I am having problems with paint lifting off the subsurface of my clear acrylic signs. I apply viynl, scuff and clean before painting. next I paint the background with One-shot or similar enamels. Then I wait a day or two, then back-up the area with vinyl for protection, and install with d/f tape and glue. The areas with tape and glue on them pop or release. This has been a problem that I can not fix. please help.
Posted by Rick Chavez (Member # 2146) on :
Geez I wasn't paying attention, sometimes I put an acrylic backer behind it, the attach to the wall, what way the pressure is not an the graphics but the backer, You might try latex or Matthews sign paint. Rick
[ March 10, 2003, 11:21 PM: Message edited by: Rick Chavez ]
Posted by Rick Chavez (Member # 2146) on :
My computer is freaking out, and I think my brain is too, disregard please.
[ March 10, 2003, 11:22 PM: Message edited by: Rick Chavez ]
Posted by Rick Chavez (Member # 2146) on :
Curse I double posted. > Posted by Eric Roche (Member # 1967) on :
We have always used latex without the problems you mention. usually 2 to 3 light coats with a foam roller. Dont try to cover in one coat and let dry before the next.
Posted by David Harding (Member # 108) on :
To really adhere to acrylic, you need a paint designed for it. There are paints, such as Grip Flex and Lacryl that are formulated to "bite" into acrylic. They are used for backsprayed faces in the electric sign industry. Also, automotive acrylic enamels bond well to acrylic. My experience with lettering enamels and the like is that they do not bond well enough.
Posted by Rob McCauley (Member # 2735) on :
Charles,
We paint acrylic subsurface all day long here @ Archway Graphic Designs mostly making ADA compliant acrylic sinage. We make 'em by the hundreds so maybe I can save you from some of the nightmare we went through getting this right over the past year and a half.
We mainly use Matthews acrylic polyurethane paints. As of late we get the desired coverage & adhesion just spraying it directly onto a piece of well cleaned acrylic. However, in the past, or on larger pieces, we use a colorless adhesion promoter called "Tie Bond" which gets applied separately, in otherwords it's not a additive for the paint mix. This is also a Matthews product (#74 777SP). When using the Tie Bond it must be laid down and allowed to dry before the subsurface vinyl is applied. We apply all of this using HVLP guns, I would not recommend rolling or brushing. We have had problems in the past using Sherwin Williams Acrylic Enamels (Automotive paints basically) but those only make up approx. 10% of our colors. I don't know why anyone would attempt to paint acrylic with Latex Does this even work at all...In our experience it did not produce the quality of product we like to sell at least.
Hope this helps!
[ March 13, 2003, 04:47 PM: Message edited by: Rob McCauley ]
Posted by Doug Allan (Member # 2247) on :
I've used Krylon with good results. I apply some vinyl scraps as my protection for the df tape
![[Frown]](frown.gif)
![[Mad]](mad.gif)
we went through getting this right over the past year and a half. ![[Confused]](confused.gif)
Does this even work at all...In our experience it did not produce the quality of product we like to sell at least.