Questions tagged [chemicals]

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How to remove black burn marks from burnt white plastic?

A sheet of white hard plastic maybe 2 cms thick now has black burn marks on, and probably deep within it, from one of its edges being burnt off. Is there any chemical compound that will remove the ...
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Ash/soot test after a fire

Pardon me if this is not a correct community to ask this question. My town was affected by the recent Marshall wildfire in CO. Some streets are gone, it's surreal here. Our street is saved, but there ...
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I recently moved into a house and it looks like a chemical has been used on the stainless steel drain and left marks. Is it possible to clean it off?

Markings around stainless steel sink
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3 answers
203 views

Can chemicals soak into a steel sink and cause health issues?

I wonder…I have a 20 years old stainless kitchen sink in good condition. Somebody poured Green Gobbler into the sink. Green Gobbler is a drain clog dissolver (supposed to be kitchen sink safe and non-...
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1 vote
2 answers
59 views

Removing bugspray from painted surface

My wife spilled bugspray over this window ledge, which is wood covered with a layer of primer and two layers of interior semi-gloss. It seems impossible so far to remove the bugspray. The paint feels ...
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2 votes
2 answers
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Is there a way to rejuvenate an old bottle of Gorilla glue?

I have a fairly large (2 oz) bottle of "Original Gorilla Glue" which has been sitting on the shelf. I used it once or twice occasionally, but now it has gotten somewhat hard and crystallized ...
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How to handle carpet offgassing?

I moved into a new apartment and the carpet is offgassing VOCs. I'm quite sensitive to chemical smells and it irritates my nose and throat constantly. The carpet is around 1 year old, so it will ...
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Using air humidifier wick cleaned with home detergent - Any health concerns?

I have been using humidifier with rotating wick, and used to clean it with domestos detergent. This detergent as said by manufacturer contains: Non-ionic surfactants <5% - particular type not ...
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1 answer
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LoBase layer of paint resists chemical stripping

I fell in love with this vintage door at a local antique shop (100% solid wood, including the panels) and decided to use it for my bathroom. As it is easily 100 years old, it had many layers of paint. ...
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White spirit vs. meths vs. IPA for cleaning/preparing surfaces

White spirit (aka mineral spirits or mineral turps in the US), methylated spirits (aka denatured alcohol in the US), and isopropyl alcohol are each used for preparing surfaces, or removing oily ...
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Chemical Injection Valve for Static Inline Mix Chamber

I have well water. The water is acidic and needs Sodium Hydroxide (NaOH) solution added to adjust the pH. The system has a Pulsa Feeder static inline mixing chamber, part no STM100-PVC. The NaOH is ...
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How to know if neutralizer is needed after chemical paint stripping?

I just used Klean Strip paint stripper to remove some old paint from an exposed piece of wood near my stairs. The wood is pretty clean (grain visible and almost no traces of paint left) but I do plan ...
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What's the right way to mix and use boric acid spray for fleas?

My fleas were begging for it, so I let them have it.. sort of After an hour of trying to figure out why my sprayer won't spray properly I have realized boric acid is not soluble in water. Or is it ? ...
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2 answers
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What Household Items can be used to Clean Motherboards [closed]

I have a motherboard that require deep cleaning (its not just the dust we are talking about). I have seen over the youtube that people are using WD-40 and brake fluid to washaway the contaminants from ...
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Is this flowerpot insert made from asbestos?

I own three flowerpots with strange white inserts. I haven't bought them in fact they were already part of the 1970 built house when I moved in. I've heard of asbestos flowerpots but couldn't find ...
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Are there screws made of materials that should not be exposed to heat, smoke or propane?

I've been assembling a propane barbeque grill that came in a box. It came with an exact variety and number of screws to be used in assembly. But it's actually missing one screw. I found an old screw ...
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Combi boiler chemical replacement

I have a combi boiler (less than 2 years old, with plumbing that may be 25 years old) and I'm doing some work which will require a full drain of the heating system. I think I'm going to need some ...
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3 answers
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How to check whether demolition brick is safe to use?

