Jovan Djokic
05-15-2017, 2:11 AM
Hi all.
I use various laser plastics for engraving name badges (IPI, Rowmark, Trolase etc.) and I'm having some issues with bubbles sometimes (not always) appearing on the badges when I leave them to dry overnight.
I use a 2-composite resin that is applied to the badges through a doming gun (so the mixture is evenly mixed and spread). After I apply, I check for bubbles, remove any with a lighter and once I'm sure there are no bubbles I cover the domed badges with a plastic box/lid and leave them to dry and harden. In the morning when I inspect them, I sometimes get badges that have overnight developed a large number of tiny bubble on the surface of the badge and even on occassion a badge may have a whole eruption of bubbles on the surface as seen on the attached photo.
Why does this happen, considering I check and make sure there are no bubbles at all after I have domed them? How and why do these bubble appear afterwards? Could it be the temperature in the room (it's standard room temp.), or something else that causes a delayed reaction and bubbles to appear afterwards?
If anyone has had similar outcomes and resolved them, I'd appreciate any feedback.
Thanks,
Jovan
360251
I use various laser plastics for engraving name badges (IPI, Rowmark, Trolase etc.) and I'm having some issues with bubbles sometimes (not always) appearing on the badges when I leave them to dry overnight.
I use a 2-composite resin that is applied to the badges through a doming gun (so the mixture is evenly mixed and spread). After I apply, I check for bubbles, remove any with a lighter and once I'm sure there are no bubbles I cover the domed badges with a plastic box/lid and leave them to dry and harden. In the morning when I inspect them, I sometimes get badges that have overnight developed a large number of tiny bubble on the surface of the badge and even on occassion a badge may have a whole eruption of bubbles on the surface as seen on the attached photo.
Why does this happen, considering I check and make sure there are no bubbles at all after I have domed them? How and why do these bubble appear afterwards? Could it be the temperature in the room (it's standard room temp.), or something else that causes a delayed reaction and bubbles to appear afterwards?
If anyone has had similar outcomes and resolved them, I'd appreciate any feedback.
Thanks,
Jovan
360251