ASTM C510-16 (2022) PDF

Full title and description

ASTM C510-16(2022) — Standard Test Method for Staining and Color Change of Single- or Multicomponent Joint Sealants. This procedure describes an accelerated laboratory method to evaluate whether a joint sealant will stain porous substrates (masonry, concrete, natural stone) and to measure potential color change in the sealant itself after exposure to artificial weathering.

Abstract

This test method provides a reproducible, accelerated-weathering laboratory procedure for assessing (1) the likelihood that a sealant will cause staining on porous substrates in contact with the sealant and (2) the susceptibility of the sealant to color change from weathering. It is intended for use in product evaluation, quality control, and specification verification; it does not predict staining caused by residue run‑down or dirt pick‑up.

General information

• Status: Active; C510-16 reapproved/confirmed in 2022 (designation shown as C510-16(2022)).
• Publication date: Original designation - 2016; reapproval/confirmation recorded in January 2022 (ASTM record shows last update in January 2022).
• Publisher: ASTM International (Committee C24, subcommittee C24.40).
• ICS / categories: 91.100.50 (Binders. Sealing materials).
• Edition / version: C510‑16 (shown as C510‑16(2022) to indicate the 2016 designation with a 2022 reapproval/confirmation).
• Number of pages: 2 pages (concise test method).

Scope

This test method covers an accelerated laboratory procedure to determine whether a sample of joint sealant will stain porous substrates such as masonry, concrete, or stone (marble, limestone, sandstone, granite) when in contact with the sealant, and to assess color change of the sealant itself under artificial weathering conditions. The method is not intended to predict staining from residue run‑down or dirt pickup by sealant exudates.

Key topics and requirements

• Preparation of sealant/substrate assemblies and conditioning for accelerated weathering exposure.
• Use of controlled artificial weathering cycles to simulate outdoor exposure and induce potential staining and color change.
• Assessment of staining on porous substrates (visual and/or instrumental color comparison) and measurement of sealant color change (colorimetry).
• Limitations and exclusions — does not address gross exudation staining mechanisms addressed by Test Method D2203.

Typical use and users

Used by sealant manufacturers for product development and quality control, independent testing laboratories for performance verification, specifiers and architects assessing materials for use on porous substrates, and quality assurance teams evaluating batch consistency and suitability for specified exposure conditions.

Related standards

Test Method D2203 (staining from gross exudations), ASTM C1248 (and other C‑series sealant test methods), and international references such as ISO 16938‑1. The standard forms part of the suite of ASTM C24 committee standards addressing joint sealants and related test procedures.

Keywords

sealant, joint sealant, staining, color change, artificial weathering, masonry, concrete, natural stone, ASTM C510, colorimetry, test method

FAQ

Q: What is this standard?

A: ASTM C510-16(2022) is a short, standardized laboratory test method that evaluates whether a single‑ or multicomponent joint sealant will stain porous substrates and whether the sealant will change color after artificial weathering.

Q: What does it cover?

A: It covers sample preparation, exposure to controlled artificial weathering, and assessment of staining on substrates and color change of the sealant. It does not address staining caused by residue run‑down or dirt accumulation, nor does it replace tests for gross exudation such as D2203.

Q: Who typically uses it?

A: Sealant manufacturers, independent testing labs, specifiers, architects, and QA/QC personnel use the method for product evaluation, specification compliance, and comparative testing.

Q: Is it current or superseded?

A: The designation C510‑16 indicates original approval in 2016; the record shows confirmation/reapproval in 2022 (appearing as C510‑16(2022)). As of the 2022 confirmation it is an active ASTM test method. Users should verify the current status with ASTM before relying on a version for formal procurement or compliance.

Q: Is it part of a series?

A: Yes — it is one of several ASTM C24 / sealant test methods and is referenced alongside other related procedures (for example, D2203 and multiple C‑series sealant tests used for rheology, adhesion, hardness, tack‑free time, and weathering).

Q: What are the key keywords?

A: Sealant, stain, color change, joint sealant, artificial weathering, masonry, concrete, ASTM C510.