué pour le groupe de gaz IIA (essence, hexane, propane), EPL Gb.
Zone 21 poussière explosive, évalué pour le sous-groupe de poussière IIIC, EPL Db.
Entièrement pneumatique, entraînement à air comprimé, sans composants électriques, sans source d'inflammation électrique.
Évalué indépendamment par Gexcon selon la série harmonisée EN ISO 80079.
Bristle Blaster® Pneumatic Ultimate
L'essai de décharge en aigrette n'a enregistré aucune décharge mesurable, réussi pour les groupes de gaz IIA, IIB et IIC.
Huit chutes en conditions ambiantes et gelées, aucun dommage réduisant la sécurité d'inflammation de l'outil.
Utilisé dans des atmosphères explosives propane-air (groupe IIA) sans inflammation observée.
Les marquages indiqués reflètent le champ de l'évaluation de conformité ATEX indépendante. Confirmez le marquage certifié sur la plaque signalétique de l'outil et la déclaration de conformité pour votre configuration spécifique avant toute spécification.
IMCA, DNV & ISO aligned
MontiPower subsea tools are configured in accordance with offshore safety standards and industry diving protocols. IMCA-compliant, built to DNV offshore requirements, and compliant with relevant ISO standards.





























