How did you clean the banner before applying the banner vinyl Ewan & did you post heat it at all?

Banner was cleaned with turps and no heat was applied

personally i wouldnt clean with turps
i have isoprop alcohol but this sometimes leaves a residue
best i have used is the avery cleaner use it on all surfaces now with excelent results
also would post heat the text etc on banners on banners

derek

As Derek says, I wouldn't use turps either. Turps will leave a petroleum film on the surface and effectively create a barrier between the vinyl adhesive and the banner material. I've used all sorts of cleaning fluids but always gone back to simply washing them with warm water and Jif (renamed nowadays I think) sponge rinsed off and dried and have never had any problems at all, even on long term jobs. Post heating as well.

Turps is pretty oily so leaves a residue.

Isopropyl or even meths cleans & degreases pretty well.

Heating on shouldn't be necessary but does ensure a superior grab.

I think the turps was your downfall on this occasion.

Dave

Thanks all, time to change the cleaning fluid. Can't remembe where or who but I was told that turps was the best thing to use.
Ah well, still learning

I would never use turps /white spirit for reasons stated above. I use either glue and tar remover (make sure it had dried thoroughly ) or meths.
Alan D

I would never use turps, use rapid prep or Avery surface cleaner and you won't have any problems.

Have now changed to meths

It could be the vinyl itself, but I agree, never use an oil solvent like turps to clean the surface.
Plasticizer Migration can cause vinyl graphics to peel off too. Not all vinyl fabrics are suitable for sign work. Plasticizers are used to keep the material soft and flexible. If there is an excess of it in the material, it may migrate to the surface and slough off along with the lettering. Here's a detailed description of the condition.
http://www.flex-europa.com/products_plasticizer.htm

As above I never use turps or white spirit for cleaning (other than when I spell something wrong while painting a sign!!)

I used meths for years but even that leaves a slight residue so now we use Avery or Image Perfect surface cleaner.

Meths doesn't taste good either

We always use, in the following order, for every job:

1 Water with detergent

2 Prepsol, (Also known as Prepwash, Autoclean, Solwash)

3 Isopropyl alcohol.

We have never yet had a failure due to grease or dirt.

All the above are available cheaply in bulk.

Simon.

I agree with the others, I think your downfall was the turps!
Completely scrap using that for anything connected to your vinyl work mate.

Isopropyl alcohol or Industrial Meths is what i prefer to use.
dont buy from the likes of B&Q though, buy it from a Janitorial / Cleaning Chemicals type supplier. You will buy it in 25litre drums which will last you months and only cost about £30ish

Buying from local stories will cost you about £10 for a small hand size bottle.
Industrial Meths is Clear, domestic is purple. dont buy the domestic stuff, the purple in it can dye certain surfaces, including resprayed vehicles. i have that T-shirt from many moons ago.

Be careful buying either ISO or Meths thats clear, make sure you have a sealed container as you maybe buying watered down bottles, which is not uncommon. you can tell if it doesnt remove the likes of pen ink on first swipe, or if the fluid beads on the surface rather than evaporates very fast.

There are ways the vinyl can fail simply by the way the customer treats the banner. if the banner is folded rather than "rolled". this can create dog-earing of the vinyl, creases and so on.

also, you cannot roll it tight. loose or around an old card vinyl core tube.

You MUST roll the banner with the vinyl facing out, not inwards as again this can cause the vinyl to come off.

apply with a nylon squeegee rather than felt.

heat promotes adhesion also, but dont overheat one area or you can create gloss patches on the banner.

if you banner is stiched, dont cross the stitching with vinyl. to be honest if you do your too close to the edge with vinyl anyway.

Found a place that sells it and there was this message........

IMPORTANT

You will need to register your interest in this product with HM Revenue and Customs before we can supply you. Please call them on 0845 010 9000 and they will send you a registration letter. It does not take long and HM Customs and Excise are normally really helpful. They normally refer to this product as 'IDA' or 'Industrial Denatured Alcohol'.

I use to buy IPA from Alpha Chemicals Ewan, I say use to because I haven't bought any for a couple of years now. 25 ltrs lasts a long time when you only work part time lol.
Think they are based in Denny, 01324 824181

Don't know if those details are up to date but you should find them with a search.

http://www.shinyhardware.co.uk/prods/sh ... p?cid=3563

good for Isopropanol

Nice one thanks, Just ordered very reasonable.

yep +1 for the shiny people

shiny for me too, great price

Next time you order Martin you should ask for commission lol.

A guy who helped me wrap some vans the other week told me about them.



A lot of 'Shiny Happy People'.....

+ 1 more here Cheers Martin

http://www.bonnymans.co.uk/products/pro ... ticleID=-1

WE buy it is 205 litre drums from here about £175 I seem to remember