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Sika 209D primer is used to prime painted surfaces and plastic substrates prior to bonding with Sikaflex adhesives. This low viscosity, black pigmented liquid dries when exposed to the air (specifically, reaction with atmospheric moisture). Formerly known as Sika 209N. 1/2 pint.
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Areas of Application
Sika Primer-209D is suitable for application to the following substrates:
Plastics Acrylic (PMMA)
Polycarbonate ABS, etc.
Because paints and plastics vary so much in their chemical composition, preliminary trials are necessary. Always seek the manufacturer's advice before using the primer on plastics that are prone to stress cracking, such as acrylics, polycarbonates or ABS.
: 8.3 lbs per gal
: Very Good
: Moisture Curing
: 25 F
: Store in a cool, dry place
: 40 F to 110 F
Service Temperature (Continuous)
: -40 F to 190 F
: 30 min at 73 F/50% RH
I don't see the small "stick" style 209 listed. Do you still carry that?
If you are looking for what's in the attached picture, it's not a stick. More like a little aluminum bottle.
do you have to use 209d when bonding acrylic windows to wood and epoxy ?
Yes, fiberglass, wood, or plastic. It is used prior to applying Sikaflex 295. The product has a short shelf life also.
Well, it worked great for us, but we were bonding acrylic to aluminum. No experience with using it on wood or epoxy, but i would think Sika would address that on their web site.
Frankly I have no clue. I used this product to bond a plexiglas canopy to my aircraft's 2024 alloy aluminum structure. I didn't attempt the application you describe, but it's working great on my aircraft. Good luck!
Sorry, I have only used the product to bond acrylic to aluminum however, I suspect it may have an equal effect on the acrylic as to any other material. I'd use it regardless of the materials if for no other reason than I don't want to do it over.
The primer(209d) works extremely well. I have some small spots of primer in the middle of my porthole,is there any cleaner I can use now that the material has had all winyer to cure? thanks ken
I used isopropyl alcohol. However, that was only after a day or so of cure.
open time on the 209D primer ?
I'm not sure if I am answering the question being asked, but here goes:By "open time" I assume you mean the working time before the solvents evaporate and the application swab starts to drag as the primer dries. I would describe it as very fast - one pass only and have everything masked off and ready to go before you start. This was under my particular conditions or temperature and humidity; other conditions may yield longer working times.I used this as part of the process of adhering new ports to my sailboat and it worked beautifully. I used only Sika adhesive and primer - no mechanical fastenings.I hope this helps. Dave
It says on the bottle, either 1 or 2 hours, I forget which.Mike
is this primer a 1 part primer? and why are they no instruction on the bottle?
thank you GARY.
Yes, it is a 1-part primer. It is very volatile, so needs good ventilation.You paint it on, wait 20 minutes, then proceed with the SikaFlex. The primer, once opened, has a shelf life of about 2 weeks at most -- it begins to harden in the can.I did a test: I took a 1/4 inch thick piece of plexiglas, about 3/4 inch wide and about 3 inches long, and a piece of 1/8 inch thick aluminum, about 3/4 inch wide. I put the primer on both pieces, waited 20 minutes, then used the black Sika Flex to glue them together with about 1/32 inch thick of Sika Flex between, waited a week, then tried to pull them apart -- impossible. I then put the aluminum in a heavy vice, and used a large channel lock to twist the plixiglas piece, thus applying pure shear force on the SikaFlex -- the primer held tenaciously to both sides-- the SikaFlex itself sheared, but it took very excessive force to shear it. Good stuff.
I used it several years ago to prime and silkscreen the black opaque areas on acrylic port windows on my sailboat before I sealed it to the fiberglass.. Its one part and black and I brushed it on the areas I cut away the protection paper from with a razor knife. I recall it drying quiclkly and doing 2 coats. I found the instructions online at the Sika site. Hope this help.
It is a base primer. It is what makes the bond to the base in my case fiberglass. I used it to install new windows on mt boat without screws. You can go to the Sikaflex web site and get all the spects. They say it can be strecheded like major times it resting state and not break it's bond. The first set of windows have been in six years and ( knock on wood) all is good so far. You just need to shield from the sun best you can. I painted over it like they suggest and it has had now leaks so far. I sleep under them every night. We are in the DR right out for the next couple of years we hope. This is our eighth year living aboard and starting our second year full time cursing.Gary
Yes its one part, stir and apply, caution, if you are useing SIKA FLEX to install cabin windows and such use enough and spread it as you would a paint as thie will be visible through the G glass when completed
There is a cleaner product that should be used to prepare the surface for the primer.Clean and scuff the surface that is to receive the primer. Apply the cleaner product and let dry. Apply the primer and let dry.At least that is how I remember it.JP
It is a one part primer. First I used the SikaCleaner 226Then I applied the SikaPrimer 209Then without delay I used the Sikaflex295 UV Black There is a max time allowed between the primer and the 295. I found the instructions at the Sikaflex web site and in other places also using Google.
It is a one part primer and I think the instructions are on the adhesive part of the system. It has been a while since I have used it. Scott
The Primer is simply shaken well, then applied directly to the clean surface you wish to bond. If you are looking for instructions on its use, I beleive you can find them on Sika's website or simply call Jamestown and perhaps they can point you to a place on their website that would have the directions for usage.
Disappointed with Jamestown
I purchased this 209 Primer and it was shipped to me on 5/16/17, it expires at the end of July. It is close to $90 a bottle and I used very little of it. How about Sika providing smaller amounts, or Jamestown and other distributors prorating the price depending on shelf life? It has a 9 month shelf life, but, I was down to 2.5 months when I got it.
WAY too much for a boat owner to do two windows
Product seemed fine but as with the activator, there was WAY too much. I had two windows to do on my boat. I think the can I paid over $50 for could have done a couple hundred at least. Plus, the same cost and amount of overrun on the activator made this almost a $200 project to rebed two deadlight windows on a sailboat. Ridiculous. Plus, one of them came with a "best used by date" that was only 45 days away. Kind of makes a tube of silicone look a lot better.
Had good success in fitting hatch lens
The manufacturer has a good write up on how to use this product. It worked as advertised with no leaks now for 4 years. My only complaint is that the 1 part primer is expensive and has a short shelf life, so you use what you need and throw the rest away. In my case, the two Bomar hatches I fixed used about 5% of the primer so most of it was discarded.
Great Stuff for new hatch replacement
Great stuff however it has a shelf life and the volumn is all or nothing.... Too much for small jobs yet necessary for the installation process.