Why is butyrate dope safer than nitrate dope?

• A. It is much less flammable.
• B. It dries faster.
• C. It adheres better to fabric.
• D. It is cheaper.

Answer: (A)

Flammability is the key safety factor when applying fabric dopes, because the process uses solvents and creates a highly flammable environment in the work area. Butyrate dope, which is cellulose acetate butyrate, is much less flammable than nitrate dope (nitrocellulose-based). The absence of nitro groups and the different polymer chemistry make it less prone to ignition and burning, reducing fire risk during mixing, application, and curing. The other properties listed—drying speed, adhesion to fabric, and cost—affect performance or economy but don’t address the safety concern about fire and flame potential as directly as the reduced flammability does.