Mounting back painted acrylic to MDF

[graphics man]

Hi guys, I have a question . I have a project where I will be back painting .25 clear acrylic with a matthews paint then mounting to .5'' mdf with silicon and speed tape . My only worry is that the silicon might attack that paint . Has any one had this problem or have a better way to do this . Please let me know thank you

 

[iSign]

I'd cover the entire back with high performance vinyl. I had double face tape shrink before, & it pulled off paint where it did that, so that has been my solution, or stainless steel screws & decorative washers look ok on the front sometimes...

 

[dwt]

If that is going outside the mdf is going to swell up in short order.

 

[graphics man]

Its going to be inside a television studio and there is about 60 sheets worth being installed .

 

[SignosaurusRex]

Full coverage cast vinyl over the back-paint. Mount with silicone and minimal d/s tape. No problems.

 

[Gino]

I'd feel safer if they were pinned and put some schmutz on it.

 

[daveb]

Full coverage cast vinyl over the back-paint. Mount with silicone and minimal d/s tape. No problems.

Most of the problems we experience with failure is due to expansion and contraction of the acrylic due to extreme heat and cold in exterior application. I don't think you need to over think it too much for interior applications. If the temp. is stable it shouldn't be a problem.