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Sikaflex 1A polyurethane moisture cured
- Thread starter hal1
- Start date
rcktsled
Well-known member
The instructions say it just needs to be exposed to air to cure.
rcktsled
Well-known member
Yes, it is moisture cured, but apparently there is enough moisture in the air to do the job.
djjsr
Well-known member
Good stuff but takes a long time to dry.
Zeke
Well-known member
Ever had a bottle of Gorilla glue get hard after you have opened it? Just that much ambient humidity entering the bottle starts the reaction. I'm told that floating some paint thinner on the top will keep the glue much longer.
But yeah, you don't need to moisten the joint unless you live in Phoenix and it's summer.
But yeah, you don't need to moisten the joint unless you live in Phoenix and it's summer.
But yeah, you don't need to moisten the joint unless you live in Phoenix and it's summer.
Yes I live in Phoenix. 10% humidity right now, but I would be doing this tomorrow morning,
djjsr
Well-known member
Yes I live in Phoenix. 10% humidity right now, but I would be doing this tomorrow morning,
THAT is low humidity. Let us know how long it takes to dry.
THAT is low humidity. Let us know how long it takes to dry.
As long as it dries eventually. This is going behind the wall. You can see my previous thread on filling a wall gap with polyurethane on my house that's being built. The installation will be installed the middle or end of next week, so I may never know how long it took to dry.
This is what I'm using it for, but I'm guessing that everyone who reads this thread saw that one too.
http://www.garagejournal.com/forum/showthread.php?p=5625727#post5625727
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The Google is a wonderful thing. Oh, you guys are pretty good too. Found this on the Sika web site. Thanks all, we're probably done here.
"Its also a good point to note that in dry conditions a light mist of fresh water from an atomiser spray bottle over the surface of the Sikaflex will enhance the skinning and initial cure speed due to the increase in available moisture. This is most helpful in dusty conditions to avoid dirt particles being lodged in the uncured surface before the Sikaflex skins."
Dry? Dust? Yup!
"Its also a good point to note that in dry conditions a light mist of fresh water from an atomiser spray bottle over the surface of the Sikaflex will enhance the skinning and initial cure speed due to the increase in available moisture. This is most helpful in dusty conditions to avoid dirt particles being lodged in the uncured surface before the Sikaflex skins."
Dry? Dust? Yup!
THAT is low humidity. Let us know how long it takes to dry.
Since you asked, been almost 2 1/2 days, and it seems pretty set. There's a little give when I push it, but it's pretty solid.
Here's the story. It was pretty tough to gun, but all 5'6", 150lbs of me was able to get it out with 2 hands on the gun. Then I noticed it expired a month ago. I'm guessing it's good, but I was a bit bothered. The construction supply store (shout out to HD Supply) gave me a full refund even though I had used it up.
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djjsr
Well-known member
Here's the story. It was pretty tough to gun, but all 5'6", 150lbs of me was able to get it out with 2 hands on the gun.
I had to do about 90 feet and after the first 10 feet I bought a cordless Ryobi caulking gun. It works GREAT for thick substances like urethane.