I would like to reuse demolition brick from building that was part of chemical factory. Factory was closed about 10 years ago, I know that sulphides and acids were heavily used there. I wonder if it's ...
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Need tips, approach, or method(s) to eliminate smell/odor in a closet short of a tear down?

Here's some background: We bought this house in July of 2017. The previous owner left a hall closet full of GNC-style product (it was packed with pills of all kinds). It primarily smells of those ...
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Etching solution vs muriatic acid to prep concrete for epoxy

I'm thinking of ways to remove the concrete cream from my concrete in preparation for epoxy finish. Rather than grinding, I need to use chemicals. Initially was thinking muriatic acid but it's in a ...
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Disposal container for muriatic acid

I need to do work with muriatic acid and was wondering if storing the waste (12 Oz of acid per gallon of water) is okay to do in a regular plastic 5 gal bucket. My concern is whether the acid could ...
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4 votes
2 answers
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What's the difference between "silicone sealant" and "MS-polymer" sealant?

MS polymer (MSP) looks like silicone. It also comes in a tube, looks the same when it's liquid. Here are the differences I found with silicone caulk: it looks a bit less flexible when cured (looks ...
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Can I use vodka instead of isopropyl alcohol?

I have to remove some hot glue and apparently the trick is isopropyl alcohol. Of course, I don't have isopropyl alcohol in my house but I do have lots of vodka (don't judge). Can vodka generally be ...
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2 answers
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Washing greasy/contaminated construction textiles [closed]

I'm collecting greasy/contaminated construction textiles (shirts, rags etc) in a dedicated bucket and not with general laundry. Is there a recommended general (meaning it works with most types of ...
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2 votes
5 answers
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How can I remove residue left after removing aluminum foil from my windows?

Let's see whether this is a question for DIY or for Chemistry. I put up aluminium foil on my windows for a few days, to test whether it was a good way to avoid the heating by the morning sun. I put ...
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1 vote
3 answers
110 views

"nuclear option" for mold growth on ceramics and other tiles?

I have to clean a long-neglected area that has mold growing on tiled walls and floor. Soap and a good brush is called for, but I'd like to "fortify my assault" with household chemicals. Is there any ...
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Removing calcium carbonate deposits without damaging tiles

I live in an area with hard water, leading to calcium carbonate deposits all over my tiled bathroom. I want them gone, but I don't want to risk damaging the tiles. The red arrow points at deposits ...
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1 answer
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How to fix toilet jets clogged with chlorine tablet chunks

The flush on my toilet is weak. It went from strong to weak overnight. It flushes fine if I dump in extra water. I watched and the flapper does stay open until the reservoir is adequately empty. I ...
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Can I flush old bleach solution without hurting the environment much?

I live in the Midwest. Sometimes I clean things with a bleach solution (probably about 12:1 to 24:1 water:bleach), and end up with a bucket of solution. Now I have about 1/2 gallon of water+bleach+...
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1 answer
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Restoring plastic chairs

Before I take them to the dump, is there anything I can do to restore them? Are there any chemicals to clean them? I was going to repaint them using spray paint but it was taking too long and almost a ...
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1 answer
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Chemical drain cleaning - acid, base or something else?

There are industrial drain cleaners but according to my research on them, they are mostly overpriced bottles of simple chemicals such as sodium hydroxide. Chemicals that can (theoretically) be used ...
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3 votes
4 answers
2k views

Duct Cleaning: Is Duct Sealer Necessary, Non-Toxic?

A professional contractor is cleaning AC Ducts, and after he scrubs the ducts, he wants to apply an acrylic duct sealer and de-odorizer. The container of the duct sealer has minimal lableing and does ...
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How safe are flammables as indoor cleaners?

I just cleaned some range hood duct with Seafoam. I was wondering how long after initial application things like it or rubbing alcohol remain active on the surface to present a fire hazard. How do you ...
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2 answers
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What can I use as a concrete release agent for aluminum forms?

