GLOSSARY TERM

Diluent

A solvent added to paint to reduce its viscosity and improve application properties.

INFO

What it is

A diluent is a solvent or thinner added to paint to reduce its viscosity, making it flow and spray more easily. It adjusts the consistency without changing the colour.

Why it matters

The right amount of diluent helps a coating atomise and lay down properly. Too much, however, thins the film, reduces coverage, and can harm durability, so it must be controlled to the manufacturer's guidance.

Where it is used on a project

Used when preparing certain coatings for spray application, particularly solvent-based products that need adjusting to the correct spraying viscosity.

How NECC approaches it

We thin coatings only as the manufacturer specifies, keeping the film integrity and performance intact while achieving the right consistency for a clean spray finish.

Category: Materials & Substrates

FAQ's

What is a diluent used for?

A diluent is added to reduce a paint's viscosity so it flows and atomises correctly for the chosen application method.

Can you add as much diluent as you like?

Only the type and amount specified by the manufacturer. Over-thinning weakens the film and can affect coverage and durability.

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