Which clear coat?

[ironhat]

This is a bit OT for this board but with such a diverse knowledge base I figured that it was worth a try.

My daughter painted a child's poem on a piece of old roofing slate and is afraid that it is going to spall and ruin the piece. She's asking the all-knowing father what I'd use and I said that I'd get back to her. The only thing that I can think of would be a two-part, clear epoxy like what is used on restaurant tables and to embed scorpions and such in a block of it. Do you think that this is the best bet or is there another? This would be what I was thinking of.

TIA

[cabinetman]

The two part pour on stuff works good as long as it's not exposed to weather or direct sunlight.
.

[MilDoc]

Mirror Coat. Great stuff.

I have a coffee table made out of reclaimed driftwood, in the 1970s. Still in great shape.

[ironhat]

Thanks, gents! Sounds like the ticket and you have helped to preserve my status at the all- knowing... naa, they know that I hit this forum for most of what I need.

Thanks again!

[ironhat]

Hey, the daughter just threw a wrench into our solution. She doesn't want a glossy or yellow finish. I don't know of anything like that other than to use a heavy build of polyvinyl acrylic (like Min-Wax). I haven't done more than 4 coats and that was with sanding between coats (she shouldn't require that). Kids!

[atgcpaul]

Hey, the daughter just threw a wrench into our solution. She doesn't want a glossy or yellow finish. I don't know of anything like that other than to use a heavy build of polyvinyl acrylic (like Min-Wax). I haven't done more than 4 coats and that was with sanding between coats (she shouldn't require that). Kids!

What about Mod Podge? In 3rd grade vacation Bible school, we Mod Podged
the Lord's Prayer on a small piece of wood. That plaque is still holding up well
25 years later. If the slate isn't going outside, then this should work for you.
It dries clear and it's not glossy.

Paul

[ironhat]

I'll have to look into that, Paul. I hadn't thought of that in years!

[poolhound]

Mirror Coat. Great stuff.

I have a coffee table made out of reclaimed driftwood, in the 1970s. Still in great shape.

I have looked at Mirror Coat on the shelf but have not yet had a need to use it. How do you apply it and does it really self level?