Multi-Purpose RDP: One Grade or Three

Every additional grade in a plant costs a silo, a dosing line, a quality control routine and a batch of paperwork. A multi-purpose binder exchanges performance for simplicity.

The Cost of Complexity

A silo slot is a fixed asset. Beyond three or four grades, small plants run out of storage before they run out of recipes.

Changeovers cost time and generate off-spec material at the start of each run. Fewer grades means fewer changeovers and more stable output.

What You Give Up

A multi-purpose grade rarely wins a single test. A specialist grade will beat it on impact resistance, on water repellency or on sandability, depending on which property the specialist was designed for.

The question is whether that difference is visible to the customer. In a commodity C1 adhesive it usually is not; in a premium putty it usually is.

A Practical Rule

Use one multi-purpose grade for the long tail of products that sell in small volumes, and keep specialists for the products that carry the brand.

Review the split once a year. Volumes move, and the product that justified a specialist grade last year may not justify it now.