Sika flex or something? Externally

MaryJane · Senior Member

Sika flex or something? Externally

Cloak · Guru

silicone.co.uk/markets/aerospace/

Might be a starting point for you...

I could look it up for you but my consulting rates are $200 / hr min 4 hrs + expenses...

Cheers big ears.

Dougwe · Chief one feather

Silicone is great MJ but I used Sika Flex to seal around a sun roof externally and found it great. I didn't want to open the roof anymore as I didn't like it and it leaked so used SF. It sealed and acted like a glue no problem at all. Don't have that car anymore.

I wouldn't hesitate using externally again. I am not sure if it comes in clear though. I only saw black.

Edit........and I tell you that for free biggrin biggrin

Cloak, my rates are normally similar but based on two hours (Grey Nomad working hours 10.00am - 12.00pm.

-- Edited by Dougwe on Thursday 25th of September 2014 04:35:15 AM

Peter_n_Margaret · Guru

"Sikaflex Pro" is the best sealer.
Comes in black, white, grey and probably other colours too.
In 300ml tubes or the larger (and cheaper) sausages.

Cheers,
Peter

jules47 · The Happy Helper

Guy from a caravan place we went to says "roof and gutter" is good, because it is flexible as well - been on where he put it about a year now, still sticking there - bit discoloured from red dirt, but so is the rest of the motorhome!!

in transit · Senior Member

We used Sikaflex around boat windows, vents etc, and got a few years out of it in Nth QLD. The stuff we used was expensive compared with the normal hardware lines (probably Pro as mentioned above). The trick was not to use it too generously if you want a good neat job.

dING · Senior Member

Used sika flex cant remember which number

To stick the solar panels on the roof of my

Land rover tis amazing stuff but be bloody

Hard to remove I reckon

Cloak · Guru

Always someone who undercuts.... darn it.

MaryJane · Senior Member

Cloak wrote:
silicone.co.uk/markets/aerospace/

Might be a starting point for you...

I could look it up for you but my consulting rates are $200 / hr min 4 hrs + expenses...

Cheers big ears.

Ummmm, no wonder you want $200ph, couldn't find sealant on that site, just extrusions, cables etc biggrin But al least I can go build an airplane now!

MaryJane · Senior Member

Thanks for all the advice. I had forgotten what I'd used before, but it was SF Pro, that was what I used around the toilet, but it's leaving the walls again, slowly. I reckon I'll get some of the roof and gutter, thanks Jules for that tip.

Phil C · Guru

Gee Cloak, you sell yourself way too cheap.... confuse

I take 10 bux for every year of my life per hour. That way I dont get any work and can sit on my date in this forum.

Love ya gutz rubber n**s

Cloak · Guru

Phil you might remember some of the rubber stuff we used on aircraft. Best stuff ever I don't know why they keep selling that other junk.

A few years back I picked up a ringing phone in the office for the battery guy (Panasonic) The bloke on the phone was a big wheel in a global company
wanting to sue us over our sh1t lead acid batteries. He went on to tell me how the battery connectors kept corroding off causing a massive warranty run
on their electric start lawn mowers.

When he stopped telling me how rubbish we were I asked him if they used any silicon rubber in that area and bingo yes they did. I reminded him that this
stuff is acidic when curing thus the corrosion and to go use the aviation grade rubber compounds. Never heard back from them and they kept buying our batteries.

In fact I built a voltage regulator and potted the electronics in aviation approved rubber over 30 years ago and it's still like new.

Cheers.

Phil C · Guru

Yeah Cloak, we had the same issue with the HEIU on the Macchis at 2FTS. Every bay service the copper protection inside would come back corroded to billio. Found out the silastic we used was acidic set. Went to the new neutral set and the problem went away.

I agree on the jolly brown framie goop, probably carcinogenic and all bad stuff but it worked a treat, there is a big storm about F111 fuel tank goop, seems it killed a few framies in later life, not good.

Easy fix with the lawn mower guy is a jar of petroleum jelly! I was with British Aerospace a while back and they used a clear, rubberised, con-formal coating on the FA18 HUD printed circuit boards, this stuff is gold. Forgotten the name but sure wasnt silastic.

Took a peek at this sikaflex at bunnings (expensive) seems its a polymer based glue come sealant and they push hard on the flexibility angle might invest in a tube.

Cheers mate, hope you are well, take care.

mr glassies · Guru

i use sia 291 its for marine but use it on everything . only thing it don't stick is glad wrap lexon and my water tanks on the new truck they have oil in the plastic and it comes of . dibs

mr glassies · Guru

i use sika 291 its for marine but use it on everything . only thing it don't stick is glad wrap lexon and my water tanks on the new truck they have oil in the plastic and it comes of . dibs

Bryan · Guru

To get the best results you need to use the cleaning fluid recommended by Sikaflex to clean the area for a good bond.

I got all the info & specs etc on their website.

MaryJane · Senior Member

Thanks all for the feed back. In the interim I've discovered Sikaflex have an app. Yep. It's called Sika products. It's now on my ipad.

At the caravan show recently I noticed some really average jobs on brand new vans...... just saying biggrin bleh

Mark Bolton · Veteran Member

Cloak wrote:
Phil you might remember some of the rubber stuff we used on aircraft. Best stuff ever I don't know why they keep selling that other junk.

.........

Pro Seal ? It is a two part about 8:1 ... It is for sealing wet wing fuel tanks. Awedome stuff.. I once used it to repair a corroded hot spot in a carburettor.

Knowledge speaks, but wisdom listens.

Knowledge speaks, but wisdom listens.

Knowledge speaks, but wisdom listens.