Outer Limits 4x4 Board

any one done this?
whats your setup?

ive been trying to get the paint off an outboard and its gettin messy

cheers in advance

I haven't personally ever blasted at home but we have a small blast unit at work we just make a Barricade out of cheap tarps (sides and a floor) so that most of the shot is collected and can then be reused. this will cut down on waste and mess but you will get shot to hell with the rebounded shot off the walls

I fix sandblast gear for a livin.Most backyard guys general have a timber frame set up with containment sheeting nailed to it on a concrete floor if you want to resuse the media. Good idea to have an air feed helmet or a good resperator.
Is the motor still together or just doing the cases.

I've done a couple of small things, the sand (garnet) goes everywhere, it bounces back at you hard so you need long pants, long sleeves, gloves, full face mask etc

it's not fun

80's_delirious wrote:I've done a couple of small things, the sand (garnet) goes everywhere, it bounces back at you hard so you need long pants, long sleeves, gloves, full face mask etc

it's not fun

yeah and christ you use alot of it! at 25 bucks a small bag I would want to recollect it. i stick to using a wire wheel for most stuff even after buying the sand blaster. easier to set up, less stuffing about and faster.

sand blasting = brilliant if you have a brilliant set up.

Whatever you do DON'T use sand as a blast medium as it is very dangerous for your health.

Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

http://www.justtools.com.au/prod4035.htm" onclick="window.open(this.href);return false;

Hear good things about wet sandblasting, never seen it done though
The Karcher kit is about $120

Clanky wrote:http://www.justtools.com.au/prod4035.htm

Hear good things about wet sandblasting, never seen it done though
The Karcher kit is about $120

very cool, so does that just attach to a normal karcher and suck the sand through the extra hose? does the risk of silicosis disappear when its done in water?

Yup, wet is the way to go....does a really good job

thehanko wrote:

Clanky wrote:http://www.justtools.com.au/prod4035.htm

Hear good things about wet sandblasting, never seen it done though
The Karcher kit is about $120

very cool, so does that just attach to a normal karcher and suck the sand through the extra hose? does the risk of silicosis disappear when its done in water?

Maybe not eliminate, but certainly reduce. You would be standing further away from the nozzel, and the water would help to stop dust rising up.

Would be interesting to know if these things are actually any good at blasting compared to a good air setup.

Get a cheap 2 man tent($20) to do it in. Makes life and clean up a little easier.

Thats not a bad idea.....

the wet kits are ok, I used to sell pressure washers or a living and sold those kits as well as larger ones, the bigest problem is the media has to be kept VERY dry or it want draw, also sometimes the venturi system allows water back down the draw tube which doesnt help and it is near impossible to reuse the media. When they are working they do a great job though and are fine for small home jobs. they wont be as effective as a proper traditional blast job though

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

i thought the problem was to do with heating the sand on impact etc? probably way off the mark though.

if it was just inhalation of sand then sex on the beach would be far more hazardous.

thehanko wrote:

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

i thought the problem was to do with heating the sand on impact etc? probably way off the mark though.

if it was just inhalation of sand then sex on the beach would be far more hazardous.

silicosis is from dust inhalation.Its not real nice and typically you would find it comes about later on in life. You can get the same from any dusty environments which can be inhaled, EG coal, dust storms, farming, 4wding, wheat silos, etc.
It depends on concentration and exposure of the contaminant and other factors like smoking or genetics can increase the problem. Im no expert (and really not that interested in medical things), and only know this as my grandfather got this from being buried in a coal bunker on a ship.

Wet sandblasting should markedly reduce or eleminate dust. There is a better pic on the link below. Looks pretty simple


http://www.karcher.com.au/aus/Products/ ... plications" onclick="window.open(this.href);return false;

thank you for all the replies guys!

took note of all that was posted.....................




and decided to buy a grinder and a wire brush and do it with that intead!

came up prety good and im trying not to fart cause i know its gonna be dusty!

carp every where but it did a good job and now ready to paint!
cheers again all



owe yahs all a fishin trip

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Guys installing asbestos 30years ago probably said the same thing.

shakes wrote:

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Guys installing asbestos 30years ago probably said the same thing.

Well said

cruzinnboozn wrote:

shakes wrote:

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Guys installing asbestos 30years ago probably said the same thing.

Well said

Saftey clowns agian
I also have worked with asbestos when i was 16 i'm 49 now
Asbestos is most harmful in its raw untreated state
Asbestos was widly used in the manufacture of clutch plates and disk brake pads i operated a grinding machine used to thickness the clutch plates
with nothing more than a paper type dust mask

So far in this tread i should be dead from silicosis & asbestosis

Hamo wrote:

cruzinnboozn wrote:

shakes wrote:

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Guys installing asbestos 30years ago probably said the same thing.

Well said

Saftey clowns agian
I also have worked with asbestos when i was 16 i'm 49 now
Asbestos is most harmful in its raw untreated state
Asbestos was widly used in the manufacture of clutch plates and disk brake pads i operated a grinding machine used to thickness the clutch plates
with nothing more than a paper type dust mask

So far in this tread i should be dead from silicosis & asbestosis

And some people smoke cigarettes until they are 102 years old. Just cause it's bad for you and doesnt kill you straight away, the cards are still stacked in it's favour

thehanko wrote:
if it was just inhalation of sand then sex on the beach would be far more hazardous.

Sand gets into EVERYTHING .. dust masks must be worn and sensitive areas protected ..

Hamo wrote:

cruzinnboozn wrote:

shakes wrote:

Hamo wrote:

Harb wrote:Sand is ok as long as you use breathing apparatus ...... but yes , silicosis would really suck

Here we go agian (outers saftey crew)
I deliver sand 6 days a week. I dont have a breathing appartus nobody at the quarry has a breathing apparatus.

A plain old dust mask and saftey glasses should do for a back yard job.

Guys installing asbestos 30years ago probably said the same thing.

Well said

Saftey clowns agian
I also have worked with asbestos when i was 16 i'm 49 now
Asbestos is most harmful in its raw untreated state
Asbestos was widly used in the manufacture of clutch plates and disk brake pads i operated a grinding machine used to thickness the clutch plates
with nothing more than a paper type dust mask

So far in this tread i should be dead from silicosis & asbestosis

~20000 people worked at wittenoom (asbestos mining town) at its height. ~800 of those have died from asbestos related diseases. So the odds are better (for death) than smoking. But as with any of these health hazards, there will be more people walking around than dead or incapacitated.

The effect of dusts are related to particle size (and surface area). Smaller particles can be inhaled more deeply and have more effect. Sandblasting breaks the sand grains into smaller pieces, and/or abrades small particles from the grains. Concrete cutting is much the same.

Working at a quarry/mine (or sex on the beach) is nowhere near as hazardous, as the particles you inhale are much larger and fewer (in number and surface area).