I was hoping someone could offer me advice about removing oil stains from a concrete driveway. They were already dried by the time we noticed. I've tried a couple of things but they're really stubborn. One of my house-mate's recommended a sand-blaster, but I'd rather not go through the fuss, and I'm afraid of creating a noticeably paler patch on the driveway. which is coloured and textured.
Use a water blaster instead (karcher, gurney, etc). You will end up
with a paler patch no matter what... but that's because you'll have
blasted away all the other crud that built up over time. If you clean
the whole driveway it'll match :)
- James
On 18 September 2012 20:59, Michael <melkin...@gmail.com> wrote:
> I was hoping someone could offer me advice about removing oil stains from a
> concrete driveway. They were already dried by the time we noticed.
> I've tried a couple of things but they're really stubborn. One of my
> house-mate's recommended a sand-blaster, but I'd rather not go through the
> fuss, and I'm afraid of creating a noticeably paler patch on the driveway.
> which is coloured and textured.
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Oil is a thick product so I would first thin it with petrol, then agitate it and as soon as it has dissolved oil then mop it all up quickly with something absorbent. Do not let dirty petrol dry on surface or it will just redeposit oil. Repeat till no oil visible, allowing petrol to soak a Tad longer each time. I would then dump a heavy domestic detergent on it like laundry liquid , scrub and blast with garden hose.
This is not advice. If you think the driveway colour may be affected... try a small hidden spot first. Don't blame me. Buzz
Michael <melkin...@gmail.com> wrote: >I was hoping someone could offer me advice about removing oil stains from a >concrete driveway. They were already dried by the time we noticed. >I've tried a couple of things but they're really stubborn. One of my >house-mate's recommended a sand-blaster, but I'd rather not go through the >fuss, and I'm afraid of creating a noticeably paler patch on the driveway. >which is coloured and textured.
On Tue, Sep 18, 2012 at 9:08 PM, Buzz <davidb...@gmail.com> wrote:
> Oil is a thick product so I would first thin it with petrol, then agitate it and as soon as it has dissolved oil then mop it all up quickly with something absorbent. Do not let dirty petrol dry on surface or it will just redeposit oil. Repeat till no oil visible, allowing petrol to soak a Tad longer each time. I would then dump a heavy domestic detergent on it like laundry liquid , scrub and blast with garden hose.
> This is not advice. If you think the driveway colour may be affected... try a small hidden spot first. Don't blame me.
> Buzz
>>I was hoping someone could offer me advice about removing oil stains from a
>>concrete driveway. They were already dried by the time we noticed.
>>I've tried a couple of things but they're really stubborn. One of my
>>house-mate's recommended a sand-blaster, but I'd rather not go through the
>>fuss, and I'm afraid of creating a noticeably paler patch on the driveway.
>>which is coloured and textured.
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On Tuesday, September 18, 2012, David Lyon wrote:
> There is a special concrete cleaner for such problems.
> It's available at Bunnings, works very well. Ask if you can't find it. Not
> expensive.
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On Tue, Sep 18, 2012 at 11:58 PM, Luke Hovington <lu...@hovo.id.au> wrote:
> Yea you would need some sort of oil base cleaning product (turps?) before
> using a karcha to wash/spread the rest away.
> On Tuesday, September 18, 2012, David Lyon wrote:
>> There is a special concrete cleaner for such problems.
>> It's available at Bunnings, works very well. Ask if you can't find it.
>> Not expensive.
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> if it's just oil and it's just a bare concrete driveway, laundry powder is
> a good start,
> depending on how badily it is engrained and soaked in, you'll find
> yourself using everything, from lanudry powder to bleech, carby cleaner,
> degreaser,
> going a little more intense from that hydrochloric acid is probably as
> extreme i've ever gone
> if it's a stencil type driveway, don't use beer in fact depending on the
> type of sealant you probably should use bleech and carby cleaner,
> On Tue, Sep 18, 2012 at 11:58 PM, Luke Hovington <lu...@hovo.id.au> wrote:
>> Yea you would need some sort of oil base cleaning product (turps?) before
>> using a karcha to wash/spread the rest away.
>> On Tuesday, September 18, 2012, David Lyon wrote:
>>> There is a special concrete cleaner for such problems.
>>> It's available at Bunnings, works very well. Ask if you can't find it.
>>> Not expensive.
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>>> Groups "hackerspace_brisbane" group.
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There is a method I've heard of, which sounds plausible in theory. But I've never tried it in practice.
You need some sort of porous, absorbent material (diatomaceous earth, bentonite clay, cat litter etc.) mixed with a suitable non-polar solvent (petrol, thinners, turps etc.) to make a thick paste which you spread over the oil, and allow it to absorb some of the oil, then repeat as needed.
On Tuesday, 18 September 2012 20:59:10 UTC+10, Michael wrote:
> I was hoping someone could offer me advice about removing oil stains from > a concrete driveway. They were already dried by the time we noticed. > I've tried a couple of things but they're really stubborn. One of my > house-mate's recommended a sand-blaster, but I'd rather not go through the > fuss, and I'm afraid of creating a noticeably paler patch on the driveway. > which is coloured and textured.
On Tuesday, September 18, 2012 8:59:10 PM UTC+10, Michael wrote:
> I was hoping someone could offer me advice about removing oil stains from > a concrete driveway. They were already dried by the time we noticed. > I've tried a couple of things but they're really stubborn. One of my > house-mate's recommended a sand-blaster, but I'd rather not go through the > fuss, and I'm afraid of creating a noticeably paler patch on the driveway. > which is coloured and textured.
> G'day
> if it's plain concrete i've heard you can use cement powder it's absorbic? i
> think you just hose or sweep it up
> cheers
> Brendon
> On Tuesday, September 18, 2012 8:59:10 PM UTC+10, Michael wrote:
>> I was hoping someone could offer me advice about removing oil stains from
>> a concrete driveway. They were already dried by the time we noticed.
>> I've tried a couple of things but they're really stubborn. One of my
>> house-mate's recommended a sand-blaster, but I'd rather not go through the
>> fuss, and I'm afraid of creating a noticeably paler patch on the driveway.
>> which is coloured and textured.
> To post to this group, send email to hackerspace_brisbane@googlegroups.com.
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On Wednesday, September 19, 2012 6:36:04 PM UTC+10, pelrun wrote: > Cement powder + water? I thought the idea was to clean the driveway, > not resurface it :)
just to be clear on this.. cement + water + aggregate(ie sand and rocks) + a little time = concrete
so plain ol' cement + water prolly equals a big mess... and and maybe it sucks the oil from the driveway..
anyways on another note, we had some 'CMA' at work which is used as a hardener in the manufacture of plasterboard, and it was very absorbic, ie if we left it uncovered in the workshop i would absorb the moisture from the air making it unusable.
> On Wednesday, September 19, 2012 6:36:04 PM UTC+10, pelrun wrote:
>> Cement powder + water? I thought the idea was to clean the driveway,
>> not resurface it :)
>> - James
> Well, there'd be no more oil stains...
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