[glassforum.org]

Hi @DAVID ,

Thanks for joining glassforum.org!

You might want to check with companies that specialize in custom glass manufacturing. Here are a few suggestions:

1. Schott AG: Since you mentioned Opalika by Schott, it might be worth reaching out to them directly. They could have a similar product or direct you to a supplier.

2. Pilkington: Known for their high-quality glass products, they might have something that matches your needs.

3. Guardian Glass: Another major player in the glass manufacturing industry, they offer a range of specialized glass products.

4. Saint-Gobain: This company provides a variety of glass solutions and might have the type of glass sheet you’re looking for.

Additionally, you can try contacting local glass suppliers or distributors who might have access to these products or can recommend alternatives.

Hope this helps!