H&S Research Search

What do you remember?

Try a workplace, company, occupation, product, city, trust, or another detail you remember.

Start with one remembered detail.

Your search stays in your browser. Nothing you type here is submitted to H&S. Open full search →
Johns-Manville historical product research

Johns-Manville Millboard, Paper and Felt History

Explore numbered millboards, Asbestocite, Flexboard, paper, felts and jackets—names found in historical company product lists and plant records.

Original historical recordsOctober 2026

Names on the historical product list

Asbestocite and Flexboard

The 1975 company listing dates both sheet-product names to 1927 and lists 1975 as their discontinuation year.

Numbered millboards

The listing includes 102, 106, 106B, 106H, 219, 101, 103 and 105 asbestos millboard, plus C, XXX and Type A millboard. The numbers may be more recognizable than the general term “millboard.”

Asbestos paper and rollboard

Company manufacturing records identify fibroid papers, high-strength papers, commercial grades and rollboard among product families.

Fire felt and jackets

Company plant lists include asbestos roll fire felt, weatherproofing felt, welding paper, 15A and 45A asbestos jackets and coated jackets.

Where people may remember them

Fabrication benches

Sheets cut to dimensions, punched, trimmed or fitted around equipment.

Boiler and furnace work

Heat-resistant sheets, backing materials, gaskets, wraps and jackets in repair and maintenance settings.

Storerooms and job tickets

A numbered millboard grade, a roll of felt or a jacket designation may appear on an invoice or material requisition.

Plant maintenance

Paper and felt materials may be remembered through rolls, cartons, cutting patterns or the people who supplied them.

Original product and plant records

Read the historical source: 1975 company product list ↗

Read the historical source: company product and plant response ↗

Continue exploring Johns-Manville history

Historical product library →   Company history and Manville Trust →   Start with what you remember →