Cohorts | Painting Best Practices

ACM panel help

Cohorts

ACM panel help

Posted by Tammy on April 27, 2021 at 4:38 pm

Hello all… I am wanting to move on to using ACM panels as a substrate. I have found a local place to buy large panels of MAXMETAL, which I understand to be similar to Dibond.

There is a white coating on both sides of the aluminum. The specs say that it is baked enamel and it is smooth.

Can I lightly sand, wipe with alcohol to clean and then proceed with my layers of Rublev Oil Ground? Or do I need some sort of primer first?

Also… I have read to apply 2-3 coats of Lead Oil Ground. If I like the surface with just one coat, is that ok? …or is there a technical reason to apply more than one coat.

Furthermore, can you paint straight on to this baked enamel surface if you like it that smooth? Just curious on this last question.

I plan to watch the course on this…but hoped to get answers to the specific questions sooner because I need these panels ready by next week.

Thanks so much!

p.s. Here is the link to the data sheet.

https://cdn.grimco.com/Pdf/Home/Viewer?file=https://cdn.grimco.com/product/MAXMETALPLUSALUMINUMCOMPOSITEPANELS/datasheet/maxmetalplusUSspecsheetupdatednov2020.pdf

Tammy replied 3 years ago 2 Members · 7 Replies
7 Replies

Tammy

Member
April 27, 2021 at 6:06 pm

If there is a reason that I shouldn’t use this, please let me know.
- Tammy
  
  Member
  April 28, 2021 at 10:14 am
  
  I have since watched the course ‘Primer on Grounds’ and it answered my question about the process and whether I needed a primer in-between the ACM panel and the Lead Oil Ground to be to no extra primer needed.
George O'Hanlon

Organizer
May 2, 2021 at 11:54 am
Tammy, if you need additional help, please let me know, but generally, if the aluminum is coated, you can apply the ground directly to the panel. We also recommend Rublev Colours Lead Alkyd Ground for the best adhesion performance.
- This reply was modified 3 years ago by George O'Hanlon.
- Tammy
  
  Member
  May 19, 2021 at 12:23 pm
  
  Thanks, George! Can you paint straight on to this baked enamel surface if you like it that smooth? …maybe lightly sanded to give tooth?? I would assume that the adhesion would be similar to painting on glass.
Tammy

Member
May 19, 2021 at 12:20 pm
.
- This reply was modified 3 years ago by Tammy.
George O'Hanlon

Organizer
May 19, 2021 at 2:00 pm

Tammy, follow the recommendations on this page for preparing the coated surface of the ACM:
https://www.naturalpigments.com/lead-alkyd-ground.html

You will get better adhesion with the Rublev Colours Lead Alkyd Ground than the Rublev Colours Lead Oil Ground ON ACM.

We do not recommend painting directly on the coated surface of ACM, because oil paint does not exhibit the best adhesion on this surface.
- Tammy
  
  Member
  May 19, 2021 at 2:07 pm
  
  Got it! …thanks so much!

Log In to Reply

Log in to reply.

Our Mission

The choices that artists make of painting materials and techniques have consequences on the longevity of their work. This website is about those choices and how our present understanding of these materials and techniques from conservation research and practice can help artists make better choices.

Get Started

About

© 2020–2024 Natural Pigments