Questions tagged [silicone]

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58 views

Why is silicone caulk “falling” or peeling away from new bath countertop and wall?

About 6 months ago, we hired a remodeler/carpenter to install a new bathroom vanity top. They caulked around the vanity and it looked good until a couple of months ago, when it started to gap and tear ...
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1answer
73 views

Is Advanced and Supreme silicone worth the extra cost over the All purpose silicone? [closed]

This is a general inquiry into silicone sealants that you buy at home improvement stores in 10oz tubes. Many of us have fallen a victim to “Good/Better/Best” marketing strategy of manufacturer ...
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1answer
38 views

Mend a Silicone lump

Last night I made a vertical silicone bead Roughly 1.8m long. I used a fugi tool. The bead has a 10cm section that looks lumpy in the Centre. Now it has been curing for 12hours. Can I cut this ...
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1answer
475 views

What caulk to use for basement leaks at cove joint where floor meets the wall? Polyurethane, silicone, or latex-based Drylok?

I noticed a small moist patch of the floor near a radon mitigation system. However, I suspect that it has little to do with the radon system but was due to failed caulking at the cove joint, as there ...
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1answer
38 views

Siliconed round windows before repainting jambs - should have done it after? [duplicate]

I'm repainting a room. I've scraped back the loose paint (in places back to plaster), filled, sugar soaped and, to my low standards, it's ready to paint. I also scraped out the old mouldy silicone ...
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1answer
71 views

Small hole in shower base

I have a shower at home that was installed before I arrived. Water leaks when someone takes a shower. By having water running through the drain, I confirmed the leak does not come from the drain or ...
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0answers
55 views

What is the difference between food-grade caulk and caulk labeled for kitchen use?

I want to caulk the edges of my kitchen sink. Since I use the sink regularly to wash food and do dishes, I want to make sure there won't be contamination. I am considering 2 types of caulk. This food-...
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1answer
474 views

Thorough removal of uncured silicone sealant

I have used silicone sealant to seal our toilet bowls's socket against the floor tiles. It turned out, the sealant was overaged and didn't cure anymore. So the socket and the bowl is contamined with ...
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1answer
73 views

How to apply silicone to an edge (tidily)

How can I coat an edge with silicone? There are caulking tools for all kinds of joints such as these, but there seems to be no such tools for edges. I tried using my fingers, but this is far from tidy....
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0answers
21 views

How to clean off old elastomeric

We have a flat roof that sprung a leak last year, I'm just getting around to repairing it. What I found is that the existing elastomeric coating was not put in correctly - it is bubbling (meaning the ...
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1answer
80 views

Is a long shower the main cause of this leak? Would clear silicone on all grout lines help?

We are in a brand new house for the past 1 year. From the first month onward, we have noticed water coming out from under the door jamb pictured here. When we put a plastic sheet all over the shower, ...
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2answers
2k views

Plumbers Silicone Grease vs Dielectric Grease

Can I use plumbers silicone grease as a substitute for silicone dielectric grease? They both appear to contain dimethypolysiloxane and silicone dioxide. Is this the same product given different ...
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1answer
62 views

Is caulk referred to as silicone caulk?

I know there is a difference between silicone and caulk? Sometimes I see caulk referred to as silicone caulk which makes me think it is silicone or a type of silicone. Is it correct to use the term ...
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0answers
79 views

Should I use silicone or caulk between skirting board and vinyl tiles, cement and vinyl tiles?

Should I use silicone between vinyl tiles and wooden skirting? I imagine yes since the skirting board may contract even though the tiles do not? What about if there is no skirting i.e. vinyl and ...
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2answers
263 views

Which caulk around the sink in kitchen is a health-safe?

I need to glue a metal sink within the hole in the countertop - a gap has appeared in one place of contact-edge between the sink and top-counter. Many people have recommend silicone. My question is ...
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0answers
33 views

Good way to seal a large ceramic tile to a glass surface?

I complete glass reptile cages by attaching electric heat tape to part of two of the four walls and under about 1/3 of the floor to create a “hot spot.” There is a thermostat with a sensor probe ...
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1answer
59 views

How do I break a shower tray silicone seal with limited access?

