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Sikaflex 295 UV Resistant Marine Sealant Adhesive

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Sikaflex 295 UV

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Product Details

Sikaflex 295 UV is a fast-curing marine adhesive ideal for bonding windows or sealing open joints and deck seams. This marine-grade sealer is compatible with polycarbonate, acrylic, glass, ceramics, fiberglass, metals, as well as many types of plastics and paints. With a 1-component formula, the polyurethane adhesive provides a strong adhesion that resists damage from UV rays and salt water. No chalking, cracking, or yellowing over time.

This 1 part polyurethane sealant air cures to a durable elastomer to bond and seal at the same time. It is suitable for all types of organic (PC, PMMA) window panes. 295UV also provides superior UV and weathering resistance to withstand most marine conditions. Use with Sika primer 209.

Tech Specs
ColorsBlack, White
Tack-free time*60 Minutes
Elongation at break (DIN 53504) 700%
Tensile strength (ISO 37)290 psi
Application temperature+50 F to +95 F (+10 C to +35 C)
Service temperature (continuous)-40 F to +195 F (-40 C to +90 C)
Service temperature short term (>4 hrs)250 F (+120 C)
Shelf life12 months
Application methodHand- or air- gun
*=at 23 C and 50% relative humidity
Info & Guides

Technical Information

SikaFlex 295i UV Features and Benefits

  • Low VOC
  • No added solvents
  • Excellent UV and weathering resistance
  • Suitable for organic glass like PC or PMMA
  • OEM approved
  • Easy workability
  • Resistant to seawater and fresh water
  • Silicone free
  • Wheelmark certified
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Reviews

Rating Snapshot

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9 reviews with 5 stars.
7 reviews with 4 stars.
0 reviews with 3 stars.
0 reviews with 2 stars.
1 review with 1 star.

Overall Rating

4.4

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Filter Reviews

1 to 10 of 17 Reviews
1 – 10 of 17 Reviews
Atl Ga
5 out of 5 stars.

Works as advertised

11 months ago
Used for lexan to deck attachment at the dorade vents. So far so good
Helpful?
Nederland, CO
5 out of 5 stars.

Hard-to-find product, fast delivery

a year ago
We knew what we wanted - Sikaflex 295 UV. But finding it in Colorado was nearly impossible. Many dealers carry the Sikaflex brand, and some unknowledgeable sales folks tried to tell us their product was the same as what we wanted. NOT! My husband has experience in the Tall Ship industry, as is well acquainted with Sikaflex 295 UV - there is no substitute! Fortunately, Jamestown Distributors had our product in stock. They sold it for a great price, and shipping was speedy. We could not be more pleased with the service and the product. Thank you, Jamestown Distributors!
Helpful?
Rochester, NY
5 out of 5 stars.

My goto for hatch lens replacements

4 years ago
Never had a problem, it certainly out lasts the actual lens.
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Lawson, Missouri
5 out of 5 stars.

Sikaflex Caulk - Top shelf stuff!

5 years ago
First I would say that I struggled with the cost of this stuff. You can buy exterior caulk that is UV resistant at the local box store for about 1/3 the price. I actually did get some and did some testing in order to compare before I ordered more since I didn't order enough to start with. I used this caulk as a deck seam compound. My deck is made of western red cedar, not teak but has the same sort of look. The Sika is a superior product to anything else that I tried. I tested some DAP and 3 M. Both the DAP and 3 M cured faster but seemed to shrink down in the seams whereby in comparison, the Sikaflex took a bit longer to cure, gave off more of an odor but then maintained it's fullness in the seam.
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Salem Ma
5 out of 5 stars.

This is the best caulkimng for setting exterior windows with

6 years ago
Thanks for the free shipping on the last order. Another comim ng soon
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Yorktown, VA
4 out of 5 stars.

I will use Sikaflex 295 again for sure.

6 years ago
Product was great but Jamestown Distributors failed to send me the screw on dispensing tubes (as pictured) the last couple of times I ordered this product from them. This is a problem because no one around me sells just the screw on tubes for this or similar products.
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Florida and RI
1 out of 5 stars.

Sikaflev 295 FAILURE!

9 years ago
The UV designation is a joke. They recommend that a UV tape is used to shield the uv rays from destroying the primer bond to the glazing. Also after only 2 years the windows started popping put after a trip to Bermuda and the other vessel cruising offshore East coast to the Keys. The Sikaflex system was used on a Dean and an Outremer catamaran. Both boats had catastrophic failure of the seal.
Helpful?
INGLIS, FL
4 out of 5 stars.

