---
title: "ASTM D3260"
url: "https://mat-cs.com/astm-d3260"
description: "This test method covers the evaluation of the mortar and acid resistance of clear protective coating factory applied to extruded aluminum substrates."
---

ASTM Standard

# ASTM D3260

Standard Test Method for Acid and Mortar Resistance of Factory-Applied Clear Coatings on Extruded Aluminum Products

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## Significance and Use

4.1 This test method will provide differentiation between types of coatings for acid and motor resistance providing the coating is applied in a uniform continuous film with a specified film thickness.

## Scope

1.1 This test method covers the evaluation of the mortar and acid resistance of clear protective coating factory applied to extruded aluminum substrates.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.