Frost King B2 Mortite Fingertip Caulking Cord, 1/8" x 90 ft, Grey

The product description does no say how wide this roll is. There used to be wide and narrow versions of the product. I am taking a chance a buying it anyway because the picture shows the right number of calk strands. The wooden covers of my crawlspace vents do not fit air tight, and the furnace air ducts are in the crawl, uninsulated. Between the crumbly cinderblock foundation, and the square of plywood used to cover the vents, there is an irregular gap that must be filled airtight before each winter. Tape won't stick, regular calk can't fill the big holes and regular calk will not stick to dirty or crumbling surfaces. If you use any other calk and it falls off in mid winter, you cannot re calk if the temp goes below zero. Mortite is awesome. You can use the whole width, or separate the strands to make a narrower strip. It is like pliable clay, clean and easy to work with. It used to be reasonably biodegradable, made of chalks. It doesn't bond permanently, but sticks great against brick, cinder, rotted wood the problem surfaces. Here is how I seal my vents. Remove plywood vent cover. Cut a square of closed cell foam to fit the opening. and place it into the opening on top of the screening. (I cut up the foarm mat sold to use under sleeping bags). Cut four lengths of the widest mortite (about an inch wide) and lay the strips about the opening so the center line of each strip is on the edge of the vent openting all around. The opening will be 'framed'. Press the putty lightly against the foundation, just enough to hold it it place. Carefully press the plywood vent cover back into the vent opening. The vent cover will press into the mortite lining the opening and make a great seal. Then, and this is the most important part, break off four more strips of mortite to cover the four sides of the rectangle opening. Lay each strip so half the strip overlaps the house foundation, and half overlaps the vent cover. Now you have a mortite sandwich with the edges of the vent cover. Press the Mortite tightly against the foundation of the house to make it sticke real good. Lasts all winter airtight, and my vent covers are rotted and wet. In spring, the putty comes right off

This is the standard in clay window caulking. It comes in a roll and has several strips that you can choose the size you need from. It is better to apply when it isn’t freezing cold out, but you can when cold too. Just have to push harder. I have plants on my windowsill and this helps a lot when I caulk the windows. Also, easy to remove in the Spring, and no worries about apt management fuss on this either.

This is a good way to seal up SMALL gaps and keep the cold/hot air out or from escaping. This size is good for gaps of approx 1/8” It allows you to press some into the gap and have a bit to press down on either side of gap for a good hold. This also allows for easier removal when time comes. One important tip is to let the roll warm up before you try to peel the cord. When it is warm it is easy to handle and unroll the cord. If it is cool or cold it is harder to handle and spills apart easily. Not a deal breaker, i just find it much easier to handle while it is warm.

This works exactly as described. It can sit unprotected in your cabinet for 2 months and be just as pliable as when you opened the package. It stays the same medium grey. If you're fussy about appearances, just try to keep your lines clean and placement subtle, because it's pretty visible by default. Not ugly, but visible. It's like a firm playdo or clay, so you can gently unravel a singular rope (or 3 or whatever you need), break it off, then gently apply and press into cracks. There was no need to wear gloves; I applied directly with my fingertips. If you change your mind or something, just get a hold of a small piece and pull it back out. Obviously put this where you would theoretically use caulking or some other semi-permanent seal. This isn't like a foam strip for helping with gaps in things that open and close, like where the door meets the frame. This is however perfect for cracking where the frame meets the wall. Personally, I suggest getting a few materials to help with different issues (this for cracks, foam strips for door seals, etc). I didn't notice a massive decrease in my heating bills, but I realized the attic in my place has horrible insulation and drafting, so I simply have no reliable data to report on that aspect. I wouldn't personally use this anywhere with large amounts of wear, like in degrading shower tile. It would be great to shove it there until you buy some proper material, but I don't see this as a permanent solution to bigger problems. Sealing drafts from small cracks? This is an ideal product.

Stuck and stayed when it was above freezing, so good adhesion then. But didn't seal well once we went down to zero temp. Good quality when it worked. Still flexible when below freezing, but stickiness was lost once hit below that. No smell. Good color match to white.

Easy to use / apply, goes a great job sealing up very old windows at mother-in-laws house. Basically strips of round clay you peel off and press into the cracks along the edges of the windows. Does good at stopping drafts, and in spring, comes off easy. I've used the chalk like rubber sealing for around windows, but thats always very hard to do (hard to squeeze it out of tube), and not as easy to get off in the spring. So I'm sticking with this easy to use clay-like solution.

I am so sensitive to drafts that I can feel cold air in a room with my nose as soon as I enter it. This stuff works amazingly well! Here is what I wish someone would have told me when I was looking to buy this. You do not need vision to apply this. I am totally blind, and I am able to do this without any site at all. It feels like silly putty. All you need to do is press the stuff in the gaps, and the noise and the cold draught go away. This is easier than using plastic on the windows because it does not require the use of tape, a hairdryer, a chair to stand on when you have to reach the high places, or anything else. It requires the ability to use fingertips to press it where you need it, and that's it. If I notice a draught in my house, I am uncomfortable and cannot get anything done. I am extremely sensitive and aware of this. After someone pressure washed my house, I think it might have dislodged a little bit of this at the bottom of my door. There was literally a quarter of an inch that may have come loose. I was distracted by the draft for days until I figured it out. All I had to do was use my finger to push it back in to the area and that was it. It is easy to remove. So if you are renting a house, this is perfect. Just grab hold of it and begin dislodging it from wherever you have it and it will release itself. This is my first review ever, but I actually thought it was important enough because I just used the stuff after owning it for four years, and I still love it today. The coldest it gets is 28 degrees in the winter. But it is 70 degrees outside now, and I still can feel a draught when it comes through the door at the bottom. So it does not matter what temperature it is outside, it matters that I can seal the draught from coming in. I will shiver outside if it is 70 degrees with the slightest bit of wind. This is what I would have wanted to read when I was doing my homework. I hope this helps you too.

Far too hard to work with, making the job take at least 4x as long. I tried several rolls to mkae sure I had one that wasn't dried out, but even so, it WILL NOT, no matter what technique you use, come off the roll in long, easy-to-press-in lengths. No matter how careful you are, it tends to tear off in 1-2" strips, each of which must then be put in place one little bit at a time. What a ridiculous system. Just package the stuff in a way that it peels easiliy off the roll. Cuz this sure doesn't

I use this to winterzie my patio door for winter and the misnus thirty weather to keep the heat in. Works wonders and is magical. I now can save money on heat and actually stay warm in my place.

This is like Plasticine, and can fill really really big gaps as well as little ones. Very easy to use; doesn't need any tools, or even any precision as you can simply squish it into corners and awkward cracks. And you can take it off if you need to. No idea why I couldn't find a UK stockist - it's a very useful product - but the delivery from the US was just fine, and it actually arrived a week earlier than I expected. Recommended.

Feels like plasticine. Haha. Good stuff. I bought it by mistake, thinking it will harden in place.

Easy to use and reapply. Helped seal the gap between the backyard window frame and the floor perfectly, could feel the difference after applying the cord, no more cold air coming in the house through that gap.

This caulking cord has been brilliant at stopping droughts from my windows, so easy to work with because it’s so pliable and easy to stuff into crevices. Doesn’t look messy at all if you do a neat job with it. Adheres to paintwork really well when well pressed in and stays put. An excellent purchase *****