Latest Best Way to Seal a Backglass?

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Archived from groups: rec.games.pinball (More info?)

Hi Folks,

I've never sealed one before, but had always thought that Krylon Triple
Thick was the preferred method. Someone told me that several coats of
Krylon Crystal Clear might be better. Someone else said they'd been
using brush on polyurethane. So what is the latest theory on the best
way to seal a bg that has some flaking (I have mostly 70's GTB
backglasses). Thanks, Erik
 
Archived from groups: rec.games.pinball (More info?)

Krylon Crystal Clear and Triple Thick are the same thing. Full name is
Krylon Triple Thick Crystal Clear Glaze. I'm about to try it on my
first backlass myself.

Greg

On 17 Jun 2005 21:05:10 -0700, efriis@sprintmail.com wrote:

>Hi Folks,
>
>I've never sealed one before, but had always thought that Krylon Triple
>Thick was the preferred method. Someone told me that several coats of
>Krylon Crystal Clear might be better. Someone else said they'd been
>using brush on polyurethane. So what is the latest theory on the best
>way to seal a bg that has some flaking (I have mostly 70's GTB
>backglasses). Thanks, Erik
 
Archived from groups: rec.games.pinball (More info?)

Umm no, Krylon has two seperate products, Crystal Clear is NOT Triple Thick.
I use it on cabs to smooth out shine but have no idea how it would fair on
bgs. The advantage of Triple Thick is how it lays down, the disadvantage is
some reports of cracking though that seems to be limited mostly to exposure
to very cold temps.

GRY

"Greg O." <gregory.ong@comcast.net> wrote in message
news:eda7b11cdpcakmfjsnica03g88ga65marc@4ax.com...
> Krylon Crystal Clear and Triple Thick are the same thing. Full name is
> Krylon Triple Thick Crystal Clear Glaze. I'm about to try it on my
> first backlass myself.
>
> Greg
>
> On 17 Jun 2005 21:05:10 -0700, efriis@sprintmail.com wrote:
>
>>Hi Folks,
>>
>>I've never sealed one before, but had always thought that Krylon Triple
>>Thick was the preferred method. Someone told me that several coats of
>>Krylon Crystal Clear might be better. Someone else said they'd been
>>using brush on polyurethane. So what is the latest theory on the best
>>way to seal a bg that has some flaking (I have mostly 70's GTB
>>backglasses). Thanks, Erik
>
 
Archived from groups: rec.games.pinball (More info?)

i used a clear coat spray a few years ago on a 1961 (i think) gottlieb
"EGGHEAD" pinball backglas and it near wrecked the damn thing,artwork
started lifting away from glass and almost caused a peeling affect.
it wasnt krylon though have never used that.
have always (except for that one time) just put clear sheet of sticky
plastic that is used for protecting school books,its similar to mylar
but glue is a lot weaker so doesnt seem to pull art away from glass
like a stonger glue may.
i first used this process 10 years ago and havent noticed any negative
reactions as a result.
another good thing with clear contact is you can touch up the backglass
on the contact and if you make a mistake just wipe it off and start
again,
jeff www.pinballswanted.com
 
Archived from groups: rec.games.pinball (More info?)

Danger Will Robinson!

Crystal Clear is NOT the same as Triple Thick.

I've got 2 ruined glasses to prove it!!

I don't know what the difference is, except that Crystal Clear
completely disintegrated a Rocket Ship glass, causing every piece of
loose or flaking paint to peel off and curl right up into tight little
"cigars". Completey demolished it.

Same with a Hang Glider glass.

Don't do it!



efriis@sprintmail.com wrote:
> Hi Folks,
>
> I've never sealed one before, but had always thought that Krylon Triple
> Thick was the preferred method. Someone told me that several coats of
> Krylon Crystal Clear might be better. Someone else said they'd been
> using brush on polyurethane. So what is the latest theory on the best
> way to seal a bg that has some flaking (I have mostly 70's GTB
> backglasses). Thanks, Erik
 
Archived from groups: rec.games.pinball (More info?)

You WILL be sorry!



Greg O. wrote:
> Krylon Crystal Clear and Triple Thick are the same thing. Full name is
> Krylon Triple Thick Crystal Clear Glaze. I'm about to try it on my
> first backlass myself.
>
> Greg
>
> On 17 Jun 2005 21:05:10 -0700, efriis@sprintmail.com wrote:
>
> >Hi Folks,
> >
> >I've never sealed one before, but had always thought that Krylon Triple
> >Thick was the preferred method. Someone told me that several coats of
> >Krylon Crystal Clear might be better. Someone else said they'd been
> >using brush on polyurethane. So what is the latest theory on the best
> >way to seal a bg that has some flaking (I have mostly 70's GTB
> >backglasses). Thanks, Erik
 
Archived from groups: rec.games.pinball (More info?)

