UNDER NEW MANAGEMENT
Blasting Services
Media (Blasting Product)
Blasting Services
Body Shells
Body Panels
Chassis
Suspension Parts
Brackets & Mountings
Engine Components
Drive Line Components
Steel Wheels
Race Car Chassis
and Body Preparation
Hydroblasting
Where To Find Us
Media (Blasting Product)
Blasting Services
Factory 3
44 Burgess Road
(the Canterbury Rd end)
Bayswater Vic 3153
Phone for advice or a booking
0493 631 576
Email:
Website: www.bjsarbmechanical.com.au
Media (Blasting Product)
Media (Blasting Product)
Media (Blasting Product)
Of all the media available for automobile restoration, there is not one that is "the best for everything".
Each of the media has its positives and negatives, many are best for one job, yet hopeless for any other. Some are quick! Some are fancy! Some have (what we call) side effects!
It all comes down to what is the best media for your automotive restoration process.
A GRADE MECHANIC ON SITE
All general mechanical servicing and repairs
at affordable rates.
Specialising in 4WD
Euro cars
Light commercial vehicles
EFI and Diesel
Brakes, Clutches, Gearboxes
Attention to detail and personal service.
BLASTING WITH CRUSHED GLASS, THE FIRST STEP IN A PERFECT RESTORATION
Abrasive and Non- Abrasive Media
The science is that everything has a “Measure of Hardness” based in the Mohs Scale. Eg: Talc = 1 up to Diamond = 10.
Typically, automotive (panel) steel has a Mohs of "6", so for automotive restoration to blast with a media that has a Mohs below "6" would be classed as a "Non-abrasive Media". Any media with a Mohs above "6" would be classed as an "Abrasive Media". We now can add Crushed Glass as a new class of Media, with a Mohs of "6.2 - 6.5". Crushed Glass is a "Fine Abrasive Media".
Being the closest in hardness to automotive steel, crushed glass is the perfect media for the first step in your restoration.
Non-Abrsaive Media:
If the task is to just remove old paint, as paint is around "2" on the Mohs, any media harder than "2" will do (soda/plastic/walnut shell/ corn husk etc). But that is all it will do.
Blasting with a non-abrasive will not remove rust. Be aware that with some of these media, there are side effects for your body shop/painter to overcome that can double preparation time.
Abrasive Media:
For Automotive Restoration Blasting the true restoration is to bring the project “back to bare metal”. This will tell you and your restoration shop what you are working with.
The enemy is rust. No way around it! Rust has a Mohs of "6+" as rust is still metal!
Fine Abrasive Media vs Abrasive Media
The harder the media the more abrasive - obvious! The most common blast media, across all forms of blasting, be it in Industrial, Architectural, Construction, Agricultural, Mining and often used in automotive, is Garnet. Garnet has a Mohs of "7.5 - 8" so would be at the start of the abrasive media scale that includes Steel Shot, Limenite and Sataurolite.
Crushed Glass ("6.2 - 6.5") being the closest in hardness to automotive steel is classed as a "Fine Abrasive Media", the perfect media for Automotive Restoration Blasting.
Crushed Glass vs Garnet:
The cost of Garnet and Crushed Glass product per tonne is comparable, the difference is Garnet can be used up to 5 times whereas Crushed Glass is mostly single use as it breaks down and becomes finer. As such a low percentage of the finer product can be recovered and used for specific jobs such as light panels, door skins or bonnets.
Benefit:
With crushed glass your automotive resoration is being blasted with pure product, not the lottery of being blased with second, third or fourth use media that may have already been used on a Bobcat, a sewer tank, an earth moving bucket and an industrial trailer before it hits your project.
Crushed Glass is a 100% recycled product, entirely non-toxic and inert and will not heat up or work harden the steel.
After Blast - Clear Coating:
At the completion of the blast, the Automotive Resoration Blasting preferred option is to clear coat with a phosphate metal sealer that is formulated to protect bare steel from rust and contaminants.
Being a thin clear coating you can still feel the profile of the steel and see what you are working on, nothing is hidden under heavy etch primers. The coating is not totally moisture proof but, with your project stored in a dry place, will protect the finish for many months. The coating does not need to be removed before your next steps of repair, sanding, priming and paint. You are still working on bare metal.
PRICE GUIDELINE
This is a guide only and current prices shown are plus GST.
Automotive restoration blasting is just as it says, we are not industrial blasters.
Our facility is dedicated to automotive restoration and as such each vehicle and its components will need to be assessed individually.
Rolling body shell, bare, with no bolt-on panels, all that is visible on its wheels including engine bay and boot = $1400
Body shell on rotisserie: Upper body and undercarriage = from $1700
Bolt-on panels: Outer and inner, doors, guards, hatch, nose panels = from $120 each
Bonnet, boot lid = from $240/pair
Panel van tailgate upper and lower = from $240/pair
Engine bay = $250 - $350
Steel wheels = $50 each
Suspension sub-frames = from $120 each
Diff Housings = $120 each
Brackets, mountings, hinges, suspension arms & components, manifolds, etc from $40 each
Hydroblasting on request.
HYDROBLASTING & SPECIALIST BLASTING
Hydroblast Cabinet
Hydroblast Cabinet
Hydroblast Cabinet
Suitable for a range of engine components, aluminium and soft metals.
Dry Blast Cabinet
Hydroblast Cabinet
Hydroblast Cabinet
Suitable for smaller parts and a variety of media, eg sand, crushed glass and garnet.
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