What Did You Buy Today?

pontiac428 said:
Now I can't find it again, but NJ is similar to CA with aggressively regulating consumer uses of chemicals. A federal push for a renewed list of air pollutants was happening around June of this year that included the TCE, but I don't expect federal regulation on MEK anytime soon due to its usefulness and relative ease of control. Consumer law and environmental/occupational use laws are different, they can ban consumer use easily at any level. For example, TCE is only being banned as a brake and electronics cleaner, so it will disappear from the shelves soon for us consumers, but industry will still be able to use it for its other needs.

I'm not finding MEK here in Washington, either. What's crazy is I can buy gallon cans of toluene, way nastier stuff. The MEK substitute is methyl acetate, quite a bit different but less hazardous to inhale or release. We have seen acetate solvents replace just about everything that comes in a rattle can and hardly noticed a difference, but your Krylon is a lot safer today than it's ever been.
Click to expand...
no toluene here either. no naptha at HD.. Just frustration.
 
woodchucker said:
IS MEK outlawed? I have been looking for it in NJ and CT. I use it to weld plastics.
Click to expand...

Google MEK Gallon ... several links to it. Same for Naphtha (note spelling). Yes, I used to just go into HD and pick it up, but it is still around.

diychemicals.com

Methyl Ethyl Ketone - High Purity MEK (Butanone) - DIYChemicals

The highest purity, concentrated, easiest place to buy Methyl Ethyl Ketone, delivered to your door. This MEK is what you've been looking for!
diychemicals.com diychemicals.com

Even Amazon has it. Or MSCdirect


Locally, have you might try an autobody paint store. They usually carry a lot of solvents as well as mixed solvents.
 
Oh, I forgot, try McMaster.com. They have lots of chemicals/solvents/oils. Both MEK, Naphtha etc.

www.mcmaster.com

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
www.mcmaster.com www.mcmaster.com
 
That's twice the price of what it should be. I can judge by the price of Denatured Alc, which I paid $19 for around Jan or Feb.. MEK has always been about the same price.. both are in the 2x price on both of those links. Plus shipping... And DIY is even more.. I need them, but not that badly... I should drive over to PA to see what I can find.
 
Probably true, but gasoline (solvent?) also costs. I purchased a number of solvents, including MEK and naphtha, but had trouble finding denatured isopropyl alcohol (not denatured ethanol, which is what you get if you ask for denatured alcohol) .... Seems like all of the isopropyl was going for Covid cleaning! .... from HD not so long ago ~ 1 year. You can still get denatured ethanol from HD and places but is is really used as fuel and has other stuff in it... They do not always say what is in the can, but instead use a product manufacturer's name. MEK is now somewhat of a problem to find so the price goes up! By the way, denatured to me means that the water has been removed!

Yes, McMaster's prices, as are Grainger's, are higher than I want to pay. But McMaster's shipping is not unreasonable. I have purchase cutting coolant and gear oils from them and I cringed at the more recent prices, but the shipping was reasonable. Seems like all of these chemicals have doubled in price is the last few years.

I have never purchase autobody paint from NAPA but if there is a NAPA autobody paint store near you....? They carry MEK by the 5 and 50 gal cans, but not cheap. Martin Senour brand. McMaster's is easier.
 
The Hayden 1299 oil cooler and water separator with auto drain arrived. My 7.5 HP compressor is on the side of my garage in a closet of sorts I built for it. The garage is plumbed with RapidAir, and I have various water separators and desiccant filters. The air is pretty good, but I believe the cooler will eliminate most of the water from entering the tank. The blaster and plasma will be that much happier.
 
We needed our boring head for a project, but we have it dialed in for another project, so looked on Amazon.

There are a bunch of listing for identical units, a 3 inch and 2 inch, same orange box, different sellers.

Since our unit is 2 inch and the 3 inch with cutters was only $28.00 more. We got the 3 inch so we do not duplicate what we had.

The reviews were mixed, some stated the fit was poor, well, at first, it did seem loose. You coukd feel play in the head, but then the gib screws were not tight. So normal, considering.

There may be a bit more play than the other one, but once everything is tight it should be fine.
4c383ff8444b32d09b6eb0e0c8db10c3.jpg


Sent from my SM-G781V using Tapatalk
 
Gaffer said:
The Hayden 1299 oil cooler and water separator with auto drain arrived. My 7.5 HP compressor is on the side of my garage in a closet of sorts I built for it. The garage is plumbed with RapidAir, and I have various water separators and desiccant filters. The air is pretty good, but I believe the cooler will eliminate most of the water from entering the tank. The blaster and plasma will be that much happier.
Click to expand...
You are going to like that set-up!
 
Some enlightening numbers regarding your moisture content and proof your equipment will be “happier” by adding an aftercooler/water separator to the system. Assuming the 7.5hp is a recip compressor and had no ”aftercooler” before and discharging air out at 190 deg F at 116psig and making @ 25cfm and your ambient is 90 deg F. The moisture content can be calculated as: and (assuming my math skills are still intact, lol)

Moisture content without aftercooler
discharge temp 190deg F = .0035 lbs H20/ ft3 free air (ACFM) or .056oz
comp is 25cfm x .0035 lbs H2O/ft3 free air = .0875 lbs or 1.4oz per minute
avg run time 15min x 1.4oz = 21oz or 1lb 5oz or .164 gal per 15 min runtime

Moisture content with aftercooler (assuming 90 deg ambient + 20 deg F approach temp of the aftercooler)
New discharge temp 110deg F = .00045 lbs H20/ ft3 free air (ACFM) or .0072oz
comp is 25cfm x .00045lbs H2O/ft3 free air = .0112 lbs or .18oz per minute
avg run time 15min x .18 = 2.7oz or .17lbs or .055 gal per 15 min runtime

Essentially it’s almost 8 times less moisture in the system

.18oz vs 1.4oz per minute run

2.7oz vs 21oz per 15 min run

only way to reduce it more would be by adding a refrigerated or desiccant dryer
 
Compressorguy1 said:
Some enlightening numbers regarding your moisture content and proof your equipment will be “happier” by adding an aftercooler/water separator to the system. Assuming the 7.5hp is a recip compressor and had no ”aftercooler” before and discharging air out at 190 deg F at 116psig and making @ 25cfm and your ambient is 90 deg F. The moisture content can be calculated as: and (assuming my math skills are still intact, lol)

Moisture content without aftercooler
discharge temp 190deg F = .0035 lbs H20/ ft3 free air (ACFM) or .056oz
comp is 25cfm x .0035 lbs H2O/ft3 free air = .0875 lbs or 1.4oz per minute
avg run time 15min x 1.4oz = 21oz or 1lb 5oz or .164 gal per 15 min runtime

Moisture content with aftercooler (assuming 90 deg ambient + 20 deg F approach temp of the aftercooler)
New discharge temp 110deg F = .00045 lbs H20/ ft3 free air (ACFM) or .0072oz
comp is 25cfm x .00045lbs H2O/ft3 free air = .0112 lbs or .18oz per minute
avg run time 15min x .18 = 2.7oz or .17lbs or .055 gal per 15 min runtime

Essentially it’s almost 8 times less moisture in the system

.18oz vs 1.4oz per minute run

2.7oz vs 21oz per 15 min run

only way to reduce it more would be by adding a refrigerated or desiccant dryer
Click to expand...
I have the same Haden oil cooler thats shrouded and fan cooled on my 7.5hp compressor. The inlet temp is closer to burn the skin off your hand and the outlet is just above ambient! My math agrees with yours and the puddle of water on the ground agrees with both of us!
 
You must log in or register to reply here.
Back
Top