Bristle Blaster® Pneumatic (SP-647-BMC)
The industry standard for grit-free blasting. Simultaneously removes corrosion and generates anchor profile.
Applications · Singapore
Mill scale removal on new steel and fabrications
Tight, blue-black mill scale removed from new plate, sections and fabricated steel before priming, in the fabrication shop or on the erection site, without a blast pot.
The problem on site
Why this is done grit-free in Singapore
Mill scale is well bonded when the steel leaves the mill, but it is electrochemically noble to the steel beneath, so once moisture reaches the interface (quickly, in Singapore) it lifts and takes the paint with it. Specifications for structural steel, tanks and pipework therefore require scale removal to Sa 2½ before the primer.
For fabricators without a blast booth, for site-welded steel where the shop primer has burned back, and for the touch-up of scale left after blasting, Flakecoat supplies and uses Bristle Blaster® tools that remove mill scale and generate the profile in one pass, with no grit to sweep out of a fabrication bay.
For the specification
Typical figures
Sa 2½Comparable cleanlinessNew steel, mill scale removed
65–85 µmProfile in one passReady for shop primer
23 / 11 mmBelt widthsPlate faces and section edges
0Blast mediaNo booth, no disposal
How it is done
Method, step by step
Step 1
Step 2
Degrease
Solvent or alkaline washRemove oil and marking ink first; scale removal does not remove contamination and the primer will not tolerate it.
Remove scale
Bristle Blaster® · 23 mm steel beltWork with the belt rotation across the scale; the tips fracture and lift the scale and cut the anchor profile beneath.
Edges & welds
11 mm belt · Axial toolSection edges, fillet welds and inside corners with the narrow belt or the Axial model.
Prime
Within the recoat windowApply shop or site primer promptly; freshly prepared steel flash-rusts in Singapore’s humidity within hours.
Tools & consumables
Tools and systems used
Bristle Blaster® Ultimate Cordless (SB-701-BMC)
Mobile performance with safety switch for difficult access. Powered by the Cordless Alliance System (CAS).
Bristle Blaster® Electric 900W
High-power 910W electric drive with dead-man switch. Ideal for continuous workshop use and production.
Bristle Blaster® Axial (SDB-601-BMC)
Engineered to remove corrosion in areas difficult to access such as door rabbets and roof joints.
Bristle Blaster® Ultimate Double
High-power double belt system treating up to 3m²/h per operator. Includes safety switch.
Bristle Blaster® Underwater (Cleantech)
Water hydraulic driven unit for subsea surface preparation grades comparable with Sa 2.5.
The Prepper Q4 (Quattro)
Wide surface grit-free technology up to 4x faster than conventional blasting.
Bristle Blaster® Ultimate Pneumatic Set — Double (SP-801-W-BMC)
Take surface preparation to the next level with the Bristle Blaster® Ultimate Pneumatic Set – Double. This provides a working...
Where it applies
Related sectors
Questions
Common questions
Learn more about our heritage and the specialized services we provide.
How quickly must the primer go on in Singapore?
Freshly prepared carbon steel can show flash rust within a few hours at 80%+ humidity. Prepare only what will be primed in the same shift.
Can the tool remove heavy, thick scale from hot-rolled sections?
Yes; working speed drops with scale thickness. For large tonnages a blast booth remains the economic choice; the tool is for site work, touch-up and shops without a booth.
Do you offer scale removal as a service?
Yes, on site and in our Tuas workshop, followed by priming with the specified system.
Send us the scope for a quotation within one business day
Photos, drawings or a site walk are enough to start. SGD pricing, tools and crews from Tuas.