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Jamestown Distributors(800) 497-0010
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Sikaflex 252 adhesive may be used in place of screws, rivets, welds, and other fasteners. This is a polyurethane adhesive that seals and bonds in one to step to provide high strength elastic bonding. Suitable for a wide range of substrates.
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Sikaflex 252 bonds and seals at the same time, offers excellent gap filling capabilities and compensates for loose tolerances in the building process. Sikaflex 252 exhibits excellent Green Strength and that means reduced clamping time. Some surface preparation is generally recommended for Sikaflex 252. Sikaflex 252 is sandable, paintable and NSF approved for incidental food contact.
Particularly suited for bonding of metal of wood, trim, molding, styling elements, structural bonding of large parts including sheet metal and composites including large panels. Bonding of FRP roofs, sandwich panels and walls. Sealing applications especially for large joints. Replaces rivets and mechanical fasteners.
Wood, primed metal, and composites.
Number Of Parts:
Does this product remain flexible after curing?
Yes, this is one of the strengths to this product.
JD Tech Associate
HiI have a 2007 Chalet A frame trailer.I need to replace the lexan window so can I use sikaflex 252 to bond a lexan window to the fibreglass skin of my Chalet trailer?Thank you
They recommend SIK-295UV for that application.
I'm looking for an adhesive to mount solar panels to a rubber RV roof using "Instapark" solar panel mounts. Will this product work?
That's exactly what I used it for and my panels remain firmly attached after 3 years and 30,000 plus miles. One difference is that my coach roof is solid fiberglass. I used the instapark mounts. Once this polyurethane adhesive cures it really sticks and is very tough. It does take several days to cure.
Yes. Good choice. Terrific product. Depending on the surfaces, especially bare aluminum, it might benefit from a primer. Check the product's information. I've used it successfully for a variety of purposes big and small over the years. Just make sure the surfaces are clean before application.
Does Sikaflex 252 bond aluminium on aluminium?
I'm pretty sure it does bond to aluminum.
hello , im just wondering weather a poly urethane typr glue would be the best for sticking and side mirror back onto the car. any suggestions ?
It is a good construction adhesive. For holding your mirror onto the car you probably want an epoxy (2-part requiring mixing). Be sure it offers good adhesion between metal and plastic, whatever brand you choose.
In which store can you buy this?
I ordered the Sikaflex 252 Polyurethane Adhesive from Jamestown so as to receive new replenished stock.I did not want to end up with tubes that have been sitting around for a year.This is a GREAT product !!
C'mon Jamestown. Can't you answer this one?Don't you know your own inventory?
I don't know which stores sell Sikaflex 252. I found it on-line and ordered from Jamestown Distributers.
Camping world or a rv store
Would this be the right product for re-sealing a skylight on an RV's fiberglass roof? The original seal has broken down and it had staples holding the skylight on as well...was hoping not to have to make more holes in it as it's now brittle. This is a long 2'x4' skylight and the roof props up at a 30* angle when the trailer is open so it won't always be flat. Will Sikaflex 252 be strong enough? Thanks for your help.
I used it on a track on drivers side window on my car as a glue for 3 years now with no problems and another car the same thing for a year
How fast does sikaflex 252 dry?
It only took 2 days, but we let it rest for a week.
Depending on temperature, it takesabout 24 hrs to fuly dry.
What preparation do I need to do before using sika 252 on diamond plates?Sika cleaner activator 205 & sanding would be enough or do I need to also use a primer? Thanks
I have never used 252 on bear metal so do not feel qualified to answer this question-Guy Tomme
Can't help you with that aspect, I use it at Church Camp to stick rocks to a piece of cement board for a senior wall.Just make sure the surface is clean with no oil on the metal.
I have never used 252 on bear metal so do feel qualified to answer this question-Guy Tomme
I'm trying to Mounts Solar Panels to the roof of my M/H I can't drill & bolt them down I order Corner Mounts should I use Sikaflex 252 or 291 or should I use V H B Tape ?? The Panels are about 22 lbs each 26 X 40 Thanks Joe
Have used Sikaflex 252 for tillable Solar Panels to a smooth painted aluminum RV roof. Paint was in good shape. Cleaned and applied Sikaflex 252 with mounting brackets.Panels have withstood 40 mph wind when tilted up.Never had a failure.
I think Sikaflex 252 should work fine for your application. Sikaflex 252 is relatively thick (i.e. does not sag or drip), so you can build a relatively big chunk to hold the mounts down. Because 252 is thick it will need a strong caulk gun like a Newborn. A 5$ caulk gun will simply not work with 252. I have never tried 291 or VHB tape, but guess that in genreal urethanes are better at absorbing vibration than tape.... good luck...
Lord Fusor 123 would would be a better and stronger bond for the heavy panels
If you remove all paint from both surfaces and use 252 I don't think you can tear them apart ever
Great stuff. Great strength.
I have used this to bond sheet steel to sheet steel. It is awesome. I'll use it to bond the panel anchor strips to my Jaguar XKE bonnet. My test strips (after 3 years) are as solid as ever. The Sika 252 is forgiving and easy to work with. It holds paint really well (automotive). Use a high-leverage caulk gun (yes they cost more, but you will thank yourself) and you will have no problems dispensing the Sika.
Ann Arbor, Michigan
Works well. Hard to use.
The product holds well but is hard to squeeze by hand through a caulking gun. So I found it difficult to lay a good bead.
I would buy it if I needed it.
Used this to attach two Renogy Cable Entry Housings to a vertical surface. Company suggested it as the only way to attach the housings. They are firmly attached. I used about 10 milliliters of the adhesive. It would be nice if Sikaflex offered a much smaller quantity.
Moss Landing, California
Exactly what we were looking for and needing. Thank you!
We use this to adhere trim onto exterior of vehicle bodies. Very good bonding agent with little hassel.
Rubber roof surface application Answer
In a word: PROBABLY would work in rubber roof app. Make sure both surfaces to be bonded are clean and dry. This step is often over looked, and is critical. The solar panel supports we bonded to a wood shake roof were later removed to relocate the panels and were done without damaging the supports or the roof. Held up in temperatures on roof of over 130F and high winds of gusts to 50 mph
Indian Wells, CA
Used it for trim on 16-gauge trains I am restoring.
Bonding aluminum to aluminum
Used it to bond aluminum to aluminum on a trailer I was building. Worked great.
local scrap guy wanted empty tubes, for recycling , i like seeing the no waste side of product. that is benifical to future americans ownresourses.