Great Product

10 years ago
Expensive, messy. Watch vises on utube first. Use thin gloves, lots of thinner and plenty of tape to pull off excess
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San Jose del Cabo
4 out of 5 stars.

Good product

11 years ago
I used the product to repair some swimming pool slate that kept falling off. The product was used to seal the top of the slate to the wall of the pool.
Helpful?
Little River, SC
4 out of 5 stars.

Mask off area well

12 years ago
This stuff is thick. I used a cheap caulking gun and my hands really got a workout squuezing the stuff out. Get a good caulking gun!
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1 – 10 of 17 Reviews

Questions

1 - 10 of 32 Questions

Q: Can this be varnished over?

a year ago
1 Answer

A: Yes but it is more flexible than the varnish so it will need to be recoated regularly.

a year ago
Helpful?

Q: What is the best choice for a sealant for replacing a polycarbonate hatch lense in a Lewmar aluminum frame? Does Sika295 uv need a primer or activator? If it does, the price for both 295 and primer seems high. Do you or Sika have a video of how to apply the sealant?

4 years ago
1 Answer

A: Hey Dick, I would skip the Sikaflex for your application, it's to costly and complicated for what you are doing. Go to aircraft spruce and order a pro-seal 890 B1/2 and an applicator tip, it's a little spendy but way less money for what you need to do.

4 years ago
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Q: I have an older Catalina 30 and the windows tend to leak. I have tried several solutions(Flex Seal Tape was a disaster) but the problem persists. Now I guess I would just like to caulk where the fiberglass meets the aluminum frame. What product do you recommend?

4 years ago
5 Answers

A: Michael 1st where is it leaking at the fiberglass/frame interface or at frame/plexiglass ? The Sika 295 should work for either just do your self a favor go to Sika web site they have a whole thing on proper application which if you need to follow for this to work properly Arden

4 years ago
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Q: can you use this between wood and fiberglass as an adhesive?

6 years ago
3 Answers

A: Chris Johnson I would not recommend using the SIKAflex 295 UV as an adhesive between wood and fiberglass. It is more specifically formulated to bed acrylic windows into fiberglass. If you are buying something specific for adhering I would look at SIKAflex 221 or 252. I have used both quite extensively. I specifically used the 252 to bed structural bulkheads to fiberglass hulls and that has worked out really well. Both products have great adhesion/sealing but 252 is stronger.

6 years ago
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Q: Can 295-UV be used to bond polycarb to varnished wood window frames? (I read about bare wood and painted surfaces, but no info on varnished substrate) Thanks

6 years ago
4 Answers

A: This may depend on the varnish. You may want to reach out to Sika directly with your specific type of varnish, so they can verify.

6 years ago
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Q: Can I use the Sika 295 UV for frameless bonding? I have 1/2"" thick poly-carbonate windows 11"" x 26"" and I want to install them without having to screw them down. I've got an inset epoxy flange so the windows will be flush after mounting. I want the right sealer adhesive to install the windows with no screws or frames. Thanks, Chris

7 years ago
1 Answer

A: You can use Sik 295 UV and may need a primer/cleaner to ensure a good bond.

7 years ago
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Q: is this what I need to seal polycarbonate to untreated wood? This is a greenhouse.

8 years ago
1 Answer

A: Yes, that should work well.

8 years ago
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Q: I need to run a bead of something along the underside of my Teak rail to keep water outta the boat. NOT to bond the rail to the boat, its already been there 34 years. Several years ago I used 5200 but it didn't hold up well in the Sun. My boat is in S Fla. I'm scraping that old stuff off with the back side of a chisel. Sikaflex was recommend by someone here in St.Pete. What is all ya'll opinion? Which one to use?

8 years ago
6 Answers

A: My friends & I agree that 5200 is an Alien life form that can move through space & time. Thanks.

8 years ago
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Q: what sikaflex to use when sealing wooden boat decks ?

8 years ago
2 Answers

A: One of the best products on the market.

8 years ago
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Q: What varnish has anybody used to apply over the top of this?

9 years ago
3 Answers

A: I applied Interlux Urethane (Brightside) over the top of it. It took forever to dry. After six months, it seeems like the paint still isn't dry.

9 years ago
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1 - 10 of 32 Questions
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