The Rocketship fell victim to Krylon Crystal Clear. I still have the
can and the backglass. I was out of Triple Thick, and thought like many
that it was basically the same thing, so I tried it.

Your point about light spray is well taken and correct IMO, and in both
cases product was applied properly with fine light coats. At the very
first contact, the Crystal Clear caused the problem. And it was a very
fine mist, sprayed from 2 to 3' above the glass!

Never had a problem with Triple Thick.

The crystal clear problem had nothing to do with blowing off the paint,
it caused the paint to curl up into tight little "cigars" for lack of a
better metaphor. Had nothing to do with the way it was applied.

I've taken many before and after pics, and have so far seen no ill
effects from Triple Think.



JR Pinball wrote:
> I have two Krylon products here in front of me.
> One is Krylon "Triple-Thick Crystal Clear Glaze"
> (a.k.a. "Triple Thick") No. 0500. The other is
> Krylon "Crystal Clear Acrylic Coating" #1301 Crystal
> Clear. I have used both products on backglasses.
> I originally used the #1301 before discovering or
> perhaps before "Triple Thick" came out. There were
> no adverse effects using this product, but you must
> spray several thin coats to the desired thickness,
> letting each coat dry to the touch. Then, I tried
> "Triple Thick" with mixed results. I think the jury
> is still out on "Triple Thick". Depending on the type
> and degree of backglass damage that is to be arrested,
> "Triple Thick" seems to have somewhat unpredictable
> results. I've seen where it actually seems to expand
> fine cracks and make them look worse than before sealing.
> I have not used "Triple Thick" to seal good backglasses in
> order to preserve them from future peeling and flaking, but
> from what I have seen from others who have done so, this seems
> to be what it does best. You really have to consider the fact
> that each case is unique, and your results will vary. If you
> use a clear acrylic or enamel, I don't think you can do real
> significant damage to any backglass if it is applied properly
> and under normal temperature and humidity.
> DO NOT USE CLEAR LACQUER!!! I've seen what this does to a
> backglass, and it's not pretty! This is what I suspect was used
> on the "Rocket Ship" glass of the previous post.
> JR
 
Archived from groups: rec.games.pinball (More info?)

I fear your sticky plastic solution is a temporary one (and even 20 years is
temporary) that you (or a future owner) will eventually regret. It's like
all of the glasses that have been ruined by people putting clear packing
tape on them -- it doesn't matter if it's low-tack -- it will easily pull
off paint that is failing.

Triple Thick is a proven product, anything else is a risk IMHO, including
any other type of clearcoat and especially any type of adhesive material.

Randy

<jeffiseverywhere@hotmail.com> wrote in message
news:1119098920.053038.277430@g44g2000cwa.googlegroups.com...
>i used a clear coat spray a few years ago on a 1961 (i think) gottlieb
> "EGGHEAD" pinball backglas and it near wrecked the damn thing,artwork
> started lifting away from glass and almost caused a peeling affect.
> it wasnt krylon though have never used that.
> have always (except for that one time) just put clear sheet of sticky
> plastic that is used for protecting school books,its similar to mylar
> but glue is a lot weaker so doesnt seem to pull art away from glass
> like a stonger glue may.
> i first used this process 10 years ago and havent noticed any negative
> reactions as a result.
> another good thing with clear contact is you can touch up the backglass
> on the contact and if you make a mistake just wipe it off and start
> again,
> jeff www.pinballswanted.com
>
 
Archived from groups: rec.games.pinball (More info?)

#1301 Crystal Clear is a graphic arts product in the nature of a clear
final fixative to protect original drawings. It comes from the time
when powerpoint slides were made by hand by graphic artists. It is
particularly useful for encouraging presstype (rub-on transfers) to
stay stuck to a chart instead of coming off when you brush your sleve
against it in a presentation. It is generally sprayed on directly
which will blow away any loose paint chips.

#0500(?) Triple Thick is a craft product intended for things like
sealing the decal you put on a glass so it won't wash off,
encapsulating the pages of a scrapbook, and a lot of other things that
should be written on the can. (I don't have one handy to look at.) It
is generally floated on by spraying above the object and letting the
spary settle.

Don't know if it's a different spray nozzle, or just the diference in
viscosity that makes floating it on possible. Somebody who does a lot
of airbrushing might know.

