Posted by Mike Jackson on February 15, 2004
I tried the test panels again today. I made two this time. This one has asphaltum painted into the grooves. That went fairly easy. I was able to remove any excess asphaltum on the chipping area by rubbing a few q-tips dipped in laquer thinner. Worked quite well. The photo above shows me squirting the glue on the letters, without having to worry about glue getting in the grooves. I "domed" the glue on the areas I wanted to chip, knowing the glue is a little thinner coming out of the bottle than if I squeeged it on. By tomorrow afternoon, I should have a chipped piece.
The other panel was done generally as Pat Mackle explained, except this time I used clear enamel receptive vinyl which has more tack than the clear contact paper. I still had some glue go down in the grooves, even though I set it outside for about 30 minutes while I was squirting the glue on the panel above. The glue was just short of frozen. It cut easy enough and peeled off the clear vinyl without a problem. This time I chickened out and peeled the excess vinyl and ran the tip of my x-acto knife down the grooves to weaken or remove the excess glue.
I will be anxious to see the side by side chip of the two variations of the process.
Mike Jackson
Mike Jackson - First Chip Panel #2
Mike Jackson - #3This panel worked fine, but I had some areas of "grainy etched" areas. With the asphaltum still in the grooves, I squirted some additional glue over those areas. It was a toss up whether to just go over selected areas or applying glue over the entire face of each letter. Since this is a test piece, I chose to just go over the problem areas. It will chip by morning.
Mike
Mike Jackson - FINAL #3: This one worked fineHere's the shot of the third panel once I peeled off the clear vinyl. Some glue had made its way into the deeper grooves, so I scraped around the edges with my x-acto knife to remove the glue and basically "break" the strength of the hide glue if any remains. You can see the little remnants of the scrapings in the letters above.
Mike
Robin SharrardThis piece finished chipping today and came out great. It is a modified version of Pat Mackle's process. I had a fairly thick layer of glue on the piece and it all chipped without a lot of grainy etched looking areas.
So, for now, I think I could reproduce this effect on future jobs if needed.
Mike Jackson
Is this the one that you used the enamel receptive clear vinyl on?
Mike Jackson
Yep.
#1:The first one used contact paper trying to follow Pat's technique.
#2: Grooves were painted in with asphltum and I use a squirt bottle. #2 allows for easy double chipping since the asphaltum is still in the grooves. Photo tomorrow.
#3: Above, used enamel receptive vinyl instead of contact paper, but I scraped out all gluethat got into the grooves with it was still wet.
Mike
Larry White
Mike Jackson - Minimal MessMike-
So the #3 panel above was created using the Pat Mackle technique without using any asphaltum?
Having to add and clean the asphaltum would add a considerable amount of time to the job. Seems to me Pat said he was double chipping the pieces, leaving the vinyl on while the glue chipped. ...where's Pat....
Mike JacksonHi Larry,
I have coated entire piece of glass with asphaltum for the other process, and cleaning those pieces can be messy to say the least. On the piece above, you can see that a squirt or two of laquer thinner or good mineral spirits and a paper towel will remove most of the asphaltum. Another quick rub with a clean rag and a the normal final rub down with amonia, and I think it would be ready to go without much mess.
Mike Jackson
Yes, this is a modified version of Pat's method. I just can't keep the glue out of the grooves enough to feel confident. He left his contact paper on the glass during the chip so he could double chip, but I took my clear enamel receptive vinyl off so I could dig out the glue in the grooves. I got a good chip the first time on this particular piece.
All things considered, I'd say both #2 and #3 have about the same amount of man "hours" and both worked for me. It is nice to now know I have two different working methods.
Mike
Denver Chapter of the Letterheads