Black frame finish under glass

[Chris_h]

I often frame using black mouldings and will find once I have the frame sealed I suddenly notice lots of tiny bits from the black finish have got under the glass. Before I seal the frame it was spotless. At first I thought this may be from the glass scratching against the black finish around the rebate, however I noticed a few bits of small flaky black paint around the edges where the rigid points had been fired in so assume it could be from this.

Is this a common problem and are there any ways around this apart from sealing between the glass and the mount?

I will try and attach a photo to show the problem.

Any help would be greatly appreciated.

[Chris_h]

Here is a quick image from my phone.

[IFGL]

You could try sealing your sandwich (taping your glass and backing together ) before fitting , or try Roboframers little trick of painting a thinned down layer of pva glue around the rebate.

Personally I get someone else to do it, because it drives me mad.

[GeoSpectrum]

That may be the glass shaving little bits off the inside of the rebate when fitting. Sealing the sandwich should do it or smoothing the edges of the glass with a diamond impregnated pad (Lion sell them) should also help.

How tight a fit are you making the glass? There should be a bit of play between the glass and the inside of the rebate.

[stcstc]

what i do is

i brush the rebate with a stiff paintbrush, then blow with the anti static airgun, tends to get rid of most of the loose bits

dont often have issues now because of it

[GeoSpectrum]

Anti static air gun? I want one of those! Where can I get one?

[CanvasChris]

Easiest way to eliminate is to tape the glass & mount.... stops any insects too

[stcstc]

http://www.fraser-antistatic.co.uk/our- ... sed-airgun

its not cheap cost me about 900 with the ionising powersupply


but man it rocks

great when you laminating or mounting too

[Roboframer]

From this topic ....

http://theframersforum.com/viewtopic.php?f=6&t=4731

"You can't beat the flumb pervert; your only chance is to join him - by deliberately leaving at least two extremely skillfully placed flumbs inside each frame - there's even more chance of him leaving you alone if you advertise this fact and offer money or a discount for anyone that can find them within one hour - a bit like 'Where's Wally'

Walking backwards around your workshop three times, naked; chanting "Ég elska flumb öfuguggi" ("I Love the flumb pervert" in Icelandic) whilst throwing glitter about appeases him for about 7 hours. A ritual sacrifice of a Dyson appeases him for a whole month - but the daily walking backwards thing is much cheaper and no real bother."

[Chris_h]

Thanks for all your replies. The gap I am leaving is about1.5 to 2mm. A lot of the glass I am using is pre cut and already nice and smooth. I have checked a few of the frames out where I had problems as I suspected this was the issue. But there does not seem any evidence of any scratching or marks from the glass on the rebate.

I normally clean the rebate with a soft brush so maybe I will have to try a harder brush. From looking at the small flakes of paint that seem to come off around the tabs I assumed this may be where it is coming from as the points break the black finish up as they are inserted.

I like the idea of sealing the sandwich but have had rotten luck with this so far. I find it really fiddly to get the tape in the correct place and when I do get it to what I think is correct then you can end up seeing the tape on the other side. I might not be using the best tape this though so maybe I will have to try and master this a bit better.

The tape I have been using is p7-70.

Chris

[David McCormack]

Try Filmoplast P90 instead of PH7-70, much nicer for making sandwiches, yum

[Chris_h]

Thanks for you all for your help, I will pop some P90 on my next order and give sealing the sandwich another go.

I placed some white paper on the lip of the moulding and then fired the points in to see if this was the problem and it appears to be. If I cant get on with sealing the sandwich maybe I will have to just be more selective with the mouldings I choose as it's only the ones where the finish is also on the rebate area that is causing me the problems.

Chris

[prospero]

This is why I have always sealed the sandwich prior to assembly. It makes it easier to handle than if it were all flapping about. The problem is suction. You can handle glass/mat/back without it separating slightly around the edges. This causes a huge inrush of air which pulls in any stray bits in the vicinity. It also stops creepy-crawlies getting in.