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Glueing to PVC plastics??

Posted: Fri Mar 26, 2010 5:05 am
by brighty
Ok, I'm using some of that clear PVC plastic that get used on the outdoor areas for cafes/pubs etc for a temporary fix for my rear window. Want to glue some velcro to it so I can roll it up when on the tracks but leave it down when in general use.

So basically need a bloody good flexible glue that will stick the velcro to the plastic and not let go. Remember this is only a temporary fix and will be done properly by and upholsterer when I get everything sorted later on.

And before anyone suggests the velcro with sticky backing, don't bother... on those hot days it melts and makes a nice gooey mess where it runs down the window!! :bad-words:

Posted: Fri Mar 26, 2010 8:00 am
by hyzook
How long is temporary? 1 week or 1 year?
Contact adhesive is what you need, apply to both surfaces and let it get tacky then stick, but it wont weather well and exposure and glue quality will dictate how long it holds.

If its the long type of temporary then urethane will work but very messy.

Posted: Fri Mar 26, 2010 9:49 am
by hiluxmad
weld it with a heat gun i have the actual machine to do it but it is basicly a heat gun.

Posted: Fri Mar 26, 2010 10:21 am
by WRXZook
What about silicon, roof and gutter type? might be worth a try? Or if you could get at it you could sew the velcro on.

Posted: Fri Mar 26, 2010 12:33 pm
by brighty
Looking for it to last prob around 6-12mths at the moment, but hopefully less depending when I can get around to doing it properly with an upholsterer.

I have some sikaflex left over I could use, I know it's good and flexible and stickes well, but would it stick well to the pvc?? May have to rough up the surface where the velcro needs to go so it takes to it.

Posted: Sat Mar 27, 2010 12:45 pm
by dumbdunce
small nuts and bolts or small rivets and washers.

Posted: Sun Mar 28, 2010 8:35 pm
by bru21
I would say sikaflex as most other glues are too hippie these days to be any good. The polar groups in PVC means it can be glued with most things.

If the velcro is nylon it can be glued easily but if its PE you will only get a mechanical bond.

cheers bru

Posted: Sun Mar 28, 2010 9:37 pm
by -Scott-
What about that plumber's PVC glue? Have you tried that?

Posted: Mon Mar 29, 2010 4:52 am
by brighty
bru21 wrote:I would say sikaflex as most other glues are too hippie these days to be any good. The polar groups in PVC means it can be glued with most things.

If the velcro is nylon it can be glued easily but if its PE you will only get a mechanical bond.

cheers bru
Tried Sika and no good, appears to bond at first sight but once an edge comes away, pretty much just peels back off the PVC. Hoping it'll last for a few weeks atleast, but not holding my breath. I even tried a peice and roughed it up using a flap disc on the grinder to get a good bond but didnt work either.

Posted: Mon Mar 29, 2010 9:03 am
by bru21
Is is actual sikaflex urathane not the cheaper silacone bsed product. Maybe just pvc glue - although its not uv stable and will fail in time.

Posted: Mon Mar 29, 2010 5:57 pm
by r0ck_m0nkey
Why not just get the velcro that already comes with double sided tape on the back of it. Get the wide stuff so there is more of it there to stick

Posted: Tue Mar 30, 2010 7:45 am
by bazzle
Its prob vinyl not pvc. Go to a pool shop and get liner adhesive.

Bazzle

Posted: Tue Mar 30, 2010 8:28 am
by -Scott-
bazzle wrote:Its prob vinyl not pvc. Go to a pool shop and get liner adhesive.

Bazzle
Isn't the material commonly referred to a "vinyl" simply a form of PVC?

Either way, liner adhesive is a good idea.

Posted: Tue Mar 30, 2010 11:23 am
by Guy
rivit it on .. Will be done in 15 mins and so long as your part way carefull will last well.

Posted: Tue Mar 30, 2010 12:00 pm
by lucy
Easier to use rivetted press studs for the application you want, try asking at Bunnings or Mitre 10.

Posted: Tue Mar 30, 2010 4:25 pm
by moto maniac
Shoe Glue - wouldnt have a clue (HA) whats in it, but bugger me it sticks anything to anything!

just my 2 cents...

Posted: Tue Mar 30, 2010 6:24 pm
by its aford not a nissan