If I need to use aluminum sheeting as form for pouring concrete or another cement product, such as mortar/stucco, is there something (chemical) I can coat the sheet metal with so the cement doesn't ...
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1 vote
1 answer
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How should I dispose of Sulfuric Acid?

I have about 30 ml of leftover Sulfuric acid. There is a similar thread on this board suggesting ways to dispose of it. They involve adding baking soda after adding the sulfuric acid to water. However,...
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2 votes
7 answers
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How do I make carbon dioxide for a mosquito trap?

I have an insect/mosquito zapper. I want to attract the mosquitoes to this zapper to kill them. The best way to do this is by producing carbon dioxide next to it. I'm thinking that if I put a jar or ...
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Is this water stain from rust or (other) minerals

I have a 2nd floor hot-mopped deck with grouted slate tile placed on top of it. During rain, water comes out between the hot mop and tile layers and runs down the side of my home, leaving stains on ...
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2 answers
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Allergies in brand new apartment [closed]

Recently I moved into a new apartment, and have had pretty bad allergies since. I wake up with allergies that last a few hours and then go away around lunch time, but the allergies return at night. ...
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2 answers
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How to strip paint off cast iron?

I'm looking to refurbish a bench that disintegrated over the years. The bench ends are still in decent shape, but I need to clean off the remaining paint and rust. My main concern is that I don't ...
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1 vote
2 answers
340 views

Do polyphosphates reduce scale in refrigerator ice makers?

I am considering switching to a polyphosphate-containing water filter for my refrigerator ice maker/water dispenser. Currently, I use softened water to prevent calcium build-up in the ice maker/...
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2 votes
1 answer
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Sawdust from treated wood on my lawn

Over the weekend I built a playhouse for my kids in the back yard using pressure treated lumber. As I was cleaning up I realized that my lawn was covered in chemical laden sawdust. Has anyone here ...
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3 votes
5 answers
41k views

Metals in pool turn water green after adding shock, what's the solution?

Our pool hasn't been opened in 4 years. We are finally in the process of resurrecting it from the dead, and have spent a lot of elbow grease (and tears) to get it to the point its currently at. Last ...
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4 answers
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How to remove masking tape residue from linoleum?

I attached few pieces of masking tape to a linoleum floor to help a child with her exercises (long jump kid-style). Now when I removed the tape, there is residue left through the whole length of the ...
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1 answer
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Can hydrochloric acid vapors corrode nearby metal items?

I have a room where I exposed a brick wall and redid the mortar by tuckpointing. It look beautiful but the whitish residue from the mortar needs to be cleaned and the best way to do it is using ...
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1 vote
7 answers
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How to solve the problem of sticky Danish oil?

I ignored the warnings about not getting spray disinfectant on our oak kitchen surface which is finished with Danish oil, and now the surface has become really sticky, attracting dust and crumbs and ...
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1 answer
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Which pH should I aim for when neutralizing restored/refinished antique surfaces?

I have recently used different chemicals to restore, refinish and treat various types of wall and millwork surfaces. E.g. I have stripped old paint using Peel Away 1 from plaster and antique millwork,...
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3 votes
1 answer
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What is the proper way to dispose of used hydrochloric acid?

What is the proper way to dispose of used hydrochloric acid (e.g. Sureklean 600)? My municipal waste station does take toxic waste periodically but I was wondering if it can be safely flushed down ...
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8 votes
1 answer
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When to replace respirator filters?

I've got a respirator like this one: I assume with the particulate filters (for dust) you just change them when they get hard to breathe through, but what about the organic vapor or chemical ...
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4 votes
3 answers
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How can I mitigate copper naphthenate (copper green) smell indoors?

Our contractor treated the edge of some plywood and the bottom of some studs with copper naphthenate. The goal was to treat yummy wood at the concrete interface, which is a good thing since termites ...
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8 votes
1 answer
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Should I superchlorinate a freshly filled pool?

I have a small (2000 gallon) pool that I recently filled. I put a couple of 1" chlorine tablets into the skimmer 24 hours ago, and even after running the pump all day, my test strips are not ...
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