I have a leaking pipe joint under my shower tray and need to remove the shower tray to gain access. The side of the tray is sealed to the wall with silicone. The top of this joint is covered by the ...
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1answer
31 views

Sealing skirted bathtub

There are plenty of tutorials for sealing/caulking bathtubs. However, my bathtub has a kind of skirting around its edge, as in picture: How do I go about that? Should I caulk both edges? I plan to ...
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1answer
369 views

Accidentally removed part of rubber strip between bathtub and glass while replacing silicone caulk

I've had moldy, leaky silicone in my shower for a while, and decided it's time to replace it. But I got over-eager in pulling it out and got a chunk of an also-moldy rubber seal/spacer/gasket that's ...
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0answers
207 views

Recipe for homemade Sugru (Oogoo) that permanently adheres to objects

https://www.instructables.com/id/Homemade-Sugru-IMPROVED/ has a reply of: Let's see... 1.5 units (by volume) of cornstarch mixed with 2 units of silicone. Add some kind of paint for color. OR maybe ...
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2answers
46 views

How to keep neutral silicone?

So, I bought this neutral silicone tube to seal a couple of cracks. The tube of silicone is still half full. How do I store it?
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0answers
128 views

What is the right viscosity of silicone grease for ceramic-discs in mixer faucet?

Hi. What is the right viscosity of a silicone grease to lubricate between the ceramic-discs of single lever mixer faucet? NLGI-00,NLGI 1,NLGI 2 etc. Thanks.
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3answers
4k views

How do I clean sealant/silicone from a glass mirror?

I did a poor job of applying silicone sealant to the seam between a glass mirror and the splash back below it. I need to clean-up the smears that I got onto the mirror and the splash-back. How do I do ...
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1answer
68 views

Spreading silicone caulk thin?

I'm using silicone as an impromptu paint/varnish (the object to be varnished can and will flex in ways typical varnish won't survive). I've used a bit of cardboard as a spatula to mild results - not ...
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2answers
7k views

what's the difference between “silicone sealant” and “mastic/MS-polymer sealant”

MS polymer (or "mastic") look like silicone. It also comes in a tube, looks the same when it's liquid. Here are the difference I found with silicone caulk: it's looks a bit less flexible when cured (...
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0answers
438 views

Removing old silicon sealant and it's very sticky

I'm replacing some old silicon sealant around my bathroom sink. I've already done around the bath tub and that was fine: I removed the old sealant with a knife, cleaned it up and reapplied a new bead. ...
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2answers
382 views

Does washroom silicone caulk turn into goo after time?

I found this tube of clear washroom GE caulk in the closet that hasn't been used in over a year. When I tried to apply it yesterday, it was like goo even after drying it for 24 hours. I want to know ...
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2answers
277 views

Remove silicone stain from ceiling

I made a mistake and ended up with a very light coat of cured silicone spread in the ceiling. So looking at an angle, this ceiling area is shining. I can't just scrap it off because it very thin and ...
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1answer
211 views

Would applying silicone grease to an EPDM seal/gasket be helpful or hurtful?

I'm repairing a Samsung front-load washing machine and had to take the tub apart. The tub consists of two halves which are joined by a number of bolts and a thin (approximately 1/4) seal which ...
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1answer
2k views

Shower leaking out the grout

First off, I am not very handy, and my husband is even less so. We have lived in our house almost 2 years and it is 13 years old. During the inspection, I believe the grout in the corners was ...
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1answer
32 views

Silicone use to bond wood boards at high temperature? [closed]

I'm in a composites manufacturing class, and I'm looking to make a one-off carbon fiber mountain biking handlebar from prepreg. As I don't want to invest in the metal needed to make a proper mold, ...
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4answers
3k views

Alternative to Silicone Wood Filler for Door Frame

We're very nearly at the end of a very tiresome refurb of our downstairs area. As you can see from the photos, our builder has used silicone wood filler where the floor meets the door-frame. His ...
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2answers
582 views

Helicoil for plastic

My automower have been opened too many times/with too much force, so the thread is gone some places. Could I use some building silicone I'm the holes, or will it come out the next time I unscrew?
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2answers
219 views

Mounting Acoustic Foam in a rented flat

I'm looking for a reversible way to mount my acoustic foam on the wall. My current plan: using Sanitary Silicone from a cartridge. This is in the hope that it would both stick easily and is ...
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2answers
443 views

Is it okay to apply silicone sealant on damaged silicone?

