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Old 05-13-2005, 10:22 AM   #1
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Sikaflex at Home Depot?

I saw some advertised in the latest circular...but its listed under "concrete products". so I poked around on sika's website, and found descriptions of the material...compared it to what they sell at Airstream's website. I'm wondering if these 2 things are the same, and just packaged and marketed for different purposes.

it would be nice to be able to just stop by one of the 3 HD locations on my way home from work to pick up sealant, should the need arise...rather than pay 5 bucks for shipping.

anyway. Sikaflex 221 is described as "...a high-quality multi purpose non-sag 1-c polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer".

"Sikaflex Construction Sealant" is described as "..a moisture-cured, 1-component, polyurethane-based non sag elastomeric sealant"


Sounds like the same thing to me. what do you think? close enough?
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Old 05-13-2005, 10:37 AM   #2
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that would be nice, it would save the pre planning when you need to seal something.
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Old 05-13-2005, 11:01 AM   #3
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here's some links to product info on sika's website:

sikaflex 221 is what they sell at airstream.com:
http://www.sikaindustry.com/ind/ipd-...-transprod.htm

this is what they appear to sell at HD:
http://www.sikaconstruction.com/con/...er-sealing.htm

hard to see the difference.


and in this pdf info sheet on the HD stuff: http://www.sikaconstruction.com/ht-c...Sealant-us.pdf

"...apply to concrete, wood, brick, alluminum, steel, glass, tile, marble, stone, and etched pvc"
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Old 05-13-2005, 02:29 PM   #4
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They are not equivalent. The 221 contains polyisocyanate prepolymer, not in the construction sealant. I think the 221 also has slightly higher elongation.

They're not equal, but I'm not saying you shouldn't use the HD sealant. I use what the factory used.
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Old 05-13-2005, 03:26 PM   #5
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That's a plus

[QUOTE=markdoane]They are not equivalent. The 221 contains polyisocyanate prepolymer, not in the construction sealant. I think the 221 also has slightly higher elongation."

I could use slightly higher elongation.
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Old 05-13-2005, 05:43 PM   #6
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Quote:
Originally Posted by chuck
here's some links to product info on sika's website:

sikaflex 221 is what they sell at airstream.com:
http://www.sikaindustry.com/ind/ipd-...-transprod.htm

this is what they appear to sell at HD:
http://www.sikaconstruction.com/con/...er-sealing.htm

hard to see the difference.


and in this pdf info sheet on the HD stuff: http://www.sikaconstruction.com/ht-c...Sealant-us.pdf

"...apply to concrete, wood, brick, alluminum, steel, glass, tile, marble, stone, and etched pvc"
Well? How much was it???
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Old 05-13-2005, 11:55 PM   #7
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Oh my.

Quote:
Originally Posted by Tin Hut
I could use slightly higher elongation.
Oh you bad, bad boy!
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Old 05-14-2005, 06:10 AM   #8
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Quote:
Originally Posted by balrgn
Well? How much was it???
airstream.com wants $7bucks and change for a tube...PLUS shipping, no doubt.

HD: $3.98
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Old 05-14-2005, 02:29 PM   #9
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Austin Hardware & Supply has Sikaflex-221 at $5.47 a tube. 'Gray' is fairly close to aluminum.

My wife has stopped asking why the Vulkem and Sikaflex tubes are in the freezer. This greatly extends the shelf life of an open tube. Cap the end with aluminum foil and put it in a couple layers of bread wrappers. You can nearly use it right away (I'd worry about condensation on your applied bead if it was cold in a humid environment).
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Old 04-13-2010, 07:14 PM   #10
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Gold or platinum?

I just exhumed this thread to find out if there is any reasonably priced source for Sikaflex 221. Also does any one know what precious metal it contains. Is there any reasonable alternative for small touch ups?

Thanks,

Ken
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Old 04-13-2010, 08:52 PM   #11
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Many of the Sikaflex products are used regularly in the construction trade. You should be able to find a construction sealants specialty shop in any large city. Here in Baltimore I know there are several. Try searching a thebluebook.com in your area for sealants or check the Sikaflex site for local dealers.
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Old 04-13-2010, 10:01 PM   #12
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I have been using the Home Depot Sikaflex on aluminum boats and now use it on the A/S. The grey blends with the aluminum and seems to set up smoother than Vulkem. It has not failed for several years either on the sunnyside of the trailer or underneath. I had to do permanent fix to a jury rig repair on the bellypan and literally had to cut through the Sikaflex I used on the repair to remove them. Be sure to read the tube at HD they also carry construction adhesive and other Sikaflex products on the concrete aisle. Don't know about "Elongation" don't think my wife would like it anyway.
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Old 04-14-2010, 01:23 AM   #13
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I've been using both Vulkem and PL sealant... they appear very similar; both are quite slow in curing. The PL stuff is available at the local hardware store.

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Old 04-14-2010, 09:19 AM   #14
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Thanks

Thank you all for the ideas. I was getting a little frustrated running across prices ranging from 50 to 100+ dollars for a single tube.
Regards,
Ken
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