Sikaflex Pro Sandable

[Maximina]

Whenspeed is important! Sikaflex-291 is used by many marine pros and DIY'ers for its fast cure time and excellent adhesion. Want to use above and below water? No problem. The marine adhesive and sealant provides excellent adhesion, fast strength build-up, and is paintable and sandable. Use what the pros use! Wherever you are, Go With Sika Marine

Sikaflex-291 is generally resistant to fresh water, seawater, diluted acids and diluted caustic solutions; temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils; not resistant to organic acids, glycolic alcohol, concentrated mineral acids and caustic solutions or solvents.

Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. Suggestions for surface preparation may be found on the current edition of the appropriate Sika Pre-treatment Chart. Consider that these suggestions are based on experience and have in any case to be verified by tests on original substrates.

Tooling and finishing must be carried out within the skin time of the product. It is recommended using Sika Slick. Other finishing agents must be tested for suitability and compatibility prior the use.

Uncured Sikaflex-291 can be removed from tools and equipment with Sika Remover-208 or another suitable solvent. Once cured, the material can only be removed mechanically. Hands and exposed skin have to be washed immediately using a suitable industrial hand cleaner and water.

Sikaflex-291 can be best painted after formation of a skin. Painting could be improved by treating the joint surface with Sika Aktivator-100 or Sika Aktivator-205 prior to paint process. If the paint requires a baking process (> 80 C), best performance is achieved by allowing the sealant to fully cure first. All paints have to be tested by carrying preliminary trials under manufacturing conditions.

Sika Sikaflex-295 UV Polyurethane Marine Sealant Black is a one component, moisture-curing, UV-resistant adhesive and sealant used for bonding polycarbonate windows and acrylic (PMMA) windows. It is fast curing, stable, non-yellowing, non-chalking, and has good gap filling properties. It is resistant to salt water, paintable, and sandable. 300 mL Cartridge.

Tidying and painting around the engine bay, most of the seam sealer has long since fallen out or gone so hard I had to chisel bits of it out. Bought some Sikaflex Auto sealer which listed as seam sealant and it just seems the same as any silicon sealant to me. When it dries its just has a flexible rubbery feel to it. This sealant is supposed to go around the lip in front of the plenum chamber and up to the bonnet hinges. But this is the area that is really prone to rust and its this area where water would get trapped under the sealant and rust even faster. They say you can sand it and paint over it but its just like flexible silicon once dried, you couldnt really sand it like a filler and if you paint over it and pressed it wit your fingers wouldnt the paint just split? I dont remember the original stuff being this soft back when the car was relatively new but then again I didnt go pressing into it to see if it was soft or not. Anyways do most of you just replace the rubbery seam sealer with the same or do you mould some metal filler into there instead? Or is there some kind of seam sealer thats harder and sandable but flexible enough not to crack in these positions?

The stuff you used sounds about right as to regards of what you get when asking for seam sealer. I have used Tiger Seal and another very simular no name brand and they are both as you describe. They are supposed to be flexible so the paint doesnt crack when the body flexes at that joint. It does paint over just fine but I have to admit I dont go prodding at it afterwards

Always ask someone (such as a professional) who is doing the work on a daily basis, who knows what is good, and what the latest trends are, and exactly why they are doing it that way......unless you like all the pain and suffering and continual trauma of making continual mistakes and reworking while you are learning.

Got up early this morning as its due to be above 40 degrees C later in the day so I wanted to put this seam sealer on while the temp was nice but what I thought was going to be a simple apply and wipe job proved to be a tacky nightmare. I really made a mess of it! I certainly hope this stuff is sandable like they claim because I have alot of smoothing out to do! You have to admire these people with skill that can get this done in a minute or two and the job is as neat as a pin. If I had to do the job again I would do it in two stages. One to fill in the gaps and then let that dry then apply another think layer just to smooth everything out.

Hi Folks, I am putting my caravan back together. The friend helping me is long gone and I am not waiting for their return...lol. long story. ha. Anyway... I am only seeking to weather proof the caravan until I can paint it properly. Until then I am wanting to know what glue or sealant is good for under these tracks? Pop rivets run along the top so somthing must be used... Also please... the previous glue or whatever it is. I have scrapped most of it off. Do I need to get %100 off? It is very stubborn and i would just as soon glue and pop rivet over it.

It was the only Sikaflex product availabe in my local Bunnings, which was an adhesive type sealant, which was suitable for exterior use. It says in the product details, that it is sandable and paintable.

Sika Sikaflex 295UV is a one-component, polyurethane adhesive sealant that is specially formulated for the bonding of acrylic and polycarbonate marine windows and hatches. Additionally, Sikaflex 295UV polyurethane is intended to be used as a sealant in open joints between glass, ceramics, metals, many plastics, fiberglass and many variations of paint. Sikaflex 295UV is also an excellent color stable, non-chalking sealant designed for general marine sealing, is UV resistant, doesn't crack or chalk up, is salt water-resistant, quickly becomes tack-free is paintable and sandable, stable, bonds and seals in one step, has initial load bearing capacity, has high thixotropy/good gap filling properties and is non yellowing. Sikaflex 295 UV is resistant to fresh water, seawater, aqueous, chlorine-free cleaning solutions and sewage effluent as well as diluted acids and caustic solutions; temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils; not resistant to organic acids, alcohol, concentrated mineral acids, caustic solutions or paint thinners. The above information is offered for general guidance only.

Sikaflex 221 is the most well-known brand of polyurethane sealant/adhesives. This fast curing product provides permanent adhesion to surfaces with excellent cut and tear resistance. Sikaflex 221 is weather resistant, sandable, paintable and NSF approved for potable water and incidental food contact.

Sikaflex PRO is one of the most versatile sealants on the market! You can use i t to seal around your concrete stairs or concrete, between your bricks as a sealant against draughts, or between concrete panels in your driveway. Its paintable, sandable and wont shrink unlike a lot of fillers, meaning you will do the job right the first time, everytime with Sika!

Sikaflex-AUTO+ is used as a higher strength general purpose adhesive sealant in your car, perfect for everything from adhering internal door panels to the frame of the door, to sealing around your engine block. You can also use it to attach a body kit to the frame of the car for a more unique look in your vehicle!

Hi Chris. Thanks for contacting Sika with your enquiry. We need to know a little more before we can help you out. How did you apply the Sikaflex Pro (with a caulking gun, even pressure, what temperature etc), on what kind of substrate, and if it will be in contact with the swimming pool water etc. You can email us at au.mar...@au.sika.com and we can help you from there!

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