I did what was suggested and called back window installers to seal it with silicone (they left exterior sealed and water leaked). They told me it's not their job to seal the window only make it but ...
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1answer
110 views

Supporting Shower Mixer with Silicone - is this acceptable?

I recently asked a plumber to fit a new shower. For some reason he used a large lump of silicone to support the middle of the shower: Is this acceptable? Is it safe? Whenever I move the shower handle ...
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0answers
65 views

Put new silicone on top of old bead

The old silicone bead has spots of mould, I believe the proper way is to remove the old silicone first then apply new silicone to get the same thickness and outlook. But I wonder if any thing bad can ...
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1answer
5k views

What type of sealant to use on skylight to seal glass and frame

I have a leaky skylight, I actually think that the leaks are coming from the seal between the glass and the frame rather than around the flashing or anything like that. What is the best calking / ...
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1answer
1k views

How can I repair cracks at corners of tiled walls?

I recently had a bathroom renovated these cracks are appearing in the corner of shower cubicle where two walls meet . Obviously workmanship not been good but is this easily fixed with a reliable long ...
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1answer
1k views

Should I use caulking or silicone to seal around a new door frame of exterior stucco house?

A have installed a new exterior door frame to my stucco house and I still need to seal the perimeter before the winter rains. However, since I plan to repaint the exterior stucco a different color ...
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2answers
188 views

Will silicone sealant not be waterproof after 14 hours?

I had to silicone seal a small gap around bottom joint of our shower screen, where it is attached to the wall. We realised that a small but steady drip was soaking the floor over time. I sealed it ...
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1answer
290 views

Building water tight box from plywood and HDPE

Origin I built a box out of 0.3" (8mm) plywood sheets framed by 3" (75mm) by 2"(50mm) staffs. The box is about 3' (1000mm) each side and 2' (600mm) deep, has a floor but is open at the top. The box ...
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1answer
78 views

Silicone Grease

I was told that silicone grease shouldn't be used on a silicone seal or gasket, as it will swell or even destroy the seal. I know that some hydrocarbon-based greases are bad for rubber seals, but ...
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1answer
96 views

How can I remove exhaust pipe cover that's sealed with silicone?

I want to remove and replace the exhaust pipe cover shown in the picture below, but I can't get it off. The wall is made up of (in the order from outer most material to the inner most material: ...
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7answers
6k views

How do I easily remove silicone?

Since some parts of the siliconed area of my bath tub are damaged, I need to replace the silicone. Is there an easy method to remove that silicone?
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2answers
229 views

Locating a Weatherstrip for door that is NOT foam and vinyl

I have a standard Kerf weatherstrip for my door. Because it is made of vinyl and foam, my cat can shred it to pieces. Is there another type of weatherstrip (rubber, silicone, etc.) that will be more ...
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2answers
366 views

How do I paint over unpaintable silicone?

So I stupidly used unpaintable silicone to seal my bedroom window... On the inside. How can I paint over this unpaintable silicone? (GE brand).
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1answer
2k views

How to remove silicone from a porous wall?

I recently removed a door bell and I got a sillicone stain in the wall. The wall is basically red brick. The brick individually are kind of irregular and present some superficial porosity. This ...
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2answers
11k views

How to remove silicone from brick

I had my windows replaced earlier this week. The old windows had metal U brackets to guide the rolling shutters. The gap between them and the brick wall was closed using some kind of (grey) silicone. ...
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1answer
916 views

Shower silicone caulk keeps failing, options for never fail?

So, I have two issues. Both related to the same solution. One shower keeps breaking the silicone seal and then letting water through. The other shower has standing water against the silicone and I'm ...