Jim


On Fri, 17 Jun 2005 22:45:38 -0700, "Ceegary" <ceegary@cox.net> wrote:

>Umm no, Krylon has two seperate products, Crystal Clear is NOT Triple Thick.
>I use it on cabs to smooth out shine but have no idea how it would fair on
>bgs. The advantage of Triple Thick is how it lays down, the disadvantage is
>some reports of cracking though that seems to be limited mostly to exposure
>to very cold temps.
>
>GRY
>
>"Greg O." <gregory.ong@comcast.net> wrote in message
>news:eda7b11cdpcakmfjsnica03g88ga65marc@4ax.com...
>> Krylon Crystal Clear and Triple Thick are the same thing. Full name is
>> Krylon Triple Thick Crystal Clear Glaze. I'm about to try it on my
>> first backlass myself.
>>
>> Greg
>>
>> On 17 Jun 2005 21:05:10 -0700, efriis@sprintmail.com wrote:
>>
>>>Hi Folks,
>>>
>>>I've never sealed one before, but had always thought that Krylon Triple
>>>Thick was the preferred method. Someone told me that several coats of
>>>Krylon Crystal Clear might be better. Someone else said they'd been
>>>using brush on polyurethane. So what is the latest theory on the best
>>>way to seal a bg that has some flaking (I have mostly 70's GTB
>>>backglasses). Thanks, Erik
>>
>
 
Archived from groups: rec.games.pinball (More info?)

I have two Krylon products here in front of me.
One is Krylon "Triple-Thick Crystal Clear Glaze"
(a.k.a. "Triple Thick") No. 0500. The other is
Krylon "Crystal Clear Acrylic Coating" #1301 Crystal
Clear. I have used both products on backglasses.
I originally used the #1301 before discovering or
perhaps before "Triple Thick" came out. There were
no adverse effects using this product, but you must
spray several thin coats to the desired thickness,
letting each coat dry to the touch. Then, I tried
"Triple Thick" with mixed results. I think the jury
is still out on "Triple Thick". Depending on the type
and degree of backglass damage that is to be arrested,
"Triple Thick" seems to have somewhat unpredictable
results. I've seen where it actually seems to expand
fine cracks and make them look worse than before sealing.
I have not used "Triple Thick" to seal good backglasses in
order to preserve them from future peeling and flaking, but
from what I have seen from others who have done so, this seems
to be what it does best. You really have to consider the fact
that each case is unique, and your results will vary. If you
use a clear acrylic or enamel, I don't think you can do real
significant damage to any backglass if it is applied properly
and under normal temperature and humidity.
DO NOT USE CLEAR LACQUER!!! I've seen what this does to a
backglass, and it's not pretty! This is what I suspect was used
on the "Rocket Ship" glass of the previous post.
JR
 
Archived from groups: rec.games.pinball (More info?)

Well, I know this subject will never get cleared up *hah!*, but I can
offer this to the fray.
Krylon crystal clear acrylic reacted TOTALLY different from Krylon
Triple Thick, on two backglasses of mine. Both early Sterns. The CC
seemed to re-flow the silver backing, and in some cases where there was
little "squirm shapes" in the art, it lifted and puckered. God I
almost puked.
Triple thick had no ill effect, and seemed to lay down smoother.
In retrospect, the CC may have been layed down too thick on the first
coat. It however was not near as thick as one good coat of Triple
Thick when I applied that.
As far as cracking of the clear, time will tell. Ive read that most
people use one can of Triple Thick on one glass. That scares me,
because the thickness of paint can actually enhance crackling.
Automotive clear is typically shot in 3 coats. That is not near as
thick as 1 can of triple thick. When you get too much paint on a car,
it will start to "check" and crack.
I cant agree more with the test method. Test test test. I have an old
Genie backglass that is horrid. Im thinking about putting CC on
oneside, and Triple Thick on the other, and just setting it out in the
yard somewhere for a year. Just to see.


Del
 
Archived from groups: rec.games.pinball (More info?)

It works fine. I do not use the Triple Thick,
and have used CC for years now.

As always, test carefully before you use
ANY product for this purpose.

I only use it on otherwise "lost causes", and
not on a "good" glass.

--
Fred
TX
CARGPB#8
******************






"Ceegary" <ceegary@cox.net> wrote in message news:7yOse.1626$Lr4.1234@fed1read03...
> Umm no, Krylon has two seperate products, Crystal Clear is NOT Triple Thick.
> I use it on cabs to smooth out shine but have no idea how it would fair on
> bgs. The advantage of Triple Thick is how it lays down, the disadvantage is
> some reports of cracking though that seems to be limited mostly to exposure
> to very cold temps.
